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17 Commits

Author SHA1 Message Date
Junzi Sun
555b2eea40 reduce complexity and change default type to str 2020-02-26 00:09:52 +01:00
Junzi Sun
dea7cde317 update clean script 2019-10-29 23:59:15 +01:00
Junzi Sun
e16d34bc06 consolidation 2019-10-29 23:55:25 +01:00
Junzi Sun
9bb87b00be update benchmark 2019-10-29 23:39:57 +01:00
Junzi Sun
3dae0438bf update tests 2019-10-29 23:19:37 +01:00
Junzi Sun
02c5117de5 minor updates to C code 2019-10-29 22:33:48 +01:00
Junzi Sun
3f24f78d3a fix hidden altitude() call 2019-10-29 22:24:59 +01:00
Junzi Sun
cf3828d2a0 add make options 2019-10-29 22:24:27 +01:00
Junzi Sun
f70d1f2f1f clean up useless stuff 2019-10-29 18:03:23 +01:00
Junzi Sun
dfeb65fbd7 "make" things easier 2019-10-29 17:53:39 +01:00
Xavier Olive
13b283666a optimisations in bds09 2019-10-29 17:37:45 +01:00
Xavier Olive
6144b88188 bds09 2019-10-29 17:33:32 +01:00
Xavier Olive
b503beb3fd bds08 2019-10-29 16:53:39 +01:00
Xavier Olive
c804cd876c separate cleanly cython and python, bds05, bds06, modulo issues 2019-10-29 16:37:44 +01:00
Xavier Olive
d48caed7e6 add bds05 2019-10-29 11:41:00 +01:00
Xavier Olive
eb675d5ca3 cythonize common 2019-10-29 10:00:01 +01:00
Junzi Sun
b04a1bd49c remove unused functions 2019-10-28 16:24:15 +01:00
111 changed files with 1708 additions and 4964 deletions

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@ -1,12 +0,0 @@
[run]
branch = True
include = */pyModeS/*
omit = *tests*
[report]
exclude_lines =
coverage: ignore
raise NotImplementedError
if TYPE_CHECKING:
ignore_errors = True

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@ -1,11 +0,0 @@
version: 2
updates:
- package-ecosystem: "pip"
directory: "/"
schedule:
interval: "monthly"
- package-ecosystem: "github-actions"
directory: "/"
schedule:
interval: "monthly"

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@ -1,16 +0,0 @@
name: build and publish
on:
release:
types: [created]
jobs:
build:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v3
- name: Build and publish to pypi
uses: JRubics/poetry-publish@v2.0
with:
poetry_version: "==1.8.2"
pypi_token: ${{ secrets.PYPI_API_TOKEN_PYMODES }}

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@ -1,70 +0,0 @@
name: tests
on:
push:
pull_request_target:
workflow_dispatch:
env:
POETRY_VERSION: "1.6.1"
jobs:
deploy:
runs-on: ${{ matrix.os }}
strategy:
matrix:
os: [ubuntu-latest, macos-latest, windows-latest]
python-version: ["3.9", "3.10", "3.11", "3.12"]
env:
PYTHON_VERSION: ${{ matrix.python-version }}
steps:
- uses: actions/checkout@v4
- name: Set up Python
uses: actions/setup-python@v5
with:
python-version: ${{ matrix.python-version }}
# virtualenv cache should depends on OS, Python version and `poetry.lock` (and optionally workflow files).
- name: Cache Packages
uses: actions/cache@v4
if: ${{ !startsWith(runner.os, 'windows') }}
with:
path: |
~/.local
.venv
key: poetry-${{ runner.os }}-${{ env.PYTHON_VERSION }}-${{ hashFiles('**/poetry.lock') }}
- name: Add poetry to windows path
if: "startsWith(runner.os, 'windows')"
run: |
echo "C:\Users\runneradmin\.local\bin" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
- name: Install and configure Poetry
uses: snok/install-poetry@v1.4.0
with:
version: ${{ env.POETRY_VERSION }}
virtualenvs-create: true
virtualenvs-in-project: true
- name: Display Python version
run: poetry run python -c "import sys; print(sys.version)"
- name: Install dependencies
run: |
poetry install
- name: Type checking
run: |
poetry run mypy pyModeS
- name: Run tests
run: |
poetry run pytest tests --cov --cov-report term-missing
- name: Upload coverage to Codecov
uses: codecov/codecov-action@v4
with:
env_vars: PYTHON_VERSION

3
.gitignore vendored
View File

@ -5,6 +5,9 @@ __pycache__/
*.py[cod]
.pytest_cache/
#cython
.c
# C extensions
*.so

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@ -8,18 +8,11 @@ ext:
python setup.py build_ext --inplace
test:
make clean
@echo ""
@echo "[Test with py_common]"
python -m pytest tests
@echo ""
@echo "[Test with c_common]"
python setup.py build_ext --inplace
python -m pytest tests
python -m pytest
clean:
find pyModeS -type f -name '*.c' -delete
find pyModeS -type f -name '*.so' -delete
find pyModeS/decoder -type f -name '*.c' -delete
find pyModeS/decoder -type f -name '*.so' -delete
find . | grep -E "(__pycache__|\.pyc|\.pyo$$)" | xargs rm -rf
rm -rf *.egg-info
rm -rf .pytest_cache

View File

@ -1,42 +1,6 @@
The Python ADS-B/Mode-S Decoder
===============================
PyModeS is a Python library designed to decode Mode-S (including ADS-B) messages. It can be imported to your python project or used as a standalone tool to view and save live traffic data.
This is a project created by Junzi Sun, who works at `TU Delft <https://www.tudelft.nl/en/>`_, `Aerospace Engineering Faculty <https://www.tudelft.nl/en/ae/>`_, `CNS/ATM research group <http://cs.lr.tudelft.nl/atm/>`_. It is supported by many `contributors <https://github.com/junzis/pyModeS/graphs/contributors>`_ from different institutions.
Introduction
------------
pyModeS supports the decoding of following types of messages:
- DF4 / DF20: Altitude code
- DF5 / DF21: Identity code (squawk code)
- DF17 / DF18: Automatic Dependent Surveillance-Broadcast (ADS-B)
- TC=1-4 / BDS 0,8: Aircraft identification and category
- TC=5-8 / BDS 0,6: Surface position
- TC=9-18 / BDS 0,5: Airborne position
- TC=19 / BDS 0,9: Airborne velocity
- TC=28 / BDS 6,1: Airborne status [to be implemented]
- TC=29 / BDS 6,2: Target state and status information [to be implemented]
- TC=31 / BDS 6,5: Aircraft operational status [to be implemented]
- DF20 / DF21: Mode-S Comm-B messages
- BDS 1,0: Data link capability report
- BDS 1,7: Common usage GICB capability report
- BDS 2,0: Aircraft identification
- BDS 3,0: ACAS active resolution advisory
- BDS 4,0: Selected vertical intention
- BDS 4,4: Meteorological routine air report (experimental)
- BDS 4,5: Meteorological hazard report (experimental)
- BDS 5,0: Track and turn report
- BDS 6,0: Heading and speed report
If you find this project useful for your research, please considering cite this tool as::
@article{sun2019pymodes,
@ -50,6 +14,40 @@ If you find this project useful for your research, please considering cite this
Introduction
---------------------
PyModeS is a Python library designed to decode Mode-S (including ADS-B) message. It can be imported to your python project or be used as a standalone tool to view and save live traffic data.
Messages with following Downlink Formats (DF) are supported:
**DF17 / DF18: Automatic Dependent Surveillance-Broadcast (ADS-B)**
- TC=1-4 / BDS 0,8: Aircraft identification and category
- TC=5-8 / BDS 0,6: Surface position
- TC=9-18 / BDS 0,5: Airborne position
- TC=19 / BDS 0,9: Airborne velocity
- TC=28 / BDS 6,1: Airborne status [to be implemented]
- TC=29 / BDS 6,2: Target state and status information [to be implemented]
- TC=31 / BDS 6,5: Aircraft operational status [to be implemented]
**DF20 / DF21: Mode-S Comm-B replies**
- BDS 1,0: Data link capability report
- BDS 1,7: Common usage GICB capability report
- BDS 2,0: Aircraft identification
- BDS 3,0: ACAS active resolution advisory
- BDS 4,0: Selected vertical intention
- BDS 4,4: Meteorological routine air report (experimental)
- BDS 4,5: Meteorological hazard report (experimental)
- BDS 5,0: Track and turn report
- BDS 6,0: Heading and speed report
**DF4 / DF20: Altitude code**
**DF5 / DF21: Identity code (squawk code)**
Resources
-----------
@ -57,50 +55,26 @@ Check out and contribute to this open-source project at:
https://github.com/junzis/pyModeS
Detailed manual on Mode-S decoding is published at:
https://mode-s.org/decode
https://mode-s.org/decode.
The API documentation of pyModeS is at:
https://mode-s.org/api
http://pymodes.readthedocs.io
Basic installation
-------------------
Install
-------
Installation examples::
# stable version
pip install pyModeS
# conda (compiled) version
conda install -c conda-forge pymodes
# development version
pip install git+https://github.com/junzis/pyModeS
Dependencies ``numpy``, and ``pyzmq`` are installed automatically during previous installations processes.
If you need to connect pyModeS to a RTL-SDR receiver, ``pyrtlsdr`` need to be installed manually::
pip install pyrtlsdr
Advanced installation (using c modules)
------------------------------------------
If you want to make use of the (faster) c module, install ``pyModeS`` as follows::
# conda (compiled) version
conda install -c conda-forge pymodes
# stable version
pip install pyModeS
# development version
git clone https://github.com/junzis/pyModeS
cd pyModeS
poetry install -E rtlsdr
Dependencies ``numpy``, ``pyzmq`` and ``pyrtlsdr`` are installed automatically during previous installations processes.
View live traffic (modeslive)
@ -126,7 +100,7 @@ General usage::
Live with RTL-SDR
*******************
If you have an RTL-SDR receiver connected to your computer, you can use the ``rtlsdr`` source switch (require ``pyrtlsdr`` package), with command::
If you have an RTL-SDR receiver plugged to the computer, you can connect it with ``rtlsdr`` source switch, shown as follows::
$ modeslive --source rtlsdr
@ -167,7 +141,7 @@ Common functions
pms.hex2bin(str) # Convert hexadecimal string to binary string
pms.bin2int(str) # Convert binary string to integer
pms.hex2int(str) # Convert hexadecimal string to integer
pms.gray2int(str) # Convert grey code to integer
pms.gray2int(str) # Convert grey code to interger
Core functions for ADS-B decoding
@ -181,7 +155,7 @@ Core functions for ADS-B decoding
# Typecode 1-4
pms.adsb.callsign(msg)
# Typecode 5-8 (surface), 9-18 (airborne, barometric height), and 20-22 (airborne, GNSS height)
# Typecode 5-8 (surface), 9-18 (airborne, barometric height), and 9-18 (airborne, GNSS height)
pms.adsb.position(msg_even, msg_odd, t_even, t_odd, lat_ref=None, lon_ref=None)
pms.adsb.airborne_position(msg_even, msg_odd, t_even, t_odd)
pms.adsb.surface_position(msg_even, msg_odd, t_even, t_odd, lat_ref, lon_ref)
@ -275,20 +249,8 @@ Mode-S Enhanced Surveillance (EHS)
pms.commb.vr60ins(msg) # Inertial vertical speed (ft/min)
Meteorological reports [Experimental]
**************************************
To identify BDS 4,4 and 4,5 codes, you must set ``mrar`` argument to ``True`` in the ``infer()`` function:
.. code:: python
pms.bds.infer(msg. mrar=True)
Once the correct MRAR and MHR messages are identified, decode them as follows:
Meteorological routine air report (MRAR)
+++++++++++++++++++++++++++++++++++++++++
Meteorological routine air report (MRAR) [Experimental]
********************************************************
.. code:: python
@ -299,8 +261,8 @@ Meteorological routine air report (MRAR)
pms.commb.hum44(msg) # Humidity (%)
Meteorological hazard air report (MHR)
+++++++++++++++++++++++++++++++++++++++++
Meteorological hazard air report (MHR) [Experimental]
*******************************************************
.. code:: python

View File

@ -1,67 +0,0 @@
import os
import shutil
import sys
# import pip
from Cython.Build import cythonize
from setuptools import Distribution, Extension
from setuptools.command import build_ext
def build() -> None:
compile_args = []
if sys.platform == "linux":
compile_args += ["-Wno-pointer-sign", "-Wno-unused-variable"]
extensions = [
Extension(
"pyModeS.c_common",
["pyModeS/c_common.pyx"],
extra_compile_args=compile_args,
),
Extension(
"pyModeS.decoder.flarm.decode",
[
"pyModeS/decoder/flarm/decode.pyx",
"pyModeS/decoder/flarm/core.c",
],
extra_compile_args=compile_args,
include_dirs=["pyModeS/decoder/flarm"],
),
# Extension(
# "pyModeS.extra.demod2400.core",
# [
# "pyModeS/extra/demod2400/core.pyx",
# "pyModeS/extra/demod2400/demod2400.c",
# ],
# extra_compile_args=compile_args,
# include_dirs=["pyModeS/extra/demod2400"],
# libraries=["m"],
# ),
]
ext_modules = cythonize(
extensions,
compiler_directives={"binding": True, "language_level": 3},
)
distribution = Distribution({"name": "extended", "ext_modules": ext_modules})
distribution.package_dir = "extended" # type: ignore
cmd = build_ext.build_ext(distribution)
cmd.verbose = True # type: ignore
cmd.ensure_finalized() # type: ignore
cmd.run()
# Copy built extensions back to the project
for output in cmd.get_output_mapping():
relative_extension = os.path.relpath(output, cmd.build_lib)
shutil.copyfile(output, relative_extension)
mode = os.stat(relative_extension).st_mode
mode |= (mode & 0o444) >> 2
os.chmod(relative_extension, mode)
if __name__ == "__main__":
build()

View File

@ -17,5 +17,5 @@ help:
# "make mode" option. $(O) is meant as a shortcut for $(SPHINXOPTS).
%: Makefile
rm -f source/pyModeS*.rst source/modules.rst
sphinx-apidoc -f -e -M -o source/ ../pyModeS ../pyModeS/decoder/ehs.py ../pyModeS/decoder/els.py ../pyModeS/streamer ../pyModeS/extra
sphinx-apidoc -f -e -M -o source/ ../pyModeS
@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)

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@ -1,17 +0,0 @@
{% extends "!layout.html" %}
{% block footer %}
{{ super() }}
<!-- Global site tag (gtag.js) - Google Analytics -->
<script async src="https://www.googletagmanager.com/gtag/js?id=UA-74700456-1"></script>
<script>
window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', 'UA-74700456-1');
</script>
{% endblock %}

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@ -14,20 +14,19 @@
#
import os
import sys
sys.path.insert(0, os.path.abspath("../.."))
sys.path.insert(0, os.path.abspath('../..'))
# -- Project information -----------------------------------------------------
project = "pyModeS"
copyright = "2019, Junzi Sun"
author = "Junzi Sun"
project = 'pyModeS'
copyright = '2019, Junzi Sun'
author = 'Junzi Sun'
# The short X.Y version
version = ""
version = ''
# The full version, including alpha/beta/rc tags
release = ""
release = ''
# -- General configuration ---------------------------------------------------
@ -40,24 +39,26 @@ release = ""
# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
# ones.
extensions = [
"sphinx.ext.autodoc",
"sphinx.ext.mathjax",
"sphinx.ext.viewcode",
"sphinx.ext.githubpages",
"sphinx.ext.napoleon",
'sphinx.ext.autodoc',
'sphinx.ext.todo',
'sphinx.ext.coverage',
'sphinx.ext.mathjax',
'sphinx.ext.viewcode',
'sphinx.ext.githubpages',
'sphinx.ext.napoleon',
]
# Add any paths that contain templates here, relative to this directory.
templates_path = ["_templates"]
# templates_path = ['']
# The suffix(es) of source filenames.
# You can specify multiple suffix as a list of string:
#
# source_suffix = ['.rst', '.md']
source_suffix = ".rst"
source_suffix = '.rst'
# The master toctree document.
master_doc = "index"
master_doc = 'index'
# The language for content autogenerated by Sphinx. Refer to documentation
# for a list of supported languages.
@ -81,10 +82,6 @@ pygments_style = None
# a list of builtin themes.
#
# html_theme = 'alabaster'
html_theme = "neo_rtd_theme"
import sphinx_theme
html_theme_path = [sphinx_theme.get_html_theme_path()]
# Theme options are theme-specific and customize the look and feel of a theme
# further. For a list of options available for each theme, see the
@ -111,7 +108,7 @@ html_theme_path = [sphinx_theme.get_html_theme_path()]
# -- Options for HTMLHelp output ---------------------------------------------
# Output file base name for HTML help builder.
htmlhelp_basename = "pyModeSdoc"
htmlhelp_basename = 'pyModeSdoc'
# -- Options for LaTeX output ------------------------------------------------
@ -120,12 +117,15 @@ latex_elements = {
# The paper size ('letterpaper' or 'a4paper').
#
# 'papersize': 'letterpaper',
# The font size ('10pt', '11pt' or '12pt').
#
# 'pointsize': '10pt',
# Additional stuff for the LaTeX preamble.
#
# 'preamble': '',
# Latex figure (float) alignment
#
# 'figure_align': 'htbp',
@ -135,7 +135,8 @@ latex_elements = {
# (source start file, target name, title,
# author, documentclass [howto, manual, or own class]).
latex_documents = [
(master_doc, "pyModeS.tex", "pyModeS Documentation", "Junzi Sun", "manual")
(master_doc, 'pyModeS.tex', 'pyModeS Documentation',
'Junzi Sun', 'manual'),
]
@ -143,7 +144,10 @@ latex_documents = [
# One entry per manual page. List of tuples
# (source start file, name, description, authors, manual section).
man_pages = [(master_doc, "pymodes", "pyModeS Documentation", [author], 1)]
man_pages = [
(master_doc, 'pymodes', 'pyModeS Documentation',
[author], 1)
]
# -- Options for Texinfo output ----------------------------------------------
@ -152,15 +156,9 @@ man_pages = [(master_doc, "pymodes", "pyModeS Documentation", [author], 1)]
# (source start file, target name, title, author,
# dir menu entry, description, category)
texinfo_documents = [
(
master_doc,
"pyModeS",
"pyModeS Documentation",
author,
"pyModeS",
"One line description of project.",
"Miscellaneous",
)
(master_doc, 'pyModeS', 'pyModeS Documentation',
author, 'pyModeS', 'One line description of project.',
'Miscellaneous'),
]
@ -179,7 +177,7 @@ epub_title = project
# epub_uid = ''
# A list of files that should not be packed into the epub file.
epub_exclude_files = ["search.html"]
epub_exclude_files = ['search.html']
# -- Extension configuration -------------------------------------------------

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@ -9,49 +9,11 @@ Welcome to pyModeS documentation!
The source code can be found at: https://github.com/junzis/pyModeS
.. toctree::
:caption: Core modules
:maxdepth: 2
pyModeS.decoder.adsb
pyModeS.decoder.commb
.. toctree::
:caption: ADS-B messages
:maxdepth: 2
pyModeS.decoder.bds.bds05
pyModeS.decoder.bds.bds06
pyModeS.decoder.bds.bds08
pyModeS.decoder.bds.bds09
.. toctree::
:caption: ELS - elementary surveillance
:maxdepth: 2
pyModeS.decoder.bds.bds10
pyModeS.decoder.bds.bds17
pyModeS.decoder.bds.bds20
pyModeS.decoder.bds.bds30
.. toctree::
:caption: EHS - enhanced surveillance
:maxdepth: 2
pyModeS.decoder.bds.bds40
pyModeS.decoder.bds.bds50
pyModeS.decoder.bds.bds60
.. toctree::
:caption: MRAR / MHR
:maxdepth: 2
pyModeS.decoder.bds.bds44
pyModeS.decoder.bds.bds45
:maxdepth: 3
pyModeS.decoder
pyModeS.streamer
pyModeS.extra
----

35
doc/source/make.bat Normal file
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@ -0,0 +1,35 @@
@ECHO OFF
pushd %~dp0
REM Command file for Sphinx documentation
if "%SPHINXBUILD%" == "" (
set SPHINXBUILD=sphinx-build
)
set SOURCEDIR=.
set BUILDDIR=_build
if "%1" == "" goto help
%SPHINXBUILD% >NUL 2>NUL
if errorlevel 9009 (
echo.
echo.The 'sphinx-build' command was not found. Make sure you have Sphinx
echo.installed, then set the SPHINXBUILD environment variable to point
echo.to the full path of the 'sphinx-build' executable. Alternatively you
echo.may add the Sphinx directory to PATH.
echo.
echo.If you don't have Sphinx installed, grab it from
echo.http://sphinx-doc.org/
exit /b 1
)
%SPHINXBUILD% -M %1 %SOURCEDIR% %BUILDDIR% %SPHINXOPTS%
goto end
:help
%SPHINXBUILD% -M help %SOURCEDIR% %BUILDDIR% %SPHINXOPTS%
:end
popd

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@ -1,7 +0,0 @@
pyModeS.c\_common module
========================
.. automodule:: pyModeS.c_common
:members:
:undoc-members:
:show-inheritance:

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@ -1,7 +0,0 @@
pyModeS.common module
=====================
.. automodule:: pyModeS.common
:members:
:undoc-members:
:show-inheritance:

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@ -10,7 +10,6 @@ Submodules
----------
.. toctree::
:maxdepth: 4
pyModeS.decoder.bds.bds05
pyModeS.decoder.bds.bds06
@ -26,3 +25,4 @@ Submodules
pyModeS.decoder.bds.bds50
pyModeS.decoder.bds.bds53
pyModeS.decoder.bds.bds60

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@ -0,0 +1,7 @@
pyModeS.decoder.common module
=============================
.. automodule:: pyModeS.decoder.common
:members:
:undoc-members:
:show-inheritance:

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@ -0,0 +1,7 @@
pyModeS.decoder.ehs module
==========================
.. automodule:: pyModeS.decoder.ehs
:members:
:undoc-members:
:show-inheritance:

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@ -0,0 +1,7 @@
pyModeS.decoder.els module
==========================
.. automodule:: pyModeS.decoder.els
:members:
:undoc-members:
:show-inheritance:

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@ -10,7 +10,6 @@ Subpackages
-----------
.. toctree::
:maxdepth: 4
pyModeS.decoder.bds
@ -18,12 +17,14 @@ Submodules
----------
.. toctree::
:maxdepth: 4
pyModeS.decoder.acas
pyModeS.decoder.adsb
pyModeS.decoder.allcall
pyModeS.decoder.commb
pyModeS.decoder.common
pyModeS.decoder.ehs
pyModeS.decoder.els
pyModeS.decoder.surv
pyModeS.decoder.uncertainty
pyModeS.decoder.uplink

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@ -1,7 +0,0 @@
pyModeS.decoder.uplink module
=============================
.. automodule:: pyModeS.decoder.uplink
:members:
:undoc-members:
:show-inheritance:

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@ -0,0 +1,7 @@
pyModeS.extra.aero module
=========================
.. automodule:: pyModeS.extra.aero
:members:
:undoc-members:
:show-inheritance:

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@ -0,0 +1,16 @@
pyModeS.extra package
=====================
.. automodule:: pyModeS.extra
:members:
:undoc-members:
:show-inheritance:
Submodules
----------
.. toctree::
pyModeS.extra.aero
pyModeS.extra.tcpclient

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@ -0,0 +1,7 @@
pyModeS.extra.tcpclient module
==============================
.. automodule:: pyModeS.extra.tcpclient
:members:
:undoc-members:
:show-inheritance:

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@ -10,15 +10,8 @@ Subpackages
-----------
.. toctree::
:maxdepth: 4
pyModeS.decoder
pyModeS.extra
pyModeS.streamer
Submodules
----------
.. toctree::
:maxdepth: 4
pyModeS.c_common
pyModeS.common

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@ -0,0 +1,16 @@
pyModeS.streamer package
========================
.. automodule:: pyModeS.streamer
:members:
:undoc-members:
:show-inheritance:
Submodules
----------
.. toctree::
pyModeS.streamer.screen
pyModeS.streamer.stream

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@ -0,0 +1,7 @@
pyModeS.streamer.screen module
==============================
.. automodule:: pyModeS.streamer.screen
:members:
:undoc-members:
:show-inheritance:

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@ -0,0 +1,7 @@
pyModeS.streamer.stream module
==============================
.. automodule:: pyModeS.streamer.stream
:members:
:undoc-members:
:show-inheritance:

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cffi = {version = "*", markers = "implementation_name == \"pypy\""}
[[package]]
name = "requests"
version = "2.32.3"
description = "Python HTTP for Humans."
optional = false
python-versions = ">=3.8"
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certifi = ">=2017.4.17"
charset-normalizer = ">=2,<4"
idna = ">=2.5,<4"
urllib3 = ">=1.21.1,<3"
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socks = ["PySocks (>=1.5.6,!=1.5.7)"]
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name = "tomli"
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name = "typing-extensions"
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description = "Backported and Experimental Type Hints for Python 3.8+"
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name = "urllib3"
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description = "HTTP library with thread-safe connection pooling, file post, and more."
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h2 = ["h2 (>=4,<5)"]
socks = ["pysocks (>=1.5.6,!=1.5.7,<2.0)"]
zstd = ["zstandard (>=0.18.0)"]
[extras]
rtlsdr = ["pyrtlsdr"]
[metadata]
lock-version = "2.0"
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3
pyModeS/.gitignore vendored
View File

@ -1,3 +0,0 @@
decoder/flarm/decode.c
extra/demod2400/core.c
c_common.c

View File

@ -1,35 +1,22 @@
from __future__ import absolute_import, print_function, division
import os
import warnings
try:
from . import c_common as common
from .c_common import *
except Exception:
from . import py_common as common # type: ignore
from .py_common import * # type: ignore
from .decoder import c_common as common
from .decoder.c_common import *
except:
from .decoder import common
from .decoder.common import *
from .decoder import tell
from .decoder import adsb
from .decoder import commb
from .decoder import allcall
from .decoder import surv
from .decoder import bds
from .extra import aero
from .extra import tcpclient
__all__ = [
"common",
"tell",
"adsb",
"commb",
"allcall",
"surv",
"bds",
"aero",
"tcpclient",
]
warnings.simplefilter("once", DeprecationWarning)
dirpath = os.path.dirname(os.path.realpath(__file__))

View File

@ -1,18 +0,0 @@
def hex2bin(hexstr: str) -> str: ...
def bin2int(binstr: str) -> int: ...
def hex2int(hexstr: str) -> int: ...
def bin2hex(binstr: str) -> str: ...
def df(msg: str) -> int: ...
def crc(msg: str, encode: bool = False) -> int: ...
def floor(x: float) -> float: ...
def icao(msg: str) -> str: ...
def is_icao_assigned(icao: str) -> bool: ...
def typecode(msg: str) -> int: ...
def cprNL(lat: float) -> int: ...
def idcode(msg: str) -> str: ...
def squawk(binstr: str) -> str: ...
def altcode(msg: str) -> int: ...
def altitude(binstr: str) -> int: ...
def data(msg: str) -> str: ...
def allzeros(msg: str) -> bool: ...
def wrongstatus(data: str, sb: int, msb: int, lsb: int) -> bool: ...

View File

@ -1,22 +0,0 @@
from typing import Optional
def hex2bin(hexstr: str) -> str: ...
def bin2int(binstr: str) -> int: ...
def hex2int(hexstr: str) -> int: ...
def bin2hex(binstr: str) -> str: ...
def df(msg: str) -> int: ...
def crc(msg: str, encode: bool = False) -> int: ...
def floor(x: float) -> float: ...
def icao(msg: str) -> Optional[str]: ...
def is_icao_assigned(icao: str) -> bool: ...
def typecode(msg: str) -> Optional[int]: ...
def cprNL(lat: float) -> int: ...
def idcode(msg: str) -> str: ...
def squawk(binstr: str) -> str: ...
def altcode(msg: str) -> Optional[int]: ...
def altitude(binstr: str) -> Optional[int]: ...
def gray2alt(binstr: str) -> Optional[int]: ...
def gray2int(binstr: str) -> int: ...
def data(msg: str) -> str: ...
def allzeros(msg: str) -> bool: ...
def wrongstatus(data: str, sb: int, msb: int, lsb: int) -> bool: ...

View File

@ -1,8 +1,11 @@
def tell(msg: str) -> None:
from .. import common, adsb, commb, bds
from __future__ import absolute_import, print_function, division
from pyModeS.decoder import adsb, commb, common, bds
def tell(msg):
def _print(label, value, unit=None):
print("%28s: " % label, end="")
print("%20s: " % label, end="")
print("%s " % value, end="")
if unit:
print(unit)
@ -17,21 +20,16 @@ def tell(msg: str) -> None:
_print("Downlink Format", df)
if df == 17:
_print("Protocol", "Mode-S Extended Squitter (ADS-B)")
_print("Protocal", "Mode-S Extended Squitter (ADS-B)")
tc = common.typecode(msg)
if tc is None:
_print("ERROR", "Unknown typecode")
return
if 1 <= tc <= 4: # callsign
callsign = adsb.callsign(msg)
_print("Type", "Identification and category")
_print("Type", "Identitification and category")
_print("Callsign:", callsign)
if 5 <= tc <= 8: # surface position
_print("Type", "Surface position")
_print("Type", "Surface postition")
oe = adsb.oe_flag(msg)
msgbin = common.hex2bin(msg)
cprlat = common.bin2int(msgbin[54:71]) / 131072.0
@ -57,9 +55,7 @@ def tell(msg: str) -> None:
if tc == 19:
_print("Type", "Airborne velocity")
velocity = adsb.velocity(msg)
if velocity is not None:
spd, trk, vr, t = velocity
spd, trk, vr, t = adsb.velocity(msg)
types = {"GS": "Ground speed", "TAS": "True airspeed"}
_print("Speed", spd, "knots")
_print("Track", trk, "degrees")
@ -78,100 +74,12 @@ def tell(msg: str) -> None:
_print("CPR Longitude", cprlon)
_print("Altitude", alt, "feet")
if tc == 29: # target state and status
_print("Type", "Target State and Status")
subtype = common.bin2int((common.hex2bin(msg)[32:])[5:7])
_print("Subtype", subtype)
tcas_operational = adsb.tcas_operational(msg)
types_29 = {0: "Not Engaged", 1: "Engaged"}
tcas_operational_types = {0: "Not Operational", 1: "Operational"}
if subtype == 0:
emergency_types = {
0: "No emergency",
1: "General emergency",
2: "Lifeguard/medical emergency",
3: "Minimum fuel",
4: "No communications",
5: "Unlawful interference",
6: "Downed aircraft",
7: "Reserved",
}
vertical_horizontal_types = {
1: "Acquiring mode",
2: "Capturing/Maintaining mode",
}
tcas_ra_types = {0: "Not active", 1: "Active"}
alt, alt_source, alt_ref = adsb.target_altitude(msg)
angle, angle_type, angle_source = adsb.target_angle(msg)
vertical_mode = adsb.vertical_mode(msg)
horizontal_mode = adsb.horizontal_mode(msg)
tcas_ra = adsb.tcas_ra(msg)
emergency_status = adsb.emergency_status(msg)
_print("Target altitude", alt, "feet")
_print("Altitude source", alt_source)
_print("Altitude reference", alt_ref)
_print("Angle", angle, "°")
_print("Angle Type", angle_type)
_print("Angle Source", angle_source)
if vertical_mode is not None:
_print(
"Vertical mode",
vertical_horizontal_types[vertical_mode],
)
if horizontal_mode is not None:
_print(
"Horizontal mode",
vertical_horizontal_types[horizontal_mode],
)
_print(
"TCAS/ACAS",
tcas_operational_types[tcas_operational]
if tcas_operational
else None,
)
_print("TCAS/ACAS RA", tcas_ra_types[tcas_ra])
_print("Emergency status", emergency_types[emergency_status])
else:
alt, alt_source = adsb.selected_altitude(msg) # type: ignore
baro = adsb.baro_pressure_setting(msg)
hdg = adsb.selected_heading(msg)
autopilot = adsb.autopilot(msg)
vnav = adsb.vnav_mode(msg)
alt_hold = adsb.altitude_hold_mode(msg)
app = adsb.approach_mode(msg)
lnav = adsb.lnav_mode(msg)
_print("Selected altitude", alt, "feet")
_print("Altitude source", alt_source)
_print(
"Barometric pressure setting",
baro,
"" if baro is None else "millibars",
)
_print("Selected Heading", hdg, "°")
if not (common.bin2int((common.hex2bin(msg)[32:])[46]) == 0):
_print(
"Autopilot", types_29[autopilot] if autopilot else None
)
_print("VNAV mode", types_29[vnav] if vnav else None)
_print(
"Altitude hold mode",
types_29[alt_hold] if alt_hold else None,
)
_print("Approach mode", types_29[app] if app else None)
_print(
"TCAS/ACAS",
tcas_operational_types[tcas_operational]
if tcas_operational
else None,
)
_print("LNAV mode", types_29[lnav] if lnav else None)
if df == 20:
_print("Protocol", "Mode-S Comm-B altitude reply")
_print("Protocal", "Mode-S Comm-B altitude reply")
_print("Altitude", common.altcode(msg), "feet")
if df == 21:
_print("Protocol", "Mode-S Comm-B identity reply")
_print("Protocal", "Mode-S Comm-B identity reply")
_print("Squawk code", common.idcode(msg))
if df == 20 or df == 21:
@ -189,7 +97,7 @@ def tell(msg: str) -> None:
}
BDS = bds.infer(msg, mrar=True)
if BDS is not None and BDS in labels.keys():
if BDS in labels.keys():
_print("BDS", "%s (%s)" % (BDS, labels[BDS]))
else:
_print("BDS", BDS)
@ -211,7 +119,7 @@ def tell(msg: str) -> None:
_print("True airspeed", commb.tas50(msg), "knots")
if BDS == "BDS60":
_print("Magnetic Heading", commb.hdg60(msg), "degrees")
_print("Megnatic Heading", commb.hdg60(msg), "degrees")
_print("Indicated airspeed", commb.ias60(msg), "knots")
_print("Mach number", commb.mach60(msg))
_print("Vertical rate (Baro)", commb.vr60baro(msg), "feet/minute")

View File

@ -3,3 +3,6 @@ Decoding Air-Air Surveillance (ACAS) DF=0/16
[To be implemented]
"""
from __future__ import absolute_import, print_function, division
from pyModeS.decoder import common

View File

@ -1,151 +1,73 @@
"""ADS-B module.
"""ADS-B Wrapper.
The ADS-B module also imports functions from the following modules:
The ADS-B wrapper also imports functions from the following modules:
- bds05: ``airborne_position()``, ``airborne_position_with_ref()``,
``altitude()``
- bds06: ``surface_position()``, ``surface_position_with_ref()``,
``surface_velocity()``
- bds08: ``category()``, ``callsign()``
- bds09: ``airborne_velocity()``, ``altitude_diff()``
- pyModeS.decoder.bds.bds05
Functions: ``airborne_position``, ``airborne_position_with_ref``, ``altitude``
- pyModeS.decoder.bds.bds06
Functions: ``surface_position``, ``surface_position_with_ref``, ``surface_velocity``
- pyModeS.decoder.bds.bds08
Functions: ``category``, ``callsign``
- pyModeS.decoder.bds.bds09
Functions: ``airborne_velocity``, ``altitude_diff``
"""
from __future__ import annotations
from __future__ import absolute_import, print_function, division
from datetime import datetime
import pyModeS as pms
from pyModeS.decoder import common
from pyModeS.decoder import uncertainty
from .. import common
from . import uncertainty
from .bds.bds05 import airborne_position, airborne_position_with_ref
from .bds.bds05 import altitude as altitude05
from .bds.bds06 import (
# from pyModeS.decoder.bds import bds05, bds06, bds09
from pyModeS.decoder.bds.bds05 import (
airborne_position,
airborne_position_with_ref,
altitude as altitude05,
)
from pyModeS.decoder.bds.bds06 import (
surface_position,
surface_position_with_ref,
surface_velocity,
)
from .bds.bds08 import callsign, category
from .bds.bds09 import airborne_velocity, altitude_diff
from .bds.bds61 import emergency_squawk, emergency_state, is_emergency
from .bds.bds62 import (
altitude_hold_mode,
approach_mode,
autopilot,
baro_pressure_setting,
emergency_status,
horizontal_mode,
lnav_mode,
selected_altitude,
selected_heading,
target_altitude,
target_angle,
tcas_operational,
tcas_ra,
vertical_mode,
vnav_mode,
)
__all__ = [
"airborne_position",
"airborne_position_with_ref",
"altitude05",
"surface_position",
"surface_position_with_ref",
"surface_velocity",
"callsign",
"category",
"airborne_velocity",
"altitude_diff",
"emergency_squawk",
"emergency_state",
"is_emergency",
"df",
"icao",
"typecode",
"position",
"position_with_ref",
"altitude",
"velocity",
"speed_heading",
"oe_flag",
"version",
"nuc_p",
"nuc_v",
"nic_v1",
"nic_v2",
"nic_s",
"nic_a_c",
"nic_b",
"nac_p",
"nac_v",
"sil",
"selected_altitude",
"target_altitude",
"vertical_mode",
"horizontal_mode",
"selected_heading",
"target_angle",
"baro_pressure_setting",
"autopilot",
"vnav_mode",
"altitude_hold_mode",
"approach_mode",
"lnav_mode",
"tcas_operational",
"tcas_ra",
"emergency_status",
]
from pyModeS.decoder.bds.bds08 import category, callsign
from pyModeS.decoder.bds.bds09 import airborne_velocity, altitude_diff
def df(msg: str) -> int:
def df(msg):
return common.df(msg)
def icao(msg: str) -> None | str:
def icao(msg):
return common.icao(msg)
def typecode(msg: str) -> None | int:
def typecode(msg):
return common.typecode(msg)
def position(
msg0: str,
msg1: str,
t0: int | datetime,
t1: int | datetime,
lat_ref: None | float = None,
lon_ref: None | float = None,
) -> None | tuple[float, float]:
"""Decode surface or airborne position from a pair of even and odd
position messages.
Note, that to decode surface position using the position message pair,
the reference position has to be provided.
def position(msg0, msg1, t0, t1, lat_ref=None, lon_ref=None):
"""Decode position from a pair of even and odd position message
(works with both airborne and surface position messages)
Args:
msg0 (string): even message (28 hexdigits)
msg1 (string): odd message (28 hexdigits)
msg0 (string): even message (28 bytes hexadecimal string)
msg1 (string): odd message (28 bytes hexadecimal string)
t0 (int): timestamps for the even message
t1 (int): timestamps for the odd message
lat_ref (float): latitude of reference position
lon_ref (float): longitude of reference position
Returns:
(float, float): (latitude, longitude) of the aircraft
"""
tc0 = typecode(msg0)
tc1 = typecode(msg1)
if tc0 is None or tc1 is None:
raise RuntimeError("Incorrect or inconsistent message types")
if 5 <= tc0 <= 8 and 5 <= tc1 <= 8:
if lat_ref is None or lon_ref is None:
if (not lat_ref) or (not lon_ref):
raise RuntimeError(
"Surface position encountered, a reference position"
" lat/lon required. Location of receiver can be used."
"Surface position encountered, a reference \
position lat/lon required. Location of \
receiver can be used."
)
else:
return surface_position(msg0, msg1, t0, t1, lat_ref, lon_ref)
@ -159,20 +81,19 @@ def position(
return airborne_position(msg0, msg1, t0, t1)
else:
raise RuntimeError("Incorrect or inconsistent message types")
raise RuntimeError("incorrect or inconsistant message types")
def position_with_ref(msg: str, lat_ref: float, lon_ref: float) -> tuple[float, float]:
"""Decode position with only one message.
A reference position is required, which can be previously
calculated location, ground station, or airport location.
The function works with both airborne and surface position messages.
The reference position shall be within 180NM (airborne) or 45NM (surface)
def position_with_ref(msg, lat_ref, lon_ref):
"""Decode position with only one message,
knowing reference nearby location, such as previously
calculated location, ground station, or airport location, etc.
Works with both airborne and surface position messages.
The reference position shall be with in 180NM (airborne) or 45NM (surface)
of the true position.
Args:
msg (str): even message (28 hexdigits)
msg (string): even message (28 bytes hexadecimal string)
lat_ref: previous known latitude
lon_ref: previous known longitude
@ -182,9 +103,6 @@ def position_with_ref(msg: str, lat_ref: float, lon_ref: float) -> tuple[float,
tc = typecode(msg)
if tc is None:
raise RuntimeError("incorrect or inconsistent message types")
if 5 <= tc <= 8:
return surface_position_with_ref(msg, lat_ref, lon_ref)
@ -192,22 +110,22 @@ def position_with_ref(msg: str, lat_ref: float, lon_ref: float) -> tuple[float,
return airborne_position_with_ref(msg, lat_ref, lon_ref)
else:
raise RuntimeError("incorrect or inconsistent message types")
raise RuntimeError("incorrect or inconsistant message types")
def altitude(msg: str) -> None | float:
"""Decode aircraft altitude.
def altitude(msg):
"""Decode aircraft altitude
Args:
msg (str): 28 hexdigits string
msg (string): 28 bytes hexadecimal message string
Returns:
int: altitude in feet
"""
tc = typecode(msg)
if tc is None or tc < 5 or tc == 19 or tc > 22:
if tc < 5 or tc == 19 or tc > 22:
raise RuntimeError("%s: Not a position message" % msg)
elif tc >= 5 and tc <= 8:
@ -219,67 +137,61 @@ def altitude(msg: str) -> None | float:
return altitude05(msg)
def velocity(
msg: str, source: bool = False
) -> None | tuple[None | float, None | float, None | int, str]:
def velocity(msg, rtn_sources=False):
"""Calculate the speed, heading, and vertical rate
(handles both airborne or surface message).
(handles both airborne or surface message)
Args:
msg (str): 28 hexdigits string
source (boolean): Include direction and vertical rate sources in return.
Default to False.
If set to True, the function will return six value instead of four.
msg (string): 28 bytes hexadecimal message string
rtn_source (boolean): If the function will return
the sources for direction of travel and vertical
rate. This will change the return value from a four
element array to a six element array.
Returns:
int, float, int, string, [string], [string]:
- Speed (kt)
- Angle (degree), either ground track or heading
- Vertical rate (ft/min)
- Speed type ('GS' for ground speed, 'AS' for airspeed)
- [Optional] Direction source ('TRUE_NORTH' or 'MAGNETIC_NORTH')
- [Optional] Vertical rate source ('BARO' or 'GNSS')
For surface messages, vertical rate and its respective sources are set
to None.
(int, float, int, string, string, string): speed (kt),
ground track or heading (degree),
rate of climb/descent (ft/min), speed type
('GS' for ground speed, 'AS' for airspeed),
direction source ('true_north' for ground track / true north
as refrence, 'mag_north' for magnetic north as reference),
rate of climb/descent source ('Baro' for barometer, 'GNSS'
for GNSS constellation).
In the case of surface messages, None will be put in place
for vertical rate and its respective sources.
"""
tc = typecode(msg)
error = "incorrect or inconsistent message types, expecting 4<TC<9 or TC=19"
if tc is None:
raise RuntimeError(error)
if 5 <= tc <= 8:
return surface_velocity(msg, source)
if 5 <= typecode(msg) <= 8:
return surface_velocity(msg, rtn_sources)
elif tc == 19:
return airborne_velocity(msg, source)
elif typecode(msg) == 19:
return airborne_velocity(msg, rtn_sources)
else:
raise RuntimeError(error)
raise RuntimeError(
"incorrect or inconsistant message types, expecting 4<TC<9 or TC=19"
)
def speed_heading(msg: str) -> None | tuple[None | float, None | float]:
def speed_heading(msg):
"""Get speed and ground track (or heading) from the velocity message
(handles both airborne or surface message)
Args:
msg (str): 28 hexdigits string
msg (string): 28 bytes hexadecimal message string
Returns:
(int, float): speed (kt), ground track or heading (degree)
"""
decoded = velocity(msg)
if decoded is None:
return None
spd, trk_or_hdg, rocd, tag = decoded
spd, trk_or_hdg, rocd, tag = velocity(msg)
return spd, trk_or_hdg
def oe_flag(msg: str) -> int:
def oe_flag(msg):
"""Check the odd/even flag. Bit 54, 0 for even, 1 for odd.
Args:
msg (str): 28 hexdigits string
msg (string): 28 bytes hexadecimal message string
Returns:
int: 0 or 1, for even or odd frame
"""
@ -287,11 +199,11 @@ def oe_flag(msg: str) -> int:
return int(msgbin[53])
def version(msg: str) -> int:
def version(msg):
"""ADS-B Version
Args:
msg (str): 28 hexdigits string, TC = 31
msg (string): 28 bytes hexadecimal message string, TC = 31
Returns:
int: version number
@ -309,15 +221,13 @@ def version(msg: str) -> int:
return version
def nuc_p(msg: str) -> tuple[int, None | float, None | int, None | int]:
"""Calculate NUCp, Navigation Uncertainty Category - Position
(ADS-B version 1)
def nuc_p(msg):
"""Calculate NUCp, Navigation Uncertainty Category - Position (ADS-B version 1)
Args:
msg (str): 28 hexdigits string,
msg (string): 28 bytes hexadecimal message string,
Returns:
int: NUCp, Navigation Uncertainty Category (position)
int: Horizontal Protection Limit
int: 95% Containment Radius - Horizontal (meters)
int: 95% Containment Radius - Vertical (meters)
@ -325,7 +235,7 @@ def nuc_p(msg: str) -> tuple[int, None | float, None | int, None | int]:
"""
tc = typecode(msg)
if tc is None or tc < 5 or tc is None or tc > 22:
if typecode(msg) < 5 or typecode(msg) > 22:
raise RuntimeError(
"%s: Not a surface position message (5<TC<8), \
airborne position message (8<TC<19), \
@ -333,36 +243,27 @@ def nuc_p(msg: str) -> tuple[int, None | float, None | int, None | int]:
% msg
)
try:
NUCp = uncertainty.TC_NUCp_lookup[tc]
index = uncertainty.NUCp.get(NUCp, None)
if index is not None:
HPL = index["HPL"]
RCu = index["RCu"]
RCv = index["RCv"]
else:
HPL = uncertainty.NUCp[NUCp]["HPL"]
RCu = uncertainty.NUCp[NUCp]["RCu"]
RCv = uncertainty.NUCp[NUCp]["RCv"]
except KeyError:
HPL, RCu, RCv = uncertainty.NA, uncertainty.NA, uncertainty.NA
if tc in [20, 21]:
RCv = uncertainty.NA
# RCv only available for GNSS height
if tc == 20:
RCv = 4
elif tc == 21:
RCv = 15
return NUCp, HPL, RCu, RCv
return HPL, RCu, RCv
def nuc_v(msg: str) -> tuple[int, None | float, None | float]:
"""Calculate NUCv, Navigation Uncertainty Category - Velocity
(ADS-B version 1)
def nuc_v(msg):
"""Calculate NUCv, Navigation Uncertainty Category - Velocity (ADS-B version 1)
Args:
msg (str): 28 hexdigits string,
msg (string): 28 bytes hexadecimal message string,
Returns:
int: NUCv, Navigation Uncertainty Category (velocity)
int or string: 95% Horizontal Velocity Error
int or string: 95% Vertical Velocity Error
"""
@ -375,31 +276,28 @@ def nuc_v(msg: str) -> tuple[int, None | float, None | float]:
msgbin = common.hex2bin(msg)
NUCv = common.bin2int(msgbin[42:45])
index = uncertainty.NUCv.get(NUCv, None)
if index is not None:
HVE = index["HVE"]
VVE = index["VVE"]
else:
try:
HVE = uncertainty.NUCv[NUCv]["HVE"]
VVE = uncertainty.NUCv[NUCv]["VVE"]
except KeyError:
HVE, VVE = uncertainty.NA, uncertainty.NA
return NUCv, HVE, VVE
return HVE, VVE
def nic_v1(msg: str, NICs: int) -> tuple[int, None | float, None | float]:
def nic_v1(msg, NICs):
"""Calculate NIC, navigation integrity category, for ADS-B version 1
Args:
msg (str): 28 hexdigits string
msg (string): 28 bytes hexadecimal message string
NICs (int or string): NIC supplement
Returns:
int: NIC, Navigation Integrity Category
int or string: Horizontal Radius of Containment
int or string: Vertical Protection Limit
"""
tc = typecode(msg)
if tc is None or tc < 5 or tc > 22:
if typecode(msg) < 5 or typecode(msg) > 22:
raise RuntimeError(
"%s: Not a surface position message (5<TC<8), \
airborne position message (8<TC<19), \
@ -407,37 +305,33 @@ def nic_v1(msg: str, NICs: int) -> tuple[int, None | float, None | float]:
% msg
)
tc = typecode(msg)
NIC = uncertainty.TC_NICv1_lookup[tc]
if isinstance(NIC, dict):
NIC = NIC[NICs]
d_index = uncertainty.NICv1.get(NIC, None)
try:
Rc = uncertainty.NICv1[NIC][NICs]["Rc"]
VPL = uncertainty.NICv1[NIC][NICs]["VPL"]
except KeyError:
Rc, VPL = uncertainty.NA, uncertainty.NA
if d_index is not None:
index = d_index.get(NICs, None)
if index is not None:
Rc = index["Rc"]
VPL = index["VPL"]
return NIC, Rc, VPL
return Rc, VPL
def nic_v2(msg: str, NICa: int, NICbc: int) -> tuple[int | None, int | None]:
def nic_v2(msg, NICa, NICbc):
"""Calculate NIC, navigation integrity category, for ADS-B version 2
Args:
msg (str): 28 hexdigits string
msg (string): 28 bytes hexadecimal message string
NICa (int or string): NIC supplement - A
NICbc (int or string): NIC supplement - B or C
NICbc (int or srting): NIC supplement - B or C
Returns:
int: NIC, Navigation Integrity Category
int or string: Horizontal Radius of Containment
"""
tc = typecode(msg)
if tc is None or tc < 5 or tc > 22:
if typecode(msg) < 5 or typecode(msg) > 22:
raise RuntimeError(
"%s: Not a surface position message (5<TC<8), \
airborne position message (8<TC<19), \
@ -445,6 +339,7 @@ def nic_v2(msg: str, NICa: int, NICbc: int) -> tuple[int | None, int | None]:
% msg
)
tc = typecode(msg)
NIC = uncertainty.TC_NICv2_lookup[tc]
if 20 <= tc <= 22:
@ -455,18 +350,19 @@ def nic_v2(msg: str, NICa: int, NICbc: int) -> tuple[int | None, int | None]:
try:
if isinstance(NIC, dict):
NIC = NIC[NICs]
Rc = uncertainty.NICv2[NIC][NICs]["Rc"]
except KeyError:
return None, None
Rc = uncertainty.NA
return NIC, Rc # type: ignore
return Rc
def nic_s(msg: str) -> int:
def nic_s(msg):
"""Obtain NIC supplement bit, TC=31 message
Args:
msg (str): 28 hexdigits string
msg (string): 28 bytes hexadecimal message string
Returns:
int: NICs number (0 or 1)
@ -484,11 +380,11 @@ def nic_s(msg: str) -> int:
return nic_s
def nic_a_c(msg: str) -> tuple[int, int]:
def nic_a_c(msg):
"""Obtain NICa/c, navigation integrity category supplements a and c
Args:
msg (str): 28 hexdigits string
msg (string): 28 bytes hexadecimal message string
Returns:
(int, int): NICa and NICc number (0 or 1)
@ -507,18 +403,18 @@ def nic_a_c(msg: str) -> tuple[int, int]:
return nic_a, nic_c
def nic_b(msg: str) -> int:
def nic_b(msg):
"""Obtain NICb, navigation integrity category supplement-b
Args:
msg (str): 28 hexdigits string
msg (string): 28 bytes hexadecimal message string
Returns:
int: NICb number (0 or 1)
"""
tc = typecode(msg)
if tc is None or tc < 9 or tc > 18:
if tc < 9 or tc > 18:
raise RuntimeError(
"%s: Not a airborne position message, expecting 8<TC<19" % msg
)
@ -529,18 +425,15 @@ def nic_b(msg: str) -> int:
return nic_b
def nac_p(msg: str) -> tuple[int, int | None, int | None]:
def nac_p(msg):
"""Calculate NACp, Navigation Accuracy Category - Position
Args:
msg (str): 28 hexdigits string, TC = 29 or 31
msg (string): 28 bytes hexadecimal message string, TC = 29 or 31
Returns:
int: NACp, Navigation Accuracy Category (position)
int or string: 95% horizontal accuracy bounds,
Estimated Position Uncertainty
int or string: 95% vertical accuracy bounds,
Vertical Estimated Position Uncertainty
int or string: 95% horizontal accuracy bounds, Estimated Position Uncertainty
int or string: 95% vertical accuracy bounds, Vertical Estimated Position Uncertainty
"""
tc = typecode(msg)
@ -564,21 +457,18 @@ def nac_p(msg: str) -> tuple[int, int | None, int | None]:
except KeyError:
EPU, VEPU = uncertainty.NA, uncertainty.NA
return NACp, EPU, VEPU
return EPU, VEPU
def nac_v(msg: str) -> tuple[int, float | None, float | None]:
def nac_v(msg):
"""Calculate NACv, Navigation Accuracy Category - Velocity
Args:
msg (str): 28 hexdigits string, TC = 19
msg (string): 28 bytes hexadecimal message string, TC = 19
Returns:
int: NACv, Navigation Accuracy Category (velocity)
int or string: 95% horizontal accuracy bounds for velocity,
Horizontal Figure of Merit
int or string: 95% vertical accuracy bounds for velocity,
Vertical Figure of Merit
int or string: 95% horizontal accuracy bounds for velocity, Horizontal Figure of Merit
int or string: 95% vertical accuracy bounds for velocity, Vertical Figure of Merit
"""
tc = typecode(msg)
@ -596,30 +486,25 @@ def nac_v(msg: str) -> tuple[int, float | None, float | None]:
except KeyError:
HFOMr, VFOMr = uncertainty.NA, uncertainty.NA
return NACv, HFOMr, VFOMr
return HFOMr, VFOMr
def sil(
msg: str,
version: None | int,
) -> tuple[float | None, float | None, str]:
def sil(msg, version):
"""Calculate SIL, Surveillance Integrity Level
Args:
msg (str): 28 hexdigits string with TC = 29, 31
msg (string): 28 bytes hexadecimal message string with TC = 29, 31
Returns:
int or string:
Probability of exceeding Horizontal Radius of Containment RCu
int or string:
Probability of exceeding Vertical Integrity Containment Region VPL
int or string: Probability of exceeding Horizontal Radius of Containment RCu
int or string: Probability of exceeding Vertical Integrity Containment Region VPL
string: SIL supplement based on per "hour" or "sample", or 'unknown'
"""
tc = typecode(msg)
if tc not in [29, 31]:
raise RuntimeError(
"%s: Not a target state and status message, \
"%s: Not a target state and status messag, \
or operation status message, expecting TC = 29 or 31"
% msg
)

View File

@ -1,98 +1,8 @@
"""
Decode all-call reply messages, with downlink format 11
Decoding all call replies DF=11
[To be implemented]
"""
from __future__ import annotations
from typing import Callable, TypeVar
from .. import common
T = TypeVar("T")
F = Callable[[str], T]
def _checkdf(func: F[T]) -> F[T]:
"""Ensure downlink format is 11."""
def wrapper(msg: str) -> T:
df = common.df(msg)
if df != 11:
raise RuntimeError(
"Incorrect downlink format, expect 11, got {}".format(df)
)
return func(msg)
return wrapper
@_checkdf
def icao(msg: str) -> None | str:
"""Decode transponder code (ICAO address).
Args:
msg (str): 14 hexdigits string
Returns:
string: ICAO address
"""
return common.icao(msg)
@_checkdf
def interrogator(msg: str) -> str:
"""Decode interrogator identifier code.
Args:
msg (str): 14 hexdigits string
Returns:
int: interrogator identifier code
"""
# the CRC remainder contains the CL and IC field.
# the top three bits are CL field and last four bits are IC field.
remainder = common.crc(msg)
if remainder > 79:
IC = "corrupt IC"
elif remainder < 16:
IC = "II" + str(remainder)
else:
IC = "SI" + str(remainder - 16)
return IC
@_checkdf
def capability(msg: str) -> tuple[int, None | str]:
"""Decode transponder capability.
Args:
msg (str): 14 hexdigits string
Returns:
int, str: transponder capability, description
"""
msgbin = common.hex2bin(msg)
ca = common.bin2int(msgbin[5:8])
if ca == 0:
text = "level 1 transponder"
elif ca == 4:
text = "level 2 transponder, ability to set CA to 7, on ground"
elif ca == 5:
text = "level 2 transponder, ability to set CA to 7, airborne"
elif ca == 6:
text = (
"evel 2 transponder, ability to set CA to 7, "
"either airborne or ground"
)
elif ca == 7:
text = (
"Downlink Request value is not 0, "
"or the Flight Status is 2, 3, 4 or 5, "
"and either airborne or on the ground"
)
else:
text = None
return ca, text
from __future__ import absolute_import, print_function, division
from pyModeS.decoder import common

View File

@ -18,13 +18,16 @@
Common functions for Mode-S decoding
"""
from typing import Optional
from __future__ import absolute_import, print_function, division
import numpy as np
from ... import common
from ...extra import aero
from . import ( # noqa: F401
from pyModeS.extra import aero
from pyModeS.decoder import common
from pyModeS.decoder.bds import (
bds05,
bds06,
bds08,
bds09,
bds10,
bds17,
bds20,
@ -33,26 +36,22 @@ from . import ( # noqa: F401
bds44,
bds45,
bds50,
bds53,
bds60,
bds61,
bds62,
)
def is50or60(
msg: str, spd_ref: float, trk_ref: float, alt_ref: float
) -> Optional[str]:
def is50or60(msg, spd_ref, trk_ref, alt_ref):
"""Use reference ground speed and trk to determine BDS50 and DBS60.
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message string
spd_ref (float): reference speed (ADS-B ground speed), kts
trk_ref (float): reference track (ADS-B track angle), deg
alt_ref (float): reference altitude (ADS-B altitude), ft
Returns:
String or None: BDS version, or possible versions,
or None if nothing matches.
String or None: BDS version, or possible versions, or None if nothing matches.
"""
@ -61,34 +60,25 @@ def is50or60(
vy = v * np.cos(np.radians(angle))
return vx, vy
# message must be both BDS 50 and 60 before processing
if not (bds50.is50(msg) and bds60.is60(msg)):
return None
# --- assuming BDS60 ---
h50 = bds50.trk50(msg)
v50 = bds50.gs50(msg)
if h50 is None or v50 is None:
return "BDS50,BDS60"
h60 = bds60.hdg60(msg)
m60 = bds60.mach60(msg)
i60 = bds60.ias60(msg)
# additional check now knowing the altitude
if (m60 is not None) and (i60 is not None):
ias_ = aero.mach2cas(m60, alt_ref * aero.ft) / aero.kts
if abs(i60 - ias_) > 20:
return "BDS50"
if h60 is None or (m60 is None and i60 is None):
return "BDS50,BDS60"
m60 = np.nan if m60 is None else m60
i60 = np.nan if i60 is None else i60
# --- assuming BDS50 ---
h50 = bds50.trk50(msg)
v50 = bds50.gs50(msg)
if h50 is None or v50 is None:
return "BDS50,BDS60"
XY5 = vxy(v50 * aero.kts, h50)
XY6m = vxy(aero.mach2tas(m60, alt_ref * aero.ft), h60)
XY6i = vxy(aero.cas2tas(i60 * aero.kts, alt_ref * aero.ft), h60)
@ -114,17 +104,15 @@ def is50or60(
return BDS
def infer(msg: str, mrar: bool = False) -> Optional[str]:
def infer(msg, mrar=False):
"""Estimate the most likely BDS code of an message.
Args:
msg (str): 28 hexdigits string
mrar (bool): Also infer MRAR (BDS 44) and MHR (BDS 45).
Defaults to False.
msg (String): 28 bytes hexadecimal message string
mrar (bool): Also infer MRAR (BDS 44) and MHR (BDS 45). Defaults to False.
Returns:
String or None: BDS version, or possible versions,
or None if nothing matches.
String or None: BDS version, or possible versions, or None if nothing matches.
"""
df = common.df(msg)
@ -135,11 +123,9 @@ def infer(msg: str, mrar: bool = False) -> Optional[str]:
# For ADS-B / Mode-S extended squitter
if df == 17:
tc = common.typecode(msg)
if tc is None:
return None
if 1 <= tc <= 4:
return "BDS08" # identification and category
return "BDS08" # indentification and category
if 5 <= tc <= 8:
return "BDS06" # surface movement
if 9 <= tc <= 18:

View File

@ -1,24 +1,20 @@
# ------------------------------------------
# BDS 0,5
# ADS-B TC=9-18
# Airborne position
# Airborn position
# ------------------------------------------
from __future__ import annotations
from datetime import datetime
from ... import common
from __future__ import absolute_import, print_function, division
from pyModeS.decoder import common
def airborne_position(
msg0: str, msg1: str, t0: int | datetime, t1: int | datetime
) -> None | tuple[float, float]:
"""Decode airborne position from a pair of even and odd position message
def airborne_position(msg0, msg1, t0, t1):
"""Decode airborn position from a pair of even and odd position message
Args:
msg0 (string): even message (28 hexdigits)
msg1 (string): odd message (28 hexdigits)
msg0 (string): even message (28 bytes hexadecimal string)
msg1 (string): odd message (28 bytes hexadecimal string)
t0 (int): timestamps for the even message
t1 (int): timestamps for the odd message
@ -40,13 +36,13 @@ def airborne_position(
raise RuntimeError("Both even and odd CPR frames are required.")
# 131072 is 2^17, since CPR lat and lon are 17 bits each.
cprlat_even = common.bin2int(mb0[22:39]) / 131072
cprlon_even = common.bin2int(mb0[39:56]) / 131072
cprlat_odd = common.bin2int(mb1[22:39]) / 131072
cprlon_odd = common.bin2int(mb1[39:56]) / 131072
cprlat_even = common.bin2int(mb0[22:39]) / 131072.0
cprlon_even = common.bin2int(mb0[39:56]) / 131072.0
cprlat_odd = common.bin2int(mb1[22:39]) / 131072.0
cprlon_odd = common.bin2int(mb1[39:56]) / 131072.0
air_d_lat_even = 360 / 60
air_d_lat_odd = 360 / 59
air_d_lat_even = 360.0 / 60
air_d_lat_odd = 360.0 / 59
# compute latitude index 'j'
j = common.floor(59 * cprlat_even - 60 * cprlat_odd + 0.5)
@ -65,36 +61,33 @@ def airborne_position(
return None
# compute ni, longitude index m, and longitude
# (people pass int+int or datetime+datetime)
if t0 > t1: # type: ignore
if t0 > t1:
lat = lat_even
nl = common.cprNL(lat)
ni = max(common.cprNL(lat) - 0, 1)
m = common.floor(cprlon_even * (nl - 1) - cprlon_odd * nl + 0.5)
lon = (360 / ni) * (m % ni + cprlon_even)
lon = (360.0 / ni) * (m % ni + cprlon_even)
else:
lat = lat_odd
nl = common.cprNL(lat)
ni = max(common.cprNL(lat) - 1, 1)
m = common.floor(cprlon_even * (nl - 1) - cprlon_odd * nl + 0.5)
lon = (360 / ni) * (m % ni + cprlon_odd)
lon = (360.0 / ni) * (m % ni + cprlon_odd)
if lon > 180:
lon = lon - 360
return lat, lon
return round(lat, 5), round(lon, 5)
def airborne_position_with_ref(
msg: str, lat_ref: float, lon_ref: float
) -> tuple[float, float]:
def airborne_position_with_ref(msg, lat_ref, lon_ref):
"""Decode airborne position with only one message,
knowing reference nearby location, such as previously calculated location,
ground station, or airport location, etc. The reference position shall
be within 180NM of the true position.
be with in 180NM of the true position.
Args:
msg (str): even message (28 hexdigits)
msg (string): even message (28 bytes hexadecimal string)
lat_ref: previous known latitude
lon_ref: previous known longitude
@ -104,11 +97,11 @@ def airborne_position_with_ref(
mb = common.hex2bin(msg)[32:]
cprlat = common.bin2int(mb[22:39]) / 131072
cprlon = common.bin2int(mb[39:56]) / 131072
cprlat = common.bin2int(mb[22:39]) / 131072.0
cprlon = common.bin2int(mb[39:56]) / 131072.0
i = int(mb[21])
d_lat = 360 / 59 if i else 360 / 60
d_lat = 360.0 / 59 if i else 360.0 / 60
j = common.floor(lat_ref / d_lat) + common.floor(
0.5 + ((lat_ref % d_lat) / d_lat) - cprlat
@ -119,9 +112,9 @@ def airborne_position_with_ref(
ni = common.cprNL(lat) - i
if ni > 0:
d_lon = 360 / ni
d_lon = 360.0 / ni
else:
d_lon = 360
d_lon = 360.0
m = common.floor(lon_ref / d_lon) + common.floor(
0.5 + ((lon_ref % d_lon) / d_lon) - cprlon
@ -129,14 +122,14 @@ def airborne_position_with_ref(
lon = d_lon * (m + cprlon)
return lat, lon
return round(lat, 5), round(lon, 5)
def altitude(msg: str) -> None | int:
def altitude(msg):
"""Decode aircraft altitude
Args:
msg (str): 28 hexdigits string
msg (string): 28 bytes hexadecimal message string
Returns:
int: altitude in feet
@ -144,19 +137,21 @@ def altitude(msg: str) -> None | int:
tc = common.typecode(msg)
if tc is None or tc < 9 or tc == 19 or tc > 22:
raise RuntimeError("%s: Not an airborne position message" % msg)
if tc < 9 or tc == 19 or tc > 22:
raise RuntimeError("%s: Not a airborn position message" % msg)
mb = common.hex2bin(msg)[32:]
altbin = mb[8:20]
if tc < 19:
altcode = altbin[0:6] + "0" + altbin[6:]
alt = common.altitude(altcode)
if alt != -999999:
# barometric altitude
q = mb[15]
if q:
n = common.bin2int(mb[8:15] + mb[16:20])
alt = n * 25 - 1000
else:
alt = None
else:
# GNSS altitude, meters -> feet
alt = common.bin2int(mb[8:20]) * 3.28084
return alt
else:
# return None if altitude is invalid
return None
else:
return common.bin2int(altbin) * 3.28084 # type: ignore

View File

@ -1,30 +1,21 @@
# ------------------------------------------
# BDS 0,6
# ADS-B TC=5-8
# Surface movement
# Surface position
# ------------------------------------------
from __future__ import annotations
from datetime import datetime
from ... import common
from __future__ import absolute_import, print_function, division
from pyModeS.decoder import common
import math
def surface_position(
msg0: str,
msg1: str,
t0: int | datetime,
t1: int | datetime,
lat_ref: float,
lon_ref: float,
) -> None | tuple[float, float]:
def surface_position(msg0, msg1, t0, t1, lat_ref, lon_ref):
"""Decode surface position from a pair of even and odd position message,
the lat/lon of receiver must be provided to yield the correct solution.
Args:
msg0 (string): even message (28 hexdigits)
msg1 (string): odd message (28 hexdigits)
msg0 (string): even message (28 bytes hexadecimal string)
msg1 (string): odd message (28 bytes hexadecimal string)
t0 (int): timestamps for the even message
t1 (int): timestamps for the odd message
lat_ref (float): latitude of the receiver
@ -38,13 +29,13 @@ def surface_position(
msgbin1 = common.hex2bin(msg1)
# 131072 is 2^17, since CPR lat and lon are 17 bits each.
cprlat_even = common.bin2int(msgbin0[54:71]) / 131072
cprlon_even = common.bin2int(msgbin0[71:88]) / 131072
cprlat_odd = common.bin2int(msgbin1[54:71]) / 131072
cprlon_odd = common.bin2int(msgbin1[71:88]) / 131072
cprlat_even = common.bin2int(msgbin0[54:71]) / 131072.0
cprlon_even = common.bin2int(msgbin0[71:88]) / 131072.0
cprlat_odd = common.bin2int(msgbin1[54:71]) / 131072.0
cprlon_odd = common.bin2int(msgbin1[71:88]) / 131072.0
air_d_lat_even = 90 / 60
air_d_lat_odd = 90 / 59
air_d_lat_even = 90.0 / 60
air_d_lat_odd = 90.0 / 59
# compute latitude index 'j'
j = common.floor(59 * cprlat_even - 60 * cprlat_odd + 0.5)
@ -54,8 +45,8 @@ def surface_position(
lat_odd_n = float(air_d_lat_odd * (j % 59 + cprlat_odd))
# solution for north hemisphere
lat_even_s = lat_even_n - 90
lat_odd_s = lat_odd_n - 90
lat_even_s = lat_even_n - 90.0
lat_odd_s = lat_odd_n - 90.0
# chose which solution corrispondes to receiver location
lat_even = lat_even_n if lat_ref > 0 else lat_even_s
@ -66,44 +57,41 @@ def surface_position(
return None
# compute ni, longitude index m, and longitude
# (people pass int+int or datetime+datetime)
if t0 > t1: # type: ignore
if t0 > t1:
lat = lat_even
nl = common.cprNL(lat_even)
ni = max(common.cprNL(lat_even) - 0, 1)
m = common.floor(cprlon_even * (nl - 1) - cprlon_odd * nl + 0.5)
lon = (90 / ni) * (m % ni + cprlon_even)
lon = (90.0 / ni) * (m % ni + cprlon_even)
else:
lat = lat_odd
nl = common.cprNL(lat_odd)
ni = max(common.cprNL(lat_odd) - 1, 1)
m = common.floor(cprlon_even * (nl - 1) - cprlon_odd * nl + 0.5)
lon = (90 / ni) * (m % ni + cprlon_odd)
lon = (90.0 / ni) * (m % ni + cprlon_odd)
# four possible longitude solutions
lons = [lon, lon + 90, lon + 180, lon + 270]
lons = [lon, lon + 90.0, lon + 180.0, lon + 270.0]
# make sure lons are between -180 and 180
lons = [(lon + 180) % 360 - 180 for lon in lons]
lons = [(l + 180) % 360 - 180 for l in lons]
# the closest solution to receiver is the correct one
dls = [abs(lon_ref - lon) for lon in lons]
dls = [abs(lon_ref - l) for l in lons]
imin = min(range(4), key=dls.__getitem__)
lon = lons[imin]
return lat, lon
return round(lat, 5), round(lon, 5)
def surface_position_with_ref(
msg: str, lat_ref: float, lon_ref: float
) -> tuple[float, float]:
def surface_position_with_ref(msg, lat_ref, lon_ref):
"""Decode surface position with only one message,
knowing reference nearby location, such as previously calculated location,
ground station, or airport location, etc. The reference position shall
be within 45NM of the true position.
be with in 45NM of the true position.
Args:
msg (str): even message (28 hexdigits)
msg (string): even message (28 bytes hexadecimal string)
lat_ref: previous known latitude
lon_ref: previous known longitude
@ -113,11 +101,11 @@ def surface_position_with_ref(
mb = common.hex2bin(msg)[32:]
cprlat = common.bin2int(mb[22:39]) / 131072
cprlon = common.bin2int(mb[39:56]) / 131072
cprlat = common.bin2int(mb[22:39]) / 131072.0
cprlon = common.bin2int(mb[39:56]) / 131072.0
i = int(mb[21])
d_lat = 90 / 59 if i else 90 / 60
d_lat = 90.0 / 59 if i else 90.0 / 60
j = common.floor(lat_ref / d_lat) + common.floor(
0.5 + ((lat_ref % d_lat) / d_lat) - cprlat
@ -128,9 +116,9 @@ def surface_position_with_ref(
ni = common.cprNL(lat) - i
if ni > 0:
d_lon = 90 / ni
d_lon = 90.0 / ni
else:
d_lon = 90
d_lon = 90.0
m = common.floor(lon_ref / d_lon) + common.floor(
0.5 + ((lon_ref % d_lon) / d_lon) - cprlon
@ -138,32 +126,27 @@ def surface_position_with_ref(
lon = d_lon * (m + cprlon)
return lat, lon
return round(lat, 5), round(lon, 5)
def surface_velocity(
msg: str, source: bool = False
) -> tuple[None | float, None | float, int, str]:
"""Decode surface velocity from a surface position message
def surface_velocity(msg, rtn_sources=False):
"""Decode surface velocity from from a surface position message
Args:
msg (str): 28 hexdigits string
source (boolean): Include direction and vertical rate sources in return.
Default to False.
If set to True, the function will return six value instead of four.
msg (string): 28 bytes hexadecimal message string
rtn_source (boolean): If the function will return
the sources for direction of travel and vertical
rate. This will change the return value from a four
element array to a six element array.
Returns:
int, float, int, string, [string], [string]:
- Speed (kt)
- Angle (degree), ground track
- Vertical rate, always 0
- Speed type ('GS' for ground speed, 'AS' for airspeed)
- [Optional] Direction source ('TRUE_NORTH')
- [Optional] Vertical rate source (None)
(int, float, int, string, string, None): speed (kt),
ground track (degree), None for rate of climb/descend (ft/min),
and speed type ('GS' for ground speed), direction source
('true_north' for ground track / true north as reference),
None rate of climb/descent source.
"""
tc = common.typecode(msg)
if tc is None or tc < 5 or tc > 8:
if common.typecode(msg) < 5 or common.typecode(msg) > 8:
raise RuntimeError("%s: Not a surface message, expecting 5<TC<8" % msg)
mb = common.hex2bin(msg)[32:]
@ -171,27 +154,29 @@ def surface_velocity(
# ground track
trk_status = int(mb[12])
if trk_status == 1:
trk = common.bin2int(mb[13:20]) * 360 / 128
trk = common.bin2int(mb[13:20]) * 360.0 / 128.0
trk = round(trk, 1)
else:
trk = None
# ground movement / speed
# ground movment / speed
mov = common.bin2int(mb[5:12])
if mov == 0 or mov > 124:
spd = None
elif mov == 1:
spd = 0.0
spd = 0
elif mov == 124:
spd = 175.0
spd = 175
else:
mov_lb = [2, 9, 13, 39, 94, 109, 124]
kts_lb: list[float] = [0.125, 1, 2, 15, 70, 100, 175]
step: list[float] = [0.125, 0.25, 0.5, 1, 2, 5]
i = next(m[0] for m in enumerate(mov_lb) if m[1] > mov)
spd = kts_lb[i - 1] + (mov - mov_lb[i - 1]) * step[i - 1]
movs = [2, 9, 13, 39, 94, 109, 124]
kts = [0.125, 1, 2, 15, 70, 100, 175]
i = next(m[0] for m in enumerate(movs) if m[1] > mov)
step = (kts[i] - kts[i - 1]) * 1.0 / (movs[i] - movs[i - 1])
spd = kts[i - 1] + (mov - movs[i - 1]) * step
spd = round(spd, 2)
if source:
return spd, trk, 0, "GS", "TRUE_NORTH", None # type: ignore
if rtn_sources:
return spd, trk, 0, "GS", "true_north", None
else:
return spd, trk, 0, "GS"

View File

@ -1,24 +1,24 @@
# ------------------------------------------
# BDS 0,8
# ADS-B TC=1-4
# Aircraft identification and category
# Aircraft identitification and category
# ------------------------------------------
from ... import common
from __future__ import absolute_import, print_function, division
from pyModeS.decoder import common
def category(msg: str) -> int:
def category(msg):
"""Aircraft category number
Args:
msg (str): 28 hexdigits string
msg (string): 28 bytes hexadecimal message string
Returns:
int: category number
"""
tc = common.typecode(msg)
if tc is None or tc < 1 or tc > 4:
if common.typecode(msg) < 1 or common.typecode(msg) > 4:
raise RuntimeError("%s: Not a identification message" % msg)
msgbin = common.hex2bin(msg)
@ -26,18 +26,17 @@ def category(msg: str) -> int:
return common.bin2int(mebin[5:8])
def callsign(msg: str) -> str:
def callsign(msg):
"""Aircraft callsign
Args:
msg (str): 28 hexdigits string
msg (string): 28 bytes hexadecimal message string
Returns:
string: callsign
"""
tc = common.typecode(msg)
if tc is None or tc < 1 or tc > 4:
if common.typecode(msg) < 1 or common.typecode(msg) > 4:
raise RuntimeError("%s: Not a identification message" % msg)
chars = "#ABCDEFGHIJKLMNOPQRSTUVWXYZ#####_###############0123456789######"

View File

@ -1,41 +1,37 @@
# ------------------------------------------
# BDS 0,9
# ADS-B TC=19
# Aircraft Airborne velocity
# Aircraft Airborn velocity
# ------------------------------------------
from __future__ import annotations
from __future__ import absolute_import, print_function, division
from pyModeS.decoder import common
import math
from ... import common
def airborne_velocity(
msg: str, source: bool = False
) -> None | tuple[None | int, None | float, None | int, str]:
"""Decode airborne velocity.
def airborne_velocity(msg, rtn_sources=False):
"""Calculate the speed, track (or heading), and vertical rate
Args:
msg (str): 28 hexdigits string
source (boolean): Include direction and vertical rate sources in return.
Default to False.
If set to True, the function will return six value instead of four.
msg (string): 28 bytes hexadecimal message string
rtn_source (boolean): If the function will return
the sources for direction of travel and vertical
rate. This will change the return value from a four
element array to a six element array.
Returns:
int, float, int, string, [string], [string]:
- Speed (kt)
- Angle (degree), either ground track or heading
- Vertical rate (ft/min)
- Speed type ('GS' for ground speed, 'AS' for airspeed)
- [Optional] Direction source ('TRUE_NORTH' or 'MAGNETIC_NORTH')
- [Optional] Vertical rate source ('BARO' or 'GNSS')
(int, float, int, string, string, string): speed (kt),
ground track or heading (degree),
rate of climb/descent (ft/min), speed type
('GS' for ground speed, 'AS' for airspeed),
direction source ('true_north' for ground track / true north
as refrence, 'mag_north' for magnetic north as reference),
rate of climb/descent source ('Baro' for barometer, 'GNSS'
for GNSS constellation).
"""
if common.typecode(msg) != 19:
raise RuntimeError(
"%s: Not a airborne velocity message, expecting TC=19" % msg
)
raise RuntimeError("%s: Not a airborne velocity message, expecting TC=19" % msg)
mb = common.hex2bin(msg)[32:]
@ -44,25 +40,14 @@ def airborne_velocity(
if common.bin2int(mb[14:24]) == 0 or common.bin2int(mb[25:35]) == 0:
return None
trk_or_hdg: None | float
spd: None | float
if subtype in (1, 2):
v_ew = common.bin2int(mb[14:24])
v_ns = common.bin2int(mb[25:35])
if v_ew == 0 or v_ns == 0:
spd = None
trk_or_hdg = None
vs = None
else:
v_ew_sign = -1 if mb[13] == "1" else 1
v_ew = v_ew - 1 # east-west velocity
v_ew = common.bin2int(mb[14:24]) - 1 # east-west velocity
if subtype == 2: # Supersonic
v_ew *= 4
v_ns_sign = -1 if mb[24] == "1" else 1
v_ns = v_ns - 1 # north-south velocity
v_ns = common.bin2int(mb[25:35]) - 1 # north-south velocity
if subtype == 2: # Supersonic
v_ns *= 4
@ -76,66 +61,56 @@ def airborne_velocity(
trk = math.degrees(trk) # convert to degrees
trk = trk if trk >= 0 else trk + 360 # no negative val
trk_or_hdg = trk
spd_type = "GS"
dir_type = "TRUE_NORTH"
tag = "GS"
trk_or_hdg = round(trk, 2)
dir_type = "true_north"
else:
if mb[13] == "0":
hdg = None
else:
hdg = common.bin2int(mb[14:24]) / 1024 * 360.0
hdg = common.bin2int(mb[14:24]) / 1024.0 * 360.0
hdg = round(hdg, 2)
trk_or_hdg = hdg
spd = common.bin2int(mb[25:35])
spd = None if spd == 0 else spd - 1
if subtype == 4 and spd is not None: # Supersonic
if subtype == 4: # Supersonic
spd *= 4
if mb[24] == "0":
spd_type = "IAS"
tag = "IAS"
else:
spd_type = "TAS"
tag = "TAS"
dir_type = "MAGNETIC_NORTH"
dir_type = "mag_north"
vr_source = "GNSS" if mb[35] == "0" else "BARO"
vr_source = "GNSS" if mb[35] == "0" else "Baro"
vr_sign = -1 if mb[36] == "1" else 1
vr = common.bin2int(mb[37:46])
vs = None if vr == 0 else int(vr_sign * (vr - 1) * 64)
rocd = None if vr == 0 else int(vr_sign * (vr - 1) * 64)
if source:
return ( # type: ignore
spd,
trk_or_hdg,
vs,
spd_type,
dir_type,
vr_source,
)
if rtn_sources:
return spd, trk_or_hdg, rocd, tag, dir_type, vr_source
else:
return spd, trk_or_hdg, vs, spd_type
return spd, trk_or_hdg, rocd, tag
def altitude_diff(msg: str) -> None | float:
"""Decode the differece between GNSS and barometric altitude.
def altitude_diff(msg):
"""Decode the differece between GNSS and barometric altitude
Args:
msg (str): 28 hexdigits string, TC=19
msg (string): 28 bytes hexadecimal message string, TC=19
Returns:
int: Altitude difference in feet. Negative value indicates GNSS altitude
int: Altitude difference in ft. Negative value indicates GNSS altitude
below barometric altitude.
"""
tc = common.typecode(msg)
if tc is None or tc != 19:
raise RuntimeError(
"%s: Not a airborne velocity message, expecting TC=19" % msg
)
if tc != 19:
raise RuntimeError("%s: Not a airborne velocity message, expecting TC=19" % msg)
msgbin = common.hex2bin(msg)
sign = -1 if int(msgbin[80]) else 1

View File

@ -3,51 +3,51 @@
# Data link capability report
# ------------------------------------------
from ... import common
from __future__ import absolute_import, print_function, division
from pyModeS.decoder.common import hex2bin, bin2int, data, allzeros
def is10(msg: str) -> bool:
def is10(msg):
"""Check if a message is likely to be BDS code 1,0
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message string
Returns:
bool: True or False
"""
if common.allzeros(msg):
if allzeros(msg):
return False
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
# first 8 bits must be 0x10
if d[0:8] != "00010000":
return False
# bit 10 to 14 are reserved
if common.bin2int(d[9:14]) != 0:
if bin2int(d[9:14]) != 0:
return False
# overlay capability conflict
if d[14] == "1" and common.bin2int(d[16:23]) < 5:
# overlay capabilty conflict
if d[14] == "1" and bin2int(d[16:23]) < 5:
return False
if d[14] == "0" and common.bin2int(d[16:23]) > 4:
if d[14] == "0" and bin2int(d[16:23]) > 4:
return False
return True
def ovc10(msg: str) -> int:
def ovc10(msg):
"""Return the overlay control capability
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message string
Returns:
int: Whether the transponder is OVC capable
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
return int(d[14])

View File

@ -3,27 +3,27 @@
# Common usage GICB capability report
# ------------------------------------------
from typing import List
from ... import common
from __future__ import absolute_import, print_function, division
from pyModeS.decoder.common import hex2bin, bin2int, data, allzeros
def is17(msg: str) -> bool:
def is17(msg):
"""Check if a message is likely to be BDS code 1,7
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message string
Returns:
bool: True or False
"""
if common.allzeros(msg):
if allzeros(msg):
return False
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if common.bin2int(d[24:56]) != 0:
if bin2int(d[28:56]) != 0:
return False
caps = cap17(msg)
@ -40,14 +40,14 @@ def is17(msg: str) -> bool:
return True
def cap17(msg: str) -> List[str]:
def cap17(msg):
"""Extract capacities from BDS 1,7 message
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message string
Returns:
list: list of supported BDS codes
list: list of suport BDS codes
"""
allbds = [
"05",
@ -74,10 +74,14 @@ def cap17(msg: str) -> List[str]:
"56",
"5F",
"60",
"NA",
"NA",
"E1",
"E2",
]
d = common.hex2bin(common.data(msg))
idx = [i for i, v in enumerate(d[:24]) if v == "1"]
capacity = ["BDS" + allbds[i] for i in idx]
d = hex2bin(data(msg))
idx = [i for i, v in enumerate(d[:28]) if v == "1"]
capacity = ["BDS" + allbds[i] for i in idx if allbds[i] is not "NA"]
return capacity

View File

@ -3,58 +3,57 @@
# Aircraft identification
# ------------------------------------------
from ... import common
from __future__ import absolute_import, print_function, division
from pyModeS.decoder.common import hex2bin, bin2int, data, allzeros
def is20(msg: str) -> bool:
def is20(msg):
"""Check if a message is likely to be BDS code 2,0
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message string
Returns:
bool: True or False
"""
if common.allzeros(msg):
if allzeros(msg):
return False
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[0:8] != "00100000":
return False
# allow empty callsign
if common.bin2int(d[8:56]) == 0:
return True
cs = cs20(msg)
if "#" in cs20(msg):
if "#" in cs:
return False
return True
def cs20(msg: str) -> str:
def cs20(msg):
"""Aircraft callsign
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message (BDS40) string
Returns:
string: callsign, max. 8 chars
"""
chars = "#ABCDEFGHIJKLMNOPQRSTUVWXYZ#####_###############0123456789######"
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
cs = ""
cs += chars[common.bin2int(d[8:14])]
cs += chars[common.bin2int(d[14:20])]
cs += chars[common.bin2int(d[20:26])]
cs += chars[common.bin2int(d[26:32])]
cs += chars[common.bin2int(d[32:38])]
cs += chars[common.bin2int(d[38:44])]
cs += chars[common.bin2int(d[44:50])]
cs += chars[common.bin2int(d[50:56])]
cs += chars[bin2int(d[8:14])]
cs += chars[bin2int(d[14:20])]
cs += chars[bin2int(d[20:26])]
cs += chars[bin2int(d[26:32])]
cs += chars[bin2int(d[32:38])]
cs += chars[bin2int(d[38:44])]
cs += chars[bin2int(d[44:50])]
cs += chars[bin2int(d[50:56])]
return cs

View File

@ -3,23 +3,24 @@
# ACAS active resolution advisory
# ------------------------------------------
from ... import common
from __future__ import absolute_import, print_function, division
from pyModeS.decoder.common import hex2bin, bin2int, data, allzeros
def is30(msg: str) -> bool:
"""Check if a message is likely to be BDS code 3,0
def is30(msg):
"""Check if a message is likely to be BDS code 2,0
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message string
Returns:
bool: True or False
"""
if common.allzeros(msg):
if allzeros(msg):
return False
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[0:8] != "00110000":
return False
@ -29,7 +30,7 @@ def is30(msg: str) -> bool:
return False
# reserved for ACAS III, in far future
if common.bin2int(d[15:22]) >= 48:
if bin2int(d[15:22]) >= 48:
return False
return True

View File

@ -3,122 +3,119 @@
# Selected vertical intention
# ------------------------------------------
from __future__ import absolute_import, print_function, division
import warnings
from typing import Optional
from ... import common
from pyModeS.decoder.common import hex2bin, bin2int, data, allzeros, wrongstatus
def is40(msg: str) -> bool:
def is40(msg):
"""Check if a message is likely to be BDS code 4,0
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message string
Returns:
bool: True or False
"""
if common.allzeros(msg):
if allzeros(msg):
return False
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
# status bit 1, 14, and 27
if common.wrongstatus(d, 1, 2, 13):
if wrongstatus(d, 1, 2, 13):
return False
if common.wrongstatus(d, 14, 15, 26):
if wrongstatus(d, 14, 15, 26):
return False
if common.wrongstatus(d, 27, 28, 39):
if wrongstatus(d, 27, 28, 39):
return False
if common.wrongstatus(d, 48, 49, 51):
if wrongstatus(d, 48, 49, 51):
return False
if common.wrongstatus(d, 54, 55, 56):
if wrongstatus(d, 54, 55, 56):
return False
# bits 40-47 and 52-53 shall all be zero
if common.bin2int(d[39:47]) != 0:
if bin2int(d[39:47]) != 0:
return False
if common.bin2int(d[51:53]) != 0:
if bin2int(d[51:53]) != 0:
return False
return True
def selalt40mcp(msg: str) -> Optional[int]:
def selalt40mcp(msg):
"""Selected altitude, MCP/FCU
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message (BDS40) string
Returns:
int: altitude in feet
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[0] == "0":
return None
alt = common.bin2int(d[1:13]) * 16 # ft
alt = bin2int(d[1:13]) * 16 # ft
return alt
def selalt40fms(msg: str) -> Optional[int]:
def selalt40fms(msg):
"""Selected altitude, FMS
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message (BDS40) string
Returns:
int: altitude in feet
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[13] == "0":
return None
alt = common.bin2int(d[14:26]) * 16 # ft
alt = bin2int(d[14:26]) * 16 # ft
return alt
def p40baro(msg: str) -> Optional[float]:
def p40baro(msg):
"""Barometric pressure setting
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message (BDS40) string
Returns:
float: pressure in millibar
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[26] == "0":
return None
p = common.bin2int(d[27:39]) * 0.1 + 800 # millibar
p = bin2int(d[27:39]) * 0.1 + 800 # millibar
return p
def alt40mcp(msg: str) -> Optional[int]:
def alt40mcp(msg):
warnings.warn(
"""alt40mcp() has been renamed to selalt40mcp().
It will be removed in the future.""",
"alt40mcp() has been renamed to selalt40mcp(). It will be removed in the future.",
DeprecationWarning,
)
return selalt40mcp(msg)
def alt40fms(msg: str) -> Optional[int]:
def alt40fms(msg):
warnings.warn(
"""alt40fms() has been renamed to selalt40fms().
It will be removed in the future.""",
"alt40fms() has been renamed to selalt40fms(). It will be removed in the future.",
DeprecationWarning,
)
return selalt40fms(msg)
return selalt40mcp(msg)

View File

@ -3,43 +3,42 @@
# Meteorological routine air report
# ------------------------------------------
from typing import Optional, Tuple
from ... import common
from __future__ import absolute_import, print_function, division
from pyModeS.decoder.common import hex2bin, bin2int, data, allzeros, wrongstatus
def is44(msg: str) -> bool:
def is44(msg):
"""Check if a message is likely to be BDS code 4,4.
Meteorological routine air report
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message string
Returns:
bool: True or False
"""
if common.allzeros(msg):
if allzeros(msg):
return False
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
# status bit 5, 35, 47, 50
if common.wrongstatus(d, 5, 6, 23):
if wrongstatus(d, 5, 6, 23):
return False
if common.wrongstatus(d, 35, 36, 46):
if wrongstatus(d, 35, 36, 46):
return False
if common.wrongstatus(d, 47, 48, 49):
if wrongstatus(d, 47, 48, 49):
return False
if common.wrongstatus(d, 50, 51, 56):
if wrongstatus(d, 50, 51, 56):
return False
# Bits 1-4 indicate source, values > 4 reserved and should not occur
if common.bin2int(d[0:4]) > 4:
if bin2int(d[0:4]) > 4:
return False
vw, dw = wind44(msg)
@ -53,109 +52,111 @@ def is44(msg: str) -> bool:
return True
def wind44(msg: str) -> Tuple[Optional[int], Optional[float]]:
def wind44(msg):
"""Wind speed and direction.
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message string
Returns:
(int, float): speed (kt), direction (degree)
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
status = int(d[4])
if not status:
return None, None
speed = common.bin2int(d[5:14]) # knots
direction = common.bin2int(d[14:23]) * 180 / 256 # degree
speed = bin2int(d[5:14]) # knots
direction = bin2int(d[14:23]) * 180.0 / 256.0 # degree
return speed, direction
return round(speed, 0), round(direction, 1)
def temp44(msg: str) -> Tuple[float, float]:
def temp44(msg):
"""Static air temperature.
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message string
Returns:
float, float: temperature and alternative temperature in Celsius degree.
Note: Two values returns due to what seems to be an inconsistency
Note: Two values returns due to what seems to be an inconsistancy
error in ICAO 9871 (2008) Appendix A-67.
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
sign = int(d[23])
value = common.bin2int(d[24:34])
value = bin2int(d[24:34])
if sign:
value = value - 1024
temp = value * 0.25 # celsius
temp = round(temp, 2)
temp_alternative = value * 0.125 # celsius
temp_alternative = round(temp_alternative, 3)
return temp, temp_alternative
def p44(msg: str) -> Optional[int]:
def p44(msg):
"""Static pressure.
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message string
Returns:
int: static pressure in hPa
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[34] == "0":
return None
p = common.bin2int(d[35:46]) # hPa
p = bin2int(d[35:46]) # hPa
return p
def hum44(msg: str) -> Optional[float]:
def hum44(msg):
"""humidity
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message string
Returns:
float: percentage of humidity, [0 - 100] %
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[49] == "0":
return None
hm = common.bin2int(d[50:56]) * 100 / 64 # %
hm = bin2int(d[50:56]) * 100.0 / 64 # %
return hm
return round(hm, 1)
def turb44(msg: str) -> Optional[int]:
"""Turbulence.
def turb44(msg):
"""Turblence.
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message string
Returns:
int: turbulence level. 0=NIL, 1=Light, 2=Moderate, 3=Severe
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[46] == "0":
return None
turb = common.bin2int(d[47:49])
turb = bin2int(d[47:49])
return turb

View File

@ -3,55 +3,54 @@
# Meteorological hazard report
# ------------------------------------------
from typing import Optional
from ... import common
from __future__ import absolute_import, print_function, division
from pyModeS.decoder.common import hex2bin, bin2int, data, allzeros, wrongstatus
def is45(msg: str) -> bool:
def is45(msg):
"""Check if a message is likely to be BDS code 4,5.
Meteorological hazard report
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message string
Returns:
bool: True or False
"""
if common.allzeros(msg):
if allzeros(msg):
return False
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
# status bit 1, 4, 7, 10, 13, 16, 27, 39
if common.wrongstatus(d, 1, 2, 3):
if wrongstatus(d, 1, 2, 3):
return False
if common.wrongstatus(d, 4, 5, 6):
if wrongstatus(d, 4, 5, 6):
return False
if common.wrongstatus(d, 7, 8, 9):
if wrongstatus(d, 7, 8, 9):
return False
if common.wrongstatus(d, 10, 11, 12):
if wrongstatus(d, 10, 11, 12):
return False
if common.wrongstatus(d, 13, 14, 15):
if wrongstatus(d, 13, 14, 15):
return False
if common.wrongstatus(d, 16, 17, 26):
if wrongstatus(d, 16, 17, 26):
return False
if common.wrongstatus(d, 27, 28, 38):
if wrongstatus(d, 27, 28, 38):
return False
if common.wrongstatus(d, 39, 40, 51):
if wrongstatus(d, 39, 40, 51):
return False
# reserved
if common.bin2int(d[51:56]) != 0:
if bin2int(d[51:56]) != 0:
return False
temp = temp45(msg)
@ -62,148 +61,149 @@ def is45(msg: str) -> bool:
return True
def turb45(msg: str) -> Optional[int]:
def turb45(msg):
"""Turbulence.
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message string
Returns:
int: Turbulence level. 0=NIL, 1=Light, 2=Moderate, 3=Severe
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[0] == "0":
return None
turb = common.bin2int(d[1:3])
turb = bin2int(d[1:3])
return turb
def ws45(msg: str) -> Optional[int]:
def ws45(msg):
"""Wind shear.
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message string
Returns:
int: Wind shear level. 0=NIL, 1=Light, 2=Moderate, 3=Severe
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[3] == "0":
return None
ws = common.bin2int(d[4:6])
ws = bin2int(d[4:6])
return ws
def mb45(msg: str) -> Optional[int]:
def mb45(msg):
"""Microburst.
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message string
Returns:
int: Microburst level. 0=NIL, 1=Light, 2=Moderate, 3=Severe
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[6] == "0":
return None
mb = common.bin2int(d[7:9])
mb = bin2int(d[7:9])
return mb
def ic45(msg: str) -> Optional[int]:
def ic45(msg):
"""Icing.
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message string
Returns:
int: Icing level. 0=NIL, 1=Light, 2=Moderate, 3=Severe
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[9] == "0":
return None
ic = common.bin2int(d[10:12])
ic = bin2int(d[10:12])
return ic
def wv45(msg: str) -> Optional[int]:
def wv45(msg):
"""Wake vortex.
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message string
Returns:
int: Wake vortex level. 0=NIL, 1=Light, 2=Moderate, 3=Severe
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[12] == "0":
return None
ws = common.bin2int(d[13:15])
ws = bin2int(d[13:15])
return ws
def temp45(msg: str) -> Optional[float]:
def temp45(msg):
"""Static air temperature.
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message string
Returns:
float: tmeperature in Celsius degree
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
sign = int(d[16])
value = common.bin2int(d[17:26])
value = bin2int(d[17:26])
if sign:
value = value - 512
temp = value * 0.25 # celsius
temp = round(temp, 1)
return temp
def p45(msg: str) -> Optional[int]:
def p45(msg):
"""Average static pressure.
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message string
Returns:
int: static pressure in hPa
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[26] == "0":
return None
p = common.bin2int(d[27:38]) # hPa
p = bin2int(d[27:38]) # hPa
return p
def rh45(msg: str) -> Optional[int]:
def rh45(msg):
"""Radio height.
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message string
Returns:
int: radio height in ft
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[38] == "0":
return None
rh = common.bin2int(d[39:51]) * 16
rh = bin2int(d[39:51]) * 16
return rh

View File

@ -3,46 +3,45 @@
# Track and turn report
# ------------------------------------------
from typing import Optional
from ... import common
from __future__ import absolute_import, print_function, division
from pyModeS.decoder.common import hex2bin, bin2int, data, allzeros, wrongstatus
def is50(msg: str) -> bool:
def is50(msg):
"""Check if a message is likely to be BDS code 5,0
(Track and turn report)
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message string
Returns:
bool: True or False
"""
if common.allzeros(msg):
if allzeros(msg):
return False
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
# status bit 1, 12, 24, 35, 46
if common.wrongstatus(d, 1, 3, 11):
if wrongstatus(d, 1, 3, 11):
return False
if common.wrongstatus(d, 12, 13, 23):
if wrongstatus(d, 12, 13, 23):
return False
if common.wrongstatus(d, 24, 25, 34):
if wrongstatus(d, 24, 25, 34):
return False
if common.wrongstatus(d, 35, 36, 45):
if wrongstatus(d, 35, 36, 45):
return False
if common.wrongstatus(d, 46, 47, 56):
if wrongstatus(d, 46, 47, 56):
return False
roll = roll50(msg)
if (roll is not None) and abs(roll) > 50:
if (roll is not None) and abs(roll) > 60:
return False
gs = gs50(msg)
@ -59,88 +58,88 @@ def is50(msg: str) -> bool:
return True
def roll50(msg: str) -> Optional[float]:
def roll50(msg):
"""Roll angle, BDS 5,0 message
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message (BDS50) string
Returns:
float: angle in degrees,
negative->left wing down, positive->right wing down
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[0] == "0":
return None
sign = int(d[1]) # 1 -> left wing down
value = common.bin2int(d[2:11])
value = bin2int(d[2:11])
if sign:
value = value - 512
angle = value * 45 / 256 # degree
return angle
angle = value * 45.0 / 256.0 # degree
return round(angle, 1)
def trk50(msg: str) -> Optional[float]:
def trk50(msg):
"""True track angle, BDS 5,0 message
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message (BDS50) string
Returns:
float: angle in degrees to true north (from 0 to 360)
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[11] == "0":
return None
sign = int(d[12]) # 1 -> west
value = common.bin2int(d[13:23])
value = bin2int(d[13:23])
if sign:
value = value - 1024
trk = value * 90 / 512.0
trk = value * 90.0 / 512.0
# convert from [-180, 180] to [0, 360]
if trk < 0:
trk = 360 + trk
return trk
return round(trk, 3)
def gs50(msg: str) -> Optional[float]:
def gs50(msg):
"""Ground speed, BDS 5,0 message
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message (BDS50) string
Returns:
int: ground speed in knots
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[23] == "0":
return None
spd = common.bin2int(d[24:34]) * 2 # kts
spd = bin2int(d[24:34]) * 2 # kts
return spd
def rtrk50(msg: str) -> Optional[float]:
def rtrk50(msg):
"""Track angle rate, BDS 5,0 message
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message (BDS50) string
Returns:
float: angle rate in degrees/second
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[34] == "0":
return None
@ -149,27 +148,27 @@ def rtrk50(msg: str) -> Optional[float]:
return None
sign = int(d[35]) # 1 -> negative value, two's complement
value = common.bin2int(d[36:45])
value = bin2int(d[36:45])
if sign:
value = value - 512
angle = value * 8 / 256 # degree / sec
return angle
angle = value * 8.0 / 256.0 # degree / sec
return round(angle, 3)
def tas50(msg: str) -> Optional[float]:
def tas50(msg):
"""Aircraft true airspeed, BDS 5,0 message
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message (BDS50) string
Returns:
int: true airspeed in knots
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[45] == "0":
return None
tas = common.bin2int(d[46:56]) * 2 # kts
tas = bin2int(d[46:56]) * 2 # kts
return tas

View File

@ -3,42 +3,41 @@
# Air-referenced state vector
# ------------------------------------------
from typing import Optional
from ... import common
from __future__ import absolute_import, print_function, division
from pyModeS.decoder.common import hex2bin, bin2int, data, allzeros, wrongstatus
def is53(msg: str) -> bool:
def is53(msg):
"""Check if a message is likely to be BDS code 5,3
(Air-referenced state vector)
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message string
Returns:
bool: True or False
"""
if common.allzeros(msg):
if allzeros(msg):
return False
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
# status bit 1, 13, 24, 34, 47
if common.wrongstatus(d, 1, 3, 12):
if wrongstatus(d, 1, 3, 12):
return False
if common.wrongstatus(d, 13, 14, 23):
if wrongstatus(d, 13, 14, 23):
return False
if common.wrongstatus(d, 24, 25, 33):
if wrongstatus(d, 24, 25, 33):
return False
if common.wrongstatus(d, 34, 35, 46):
if wrongstatus(d, 34, 35, 46):
return False
if common.wrongstatus(d, 47, 49, 56):
if wrongstatus(d, 47, 49, 56):
return False
ias = ias53(msg)
@ -60,105 +59,105 @@ def is53(msg: str) -> bool:
return True
def hdg53(msg: str) -> Optional[float]:
def hdg53(msg):
"""Magnetic heading, BDS 5,3 message
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message (BDS53) string
Returns:
float: angle in degrees to true north (from 0 to 360)
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[0] == "0":
return None
sign = int(d[1]) # 1 -> west
value = common.bin2int(d[2:12])
value = bin2int(d[2:12])
if sign:
value = value - 1024
hdg = value * 90 / 512 # degree
hdg = value * 90.0 / 512.0 # degree
# convert from [-180, 180] to [0, 360]
if hdg < 0:
hdg = 360 + hdg
return hdg
return round(hdg, 3)
def ias53(msg: str) -> Optional[float]:
def ias53(msg):
"""Indicated airspeed, DBS 5,3 message
Args:
msg (str): 28 hexdigits
msg (String): 28 bytes hexadecimal message
Returns:
int: indicated arispeed in knots
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[12] == "0":
return None
ias = common.bin2int(d[13:23]) # knots
ias = bin2int(d[13:23]) # knots
return ias
def mach53(msg: str) -> Optional[float]:
def mach53(msg):
"""MACH number, DBS 5,3 message
Args:
msg (str): 28 hexdigits
msg (String): 28 bytes hexadecimal message
Returns:
float: MACH number
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[23] == "0":
return None
mach = common.bin2int(d[24:33]) * 0.008
return mach
mach = bin2int(d[24:33]) * 0.008
return round(mach, 3)
def tas53(msg: str) -> Optional[float]:
def tas53(msg):
"""Aircraft true airspeed, BDS 5,3 message
Args:
msg (str): 28 hexdigits
msg (String): 28 bytes hexadecimal message
Returns:
float: true airspeed in knots
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[33] == "0":
return None
tas = common.bin2int(d[34:46]) * 0.5 # kts
return tas
tas = bin2int(d[34:46]) * 0.5 # kts
return round(tas, 1)
def vr53(msg: str) -> Optional[int]:
def vr53(msg):
"""Vertical rate
Args:
msg (str): 28 hexdigits (BDS60) string
msg (String): 28 bytes hexadecimal message (BDS60) string
Returns:
int: vertical rate in feet/minutes
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[46] == "0":
return None
sign = int(d[47]) # 1 -> negative value, two's complement
value = common.bin2int(d[48:56])
value = bin2int(d[48:56])
if value == 0 or value == 255: # all zeros or all ones
return 0

View File

@ -3,42 +3,40 @@
# Heading and speed report
# ------------------------------------------
from typing import Optional
from ... import common
from ...extra import aero
from __future__ import absolute_import, print_function, division
from pyModeS.decoder.common import hex2bin, bin2int, data, allzeros, wrongstatus
def is60(msg: str) -> bool:
def is60(msg):
"""Check if a message is likely to be BDS code 6,0
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message string
Returns:
bool: True or False
"""
if common.allzeros(msg):
if allzeros(msg):
return False
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
# status bit 1, 13, 24, 35, 46
if common.wrongstatus(d, 1, 2, 12):
if wrongstatus(d, 1, 2, 12):
return False
if common.wrongstatus(d, 13, 14, 23):
if wrongstatus(d, 13, 14, 23):
return False
if common.wrongstatus(d, 24, 25, 34):
if wrongstatus(d, 24, 25, 34):
return False
if common.wrongstatus(d, 35, 36, 45):
if wrongstatus(d, 35, 36, 45):
return False
if common.wrongstatus(d, 46, 47, 56):
if wrongstatus(d, 46, 47, 56):
return False
ias = ias60(msg)
@ -57,98 +55,90 @@ def is60(msg: str) -> bool:
if vr_ins is not None and abs(vr_ins) > 6000:
return False
# additional check knowing altitude
if (mach is not None) and (ias is not None) and (common.df(msg) == 20):
alt = common.altcode(msg)
if alt is not None:
ias_ = aero.mach2cas(mach, alt * aero.ft) / aero.kts
if abs(ias - ias_) > 20:
return False
return True
def hdg60(msg: str) -> Optional[float]:
def hdg60(msg):
"""Megnetic heading of aircraft
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message (BDS60) string
Returns:
float: heading in degrees to megnetic north (from 0 to 360)
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[0] == "0":
return None
sign = int(d[1]) # 1 -> west
value = common.bin2int(d[2:12])
value = bin2int(d[2:12])
if sign:
value = value - 1024
hdg = value * 90 / 512 # degree
hdg = value * 90 / 512.0 # degree
# convert from [-180, 180] to [0, 360]
if hdg < 0:
hdg = 360 + hdg
return hdg
return round(hdg, 3)
def ias60(msg: str) -> Optional[float]:
def ias60(msg):
"""Indicated airspeed
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message (BDS60) string
Returns:
int: indicated airspeed in knots
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[12] == "0":
return None
ias = common.bin2int(d[13:23]) # kts
ias = bin2int(d[13:23]) # kts
return ias
def mach60(msg: str) -> Optional[float]:
def mach60(msg):
"""Aircraft MACH number
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message (BDS60) string
Returns:
float: MACH number
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[23] == "0":
return None
mach = common.bin2int(d[24:34]) * 2.048 / 512.0
return mach
mach = bin2int(d[24:34]) * 2.048 / 512.0
return round(mach, 3)
def vr60baro(msg: str) -> Optional[int]:
def vr60baro(msg):
"""Vertical rate from barometric measurement, this value may be very noisy.
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message (BDS60) string
Returns:
int: vertical rate in feet/minutes
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[34] == "0":
return None
sign = int(d[35]) # 1 -> negative value, two's complement
value = common.bin2int(d[36:45])
value = bin2int(d[36:45])
if value == 0 or value == 511: # all zeros or all ones
return 0
@ -159,22 +149,22 @@ def vr60baro(msg: str) -> Optional[int]:
return roc
def vr60ins(msg: str) -> Optional[int]:
"""Vertical rate measurd by onbard equiments (IRS, AHRS)
def vr60ins(msg):
"""Vertical rate messured by onbard equiments (IRS, AHRS)
Args:
msg (str): 28 hexdigits string
msg (String): 28 bytes hexadecimal message (BDS60) string
Returns:
int: vertical rate in feet/minutes
"""
d = common.hex2bin(common.data(msg))
d = hex2bin(data(msg))
if d[45] == "0":
return None
sign = int(d[46]) # 1 -> negative value, two's complement
value = common.bin2int(d[47:56])
value = bin2int(d[47:56])
if value == 0 or value == 511: # all zeros or all ones
return 0

View File

@ -1,87 +0,0 @@
# ------------------------------------------
# BDS 6,1
# ADS-B TC=28
# Aircraft Airborne status
# ------------------------------------------
from ... import common
def is_emergency(msg: str) -> bool:
"""Check if the aircraft is reporting an emergency.
Non-emergencies are either a subtype of zero (no information) or
subtype of one and a value of zero (no emergency).
Subtype = 2 indicates an ACAS RA broadcast, look in BDS 3,0
:param msg: 28 bytes hexadecimal message string
:return: if the aircraft has declared an emergency
"""
if common.typecode(msg) != 28:
raise RuntimeError(
"%s: Not an airborne status message, expecting TC=28" % msg
)
mb = common.hex2bin(msg)[32:]
subtype = common.bin2int(mb[5:8])
if subtype == 2:
raise RuntimeError("%s: Emergency message is ACAS-RA, not implemented")
emergency_state = common.bin2int(mb[8:11])
if subtype == 1 and emergency_state == 1:
return True
else:
return False
def emergency_state(msg: str) -> int:
"""Decode aircraft emergency state.
Value Meaning
----- -----------------------
0 No emergency
1 General emergency
2 Lifeguard/Medical
3 Minimum fuel
4 No communications
5 Unlawful communications
6-7 Reserved
:param msg: 28 bytes hexadecimal message string
:return: emergency state
"""
mb = common.hex2bin(msg)[32:]
subtype = common.bin2int(mb[5:8])
if subtype == 2:
raise RuntimeError("%s: Emergency message is ACAS-RA, not implemented")
emergency_state = common.bin2int(mb[8:11])
return emergency_state
def emergency_squawk(msg: str) -> str:
"""Decode squawk code.
Emergency value 1: squawk 7700.
Emergency value 4: squawk 7600.
Emergency value 5: squawk 7500.
:param msg: 28 bytes hexadecimal message string
:return: aircraft squawk code
"""
if common.typecode(msg) != 28:
raise RuntimeError(
"%s: Not an airborne status message, expecting TC=28" % msg
)
msgbin = common.hex2bin(msg)
# construct the 13 bits Mode A ID code
idcode = msgbin[43:56]
squawk = common.squawk(idcode)
return squawk

View File

@ -1,552 +0,0 @@
# ------------------------------------------
# BDS 6,2
# ADS-B TC=29
# Target State and Status
# ------------------------------------------
from __future__ import annotations
from ... import common
def selected_altitude(msg: str) -> tuple[None | float, str]:
"""Decode selected altitude.
Args:
msg (str): 28 hexdigits string
Returns:
int: Selected altitude (ft)
string: Source ('MCP/FCU' or 'FMS')
"""
if common.typecode(msg) != 29:
raise RuntimeError(
"%s: Not a target state and status message, expecting TC=29" % msg
)
mb = common.hex2bin(msg)[32:]
subtype = common.bin2int(mb[5:7])
if subtype == 0:
raise RuntimeError(
"%s: ADS-B version 1 target state and status message does not"
" contain selected altitude, use target altitude instead" % msg
)
alt = common.bin2int(mb[9:20])
if alt == 0:
return None, "N/A"
alt = (alt - 1) * 32
alt_source = "MCP/FCU" if int(mb[8]) == 0 else "FMS"
return alt, alt_source
def target_altitude(msg: str) -> tuple[None | int, str, str]:
"""Decode target altitude.
Args:
msg (str): 28 hexdigits string
Returns:
int: Target altitude (ft)
string: Source ('MCP/FCU', 'Holding mode' or 'FMS/RNAV')
string: Altitude reference, either pressure altitude or barometric
corrected altitude ('FL' or 'MSL')
"""
if common.typecode(msg) != 29:
raise RuntimeError(
"%s: Not a target state and status message, expecting TC=29" % msg
)
mb = common.hex2bin(msg)[32:]
subtype = common.bin2int(mb[5:7])
if subtype == 1:
raise RuntimeError(
"%s: ADS-B version 2 target state and status message does not"
" contain target altitude, use selected altitude instead" % msg
)
alt_avail = common.bin2int(mb[7:9])
if alt_avail == 0:
return None, "N/A", ""
elif alt_avail == 1:
alt_source = "MCP/FCU"
elif alt_avail == 2:
alt_source = "Holding mode"
else:
alt_source = "FMS/RNAV"
alt_ref = "FL" if int(mb[9]) == 0 else "MSL"
alt = -1000 + common.bin2int(mb[15:25]) * 100
return alt, alt_source, alt_ref
def vertical_mode(msg: str) -> None | int:
"""Decode vertical mode.
Value Meaning
----- -----------------------
1 "Acquiring" mode
2 "Capturing" or "Maintaining" mode
3 Reserved
Args:
msg (str): 28 hexdigits string
Returns:
int: Vertical mode
"""
if common.typecode(msg) != 29:
raise RuntimeError(
"%s: Not a target state and status message, expecting TC=29" % msg
)
mb = common.hex2bin(msg)[32:]
subtype = common.bin2int(mb[5:7])
if subtype == 1:
raise RuntimeError(
"%s: ADS-B version 2 target state and status message does not"
" contain vertical mode, use vnav mode instead" % msg
)
vertical_mode = common.bin2int(mb[13:15])
if vertical_mode == 0:
return None
return vertical_mode
def horizontal_mode(msg: str) -> None | int:
"""Decode horizontal mode.
Value Meaning
----- -----------------------
1 "Acquiring" mode
2 "Capturing" or "Maintaining" mode
3 Reserved
Args:
msg (str): 28 hexdigits string
Returns:
int: Horizontal mode
"""
if common.typecode(msg) != 29:
raise RuntimeError(
"%s: Not a target state and status message, expecting TC=29" % msg
)
mb = common.hex2bin(msg)[32:]
subtype = common.bin2int(mb[5:7])
if subtype == 1:
raise RuntimeError(
"%s: ADS-B version 2 target state and status message does not "
"contain horizontal mode, use lnav mode instead" % msg
)
horizontal_mode = common.bin2int(mb[25:27])
if horizontal_mode == 0:
return None
return horizontal_mode
def selected_heading(msg: str) -> None | float:
"""Decode selected heading.
Args:
msg (str): 28 bytes hexadecimal message string
Returns:
float: Selected heading (degree)
"""
if common.typecode(msg) != 29:
raise RuntimeError(
"%s: Not a target state and status message, expecting TC=29" % msg
)
mb = common.hex2bin(msg)[32:]
subtype = common.bin2int(mb[5:7])
if subtype == 0:
raise RuntimeError(
"%s: ADS-B version 1 target state and status message does not "
"contain selected heading, use target angle instead" % msg
)
if int(mb[29]) == 0:
return None
else:
hdg_sign = int(mb[30])
hdg = (hdg_sign + 1) * common.bin2int(mb[31:39]) * (180 / 256)
return hdg
def target_angle(msg: str) -> tuple[None | int, str, str]:
"""Decode target heading/track angle.
Args:
msg (str): 28 bytes hexadecimal message string
Returns:
int: Target angle (degree)
string: Angle type ('Heading' or 'Track')
string: Source ('MCP/FCU', 'Autopilot Mode' or 'FMS/RNAV')
"""
if common.typecode(msg) != 29:
raise RuntimeError(
"%s: Not a target state and status message, expecting TC=29" % msg
)
mb = common.hex2bin(msg)[32:]
subtype = common.bin2int(mb[5:7])
if subtype == 1:
raise RuntimeError(
"%s: ADS-B version 2 target state and status message does not "
"contain target angle, use selected heading instead" % msg
)
angle_avail = common.bin2int(mb[25:27])
if angle_avail == 0:
return None, "", "N/A"
else:
angle = common.bin2int(mb[27:36])
if angle_avail == 1:
angle_source = "MCP/FCU"
elif angle_avail == 2:
angle_source = "Autopilot mode"
else:
angle_source = "FMS/RNAV"
angle_type = "Heading" if int(mb[36]) else "Track"
return angle, angle_type, angle_source
def baro_pressure_setting(msg: str) -> None | float:
"""Decode barometric pressure setting.
Args:
msg (str): 28 hexdigits string
Returns:
float: Barometric pressure setting (millibars)
"""
if common.typecode(msg) != 29:
raise RuntimeError(
"%s: Not a target state and status message, expecting TC=29" % msg
)
mb = common.hex2bin(msg)[32:]
subtype = common.bin2int(mb[5:7])
if subtype == 0:
raise RuntimeError(
"%s: ADS-B version 1 target state and status message does not "
"contain barometric pressure setting" % msg
)
baro = common.bin2int(mb[20:29])
if baro == 0:
return None
return 800 + (baro - 1) * 0.8
def autopilot(msg) -> None | bool:
"""Decode autopilot engagement.
Args:
msg (str): 28 hexdigits string
Returns:
bool: Autopilot engaged
"""
if common.typecode(msg) != 29:
raise RuntimeError(
"%s: Not a target state and status message, expecting TC=29" % msg
)
mb = common.hex2bin(msg)[32:]
subtype = common.bin2int(mb[5:7])
if subtype == 0:
raise RuntimeError(
"%s: ADS-B version 1 target state and status message does not "
"contain autopilot engagement" % msg
)
if int(mb[46]) == 0:
return None
autopilot = True if int(mb[47]) == 1 else False
return autopilot
def vnav_mode(msg) -> None | bool:
"""Decode VNAV mode.
Args:
msg (str): 28 hexdigits string
Returns:
bool: VNAV mode engaged
"""
if common.typecode(msg) != 29:
raise RuntimeError(
"%s: Not a target state and status message, expecting TC=29" % msg
)
mb = common.hex2bin(msg)[32:]
subtype = common.bin2int(mb[5:7])
if subtype == 0:
raise RuntimeError(
"%s: ADS-B version 1 target state and status message does not "
"contain vnav mode, use vertical mode instead" % msg
)
if int(mb[46]) == 0:
return None
vnav_mode = True if int(mb[48]) == 1 else False
return vnav_mode
def altitude_hold_mode(msg) -> None | bool:
"""Decode altitude hold mode.
Args:
msg (str): 28 hexdigits string
Returns:
bool: Altitude hold mode engaged
"""
if common.typecode(msg) != 29:
raise RuntimeError(
"%s: Not a target state and status message, expecting TC=29" % msg
)
mb = common.hex2bin(msg)[32:]
subtype = common.bin2int(mb[5:7])
if subtype == 0:
raise RuntimeError(
"%s: ADS-B version 1 target state and status message does not "
"contain altitude hold mode" % msg
)
if int(mb[46]) == 0:
return None
alt_hold_mode = True if int(mb[49]) == 1 else False
return alt_hold_mode
def approach_mode(msg) -> None | bool:
"""Decode approach mode.
Args:
msg (str): 28 hexdigits string
Returns:
bool: Approach mode engaged
"""
if common.typecode(msg) != 29:
raise RuntimeError(
"%s: Not a target state and status message, expecting TC=29" % msg
)
mb = common.hex2bin(msg)[32:]
subtype = common.bin2int(mb[5:7])
if subtype == 0:
raise RuntimeError(
"%s: ADS-B version 1 target state and status message does not "
"contain approach mode" % msg
)
if int(mb[46]) == 0:
return None
app_mode = True if int(mb[51]) == 1 else False
return app_mode
def lnav_mode(msg) -> None | bool:
"""Decode LNAV mode.
Args:
msg (str): 28 hexdigits string
Returns:
bool: LNAV mode engaged
"""
if common.typecode(msg) != 29:
raise RuntimeError(
"%s: Not a target state and status message, expecting TC=29" % msg
)
mb = common.hex2bin(msg)[32:]
subtype = common.bin2int(mb[5:7])
if subtype == 0:
raise RuntimeError(
"%s: ADS-B version 1 target state and status message does not "
"contain lnav mode, use horizontal mode instead" % msg
)
if int(mb[46]) == 0:
return None
lnav_mode = True if int(mb[53]) == 1 else False
return lnav_mode
def tcas_operational(msg) -> None | bool:
"""Decode TCAS/ACAS operational.
Args:
msg (str): 28 bytes hexadecimal message string
Returns:
bool: TCAS/ACAS operational
"""
if common.typecode(msg) != 29:
raise RuntimeError(
"%s: Not a target state and status message, expecting TC=29" % msg
)
mb = common.hex2bin(msg)[32:]
subtype = common.bin2int(mb[5:7])
if subtype == 0:
tcas = True if int(mb[51]) == 0 else False
else:
tcas = True if int(mb[52]) == 1 else False
return tcas
def tcas_ra(msg) -> bool:
"""Decode TCAS/ACAS Resolution advisory.
Args:
msg (str): 28 bytes hexadecimal message string
Returns:
bool: TCAS/ACAS Resolution advisory active
"""
if common.typecode(msg) != 29:
raise RuntimeError(
"%s: Not a target state and status message, expecting TC=29" % msg
)
mb = common.hex2bin(msg)[32:]
subtype = common.bin2int(mb[5:7])
if subtype == 1:
raise RuntimeError(
"%s: ADS-B version 2 target state and status message does not "
"contain TCAS/ACAS RA" % msg
)
tcas_ra = True if int(mb[52]) == 1 else False
return tcas_ra
def emergency_status(msg) -> int:
"""Decode aircraft emergency status.
Value Meaning
----- -----------------------
0 No emergency
1 General emergency
2 Lifeguard/medical emergency
3 Minimum fuel
4 No communications
5 Unlawful interference
6 Downed aircraft
7 Reserved
Args:
msg (str): 28 bytes hexadecimal message string
Returns:
int: Emergency status
"""
if common.typecode(msg) != 29:
raise RuntimeError(
"%s: Not a target state and status message, expecting TC=29" % msg
)
mb = common.hex2bin(msg)[32:]
subtype = common.bin2int(mb[5:7])
if subtype == 1:
raise RuntimeError(
"%s: ADS-B version 2 target state and status message does not "
"contain emergency status" % msg
)
return common.bin2int(mb[53:56])

View File

@ -5,8 +5,7 @@ cdef unsigned char int_to_char(unsigned char i)
cpdef str hex2bin(str hexstr)
cpdef long bin2int(str binstr)
cpdef long hex2int(str hexstr)
cpdef str bin2hex(str binstr)
cpdef long hex2int(str binstr)
cpdef unsigned char df(str msg)
cpdef long crc(str msg, bint encode=*)
@ -17,12 +16,8 @@ cpdef bint is_icao_assigned(str icao)
cpdef int typecode(str msg)
cpdef int cprNL(double lat)
cpdef str idcode(str msg)
cpdef str squawk(str binstr)
cpdef int altcode(str msg)
cpdef int altitude(str binstr)
cpdef str data(str msg)
cdef str data(str msg)
cpdef bint allzeros(str msg)

View File

@ -5,7 +5,7 @@ from cpython cimport array
from cpython.bytes cimport PyBytes_GET_SIZE
from cpython.bytearray cimport PyByteArray_GET_SIZE
from libc.math cimport abs, cos, acos, fabs, M_PI as pi, floor as c_floor
from libc.math cimport cos, acos, fabs, M_PI as pi, floor as c_floor
cdef int char_to_int(unsigned char binstr):
@ -25,7 +25,7 @@ cdef unsigned char int_to_char(unsigned char i):
@cython.boundscheck(False)
@cython.overflowcheck(False)
cpdef str hex2bin(str hexstr):
"""Convert a hexadecimal string to binary string, with zero fillings."""
"""Convert a hexdecimal string to binary string, with zero fillings."""
# num_of_bits = len(hexstr) * 4
cdef hexbytes = bytes(hexstr.encode())
cdef Py_ssize_t len_hexstr = PyBytes_GET_SIZE(hexbytes)
@ -66,14 +66,9 @@ cpdef long hex2int(str hexstr):
cumul = 16*cumul + char_to_int(v_hexstr[i])
return cumul
@cython.boundscheck(False)
cpdef str bin2hex(str binstr):
return "{0:X}".format(int(binstr, 2))
@cython.boundscheck(False)
cpdef unsigned char df(str msg):
"""Decode Downlink Format value, bits 1 to 5."""
"""Decode Downlink Format vaule, bits 1 to 5."""
cdef str dfbin = hex2bin(msg[:2])
# return min(bin2int(dfbin[0:5]), 24)
cdef long df = bin2int(dfbin[0:5])
@ -160,7 +155,17 @@ cpdef long floor(double x):
return <long> c_floor(x)
cpdef str icao(str msg):
"""Calculate the ICAO address from an Mode-S message."""
"""Calculate the ICAO address from an Mode-S message.
Applicable only with DF4, DF5, DF20, DF21 messages.
Args:
msg (String): 28 bytes hexadecimal message string
Returns:
String: ICAO address in 6 bytes hexadecimal string
"""
cdef unsigned char DF = df(msg)
cdef long c0, c1
@ -207,7 +212,14 @@ cpdef bint is_icao_assigned(str icao):
@cython.boundscheck(False)
@cython.wraparound(False)
cpdef int typecode(str msg):
"""Type code of ADS-B message"""
"""Type code of ADS-B message
Args:
msg (string): 28 bytes hexadecimal message string
Returns:
int: type code number
"""
if df(msg) not in (17, 18):
return -1
# return None
@ -219,16 +231,18 @@ cpdef int typecode(str msg):
cpdef int cprNL(double lat):
"""NL() function in CPR decoding."""
if abs(lat) <= 1e-08:
if lat == 0:
return 59
elif abs(abs(lat) - 87) <= 1e-08 + 1e-05 * 87:
if lat == 87 or lat == -87:
return 2
elif lat > 87 or lat < -87:
if lat > 87 or lat < -87:
return 1
cdef int nz = 15
cdef double a = 1 - cos(pi / (2 * nz))
cdef double b = cos(pi / 180 * fabs(lat)) ** 2
cdef double b = cos(pi / 180.0 * fabs(lat)) ** 2
cdef double nl = 2 * pi / (acos(1 - a / b))
NL = floor(nl)
return NL
@ -236,41 +250,45 @@ cpdef int cprNL(double lat):
@cython.boundscheck(False)
@cython.wraparound(False)
cpdef str idcode(str msg):
"""Compute identity (squawk code)."""
"""Compute identity (squawk code).
Applicable only for DF5 or DF21 messages, bit 20-32.
credit: @fbyrkjeland
Args:
msg (String): 28 bytes hexadecimal message string
Returns:
string: squawk code
"""
if df(msg) not in [5, 21]:
raise RuntimeError("Message must be Downlink Format 5 or 21.")
squawk_code = squawk(hex2bin(msg)[19:32])
return squawk_code
@cython.boundscheck(False)
@cython.wraparound(False)
cpdef str squawk(str binstr):
"""Compute identity (squawk code)."""
if len(binstr) != 13 or set(binstr) != set('01'):
raise RuntimeError("Input must be 13 bits binary string")
cdef bytearray _mbin = bytearray(binstr.encode())
cdef bytearray _mbin = bytearray(hex2bin(msg).encode())
cdef unsigned char[:] mbin = _mbin
cdef bytearray _idcode = bytearray(4)
cdef unsigned char[:] idcode = _idcode
cdef unsigned char C1 = mbin[0]
cdef unsigned char A1 = mbin[1]
cdef unsigned char C2 = mbin[2]
cdef unsigned char A2 = mbin[3]
cdef unsigned char C4 = mbin[4]
cdef unsigned char A4 = mbin[5]
# X = mbin[6]
cdef unsigned char B1 = mbin[7]
cdef unsigned char D1 = mbin[8]
cdef unsigned char B2 = mbin[9]
cdef unsigned char D2 = mbin[10]
cdef unsigned char B4 = mbin[11]
cdef unsigned char D4 = mbin[12]
cdef unsigned char C1 = mbin[19]
cdef unsigned char A1 = mbin[20]
cdef unsigned char C2 = mbin[21]
cdef unsigned char A2 = mbin[22]
cdef unsigned char C4 = mbin[23]
cdef unsigned char A4 = mbin[24]
# _ = mbin[25]
cdef unsigned char B1 = mbin[26]
cdef unsigned char D1 = mbin[27]
cdef unsigned char B2 = mbin[28]
cdef unsigned char D2 = mbin[29]
cdef unsigned char B4 = mbin[30]
cdef unsigned char D4 = mbin[31]
# byte1 = int(A4 + A2 + A1, 2)
# byte2 = int(B4 + B2 + B1, 2)
# byte3 = int(C4 + C2 + C1, 2)
# byte4 = int(D4 + D2 + D1, 2)
idcode[0] = int_to_char((char_to_int(A4)*2 + char_to_int(A2))*2 + char_to_int(A1))
idcode[1] = int_to_char((char_to_int(B4)*2 + char_to_int(B2))*2 + char_to_int(B1))
@ -279,68 +297,68 @@ cpdef str squawk(str binstr):
return _idcode.decode()
#return str(byte1) + str(byte2) + str(byte3) + str(byte4)
@cython.boundscheck(False)
@cython.wraparound(False)
cpdef int altcode(str msg):
"""Compute the altitude."""
"""Compute the altitude.
Applicable only for DF4 or DF20 message, bit 20-32.
credit: @fbyrkjeland
Args:
msg (String): 28 bytes hexadecimal message string
Returns:
int: altitude in ft
"""
if df(msg) not in [0, 4, 16, 20]:
raise RuntimeError("Message must be Downlink Format 0, 4, 16, or 20.")
alt = altitude(hex2bin(msg)[19:32])
return alt
@cython.boundscheck(False)
@cython.wraparound(False)
cpdef int altitude(str binstr):
if len(binstr) != 13 or not set(binstr).issubset(set("01")):
raise RuntimeError("Input must be 13 bits binary string")
cdef bytearray _mbin = bytearray(binstr.encode())
# Altitude code, bit 20-32
cdef bytearray _mbin = bytearray(hex2bin(msg).encode())
cdef unsigned char[:] mbin = _mbin
cdef char Mbit = binstr[6]
cdef char Qbit = binstr[8]
cdef char mbit = mbin[25] # M bit: 26
cdef char qbit = mbin[27] # Q bit: 28
cdef int alt = 0
cdef bytearray vbin
cdef bytearray _graybytes = bytearray(11)
cdef unsigned char[:] graybytes = _graybytes
if bin2int(binstr) == 0:
# altitude unknown or invalid
alt = -999999
elif Mbit == 48: # unit in ft, "0" -> 48
if Qbit == 49: # 25ft interval, "1" -> 49
vbin = _mbin[:6] + _mbin[7:8] + _mbin[9:]
if mbit == 48: # unit in ft, "0" -> 48
if qbit == 49: # 25ft interval, "1" -> 49
vbin = _mbin[19:25] + _mbin[26:27] + _mbin[28:32]
alt = bin2int(vbin.decode()) * 25 - 1000
if Qbit == 48: # 100ft interval, above 50175ft, "0" -> 48
graybytes[8] = mbin[0]
graybytes[2] = mbin[1]
graybytes[9] = mbin[2]
graybytes[3] = mbin[3]
graybytes[10] = mbin[4]
graybytes[4] = mbin[5]
# M = mbin[6]
graybytes[5] = mbin[7]
# Q = mbin[8]
graybytes[6] = mbin[9]
graybytes[0] = mbin[10]
graybytes[7] = mbin[11]
graybytes[1] = mbin[12]
if qbit == 48: # 100ft interval, above 50175ft, "0" -> 48
graybytes[8] = mbin[19]
graybytes[2] = mbin[20]
graybytes[9] = mbin[21]
graybytes[3] = mbin[22]
graybytes[10] = mbin[23]
graybytes[4] = mbin[24]
# _ = mbin[25]
graybytes[5] = mbin[26]
# cdef char D1 = mbin[27] # always zero
graybytes[6] = mbin[28]
graybytes[0] = mbin[29]
graybytes[7] = mbin[30]
graybytes[1] = mbin[31]
# graybytes = D2 + D4 + A1 + A2 + A4 + B1 + B2 + B4 + C1 + C2 + C4
alt = gray2alt(_graybytes.decode())
elif Mbit == 49: # unit in meter, "1" -> 49
vbin = _mbin[:6] + _mbin[7:]
if mbit == 49: # unit in meter, "1" -> 49
vbin = _mbin[19:25] + _mbin[26:31]
alt = int(bin2int(vbin.decode()) * 3.28084) # convert to ft
return alt
cpdef int gray2alt(str codestr):
cdef str gc500 = codestr[:8]
cdef int n500 = gray2int(gc500)
@ -373,13 +391,21 @@ cdef int gray2int(str graystr):
return num
cpdef str data(str msg):
cdef str data(str msg):
"""Return the data frame in the message, bytes 9 to 22."""
return msg[8:-6]
cpdef bint allzeros(str msg):
"""Check if the data bits are all zeros."""
"""Check if the data bits are all zeros.
Args:
msg (String): 28 bytes hexadecimal message string
Returns:
bool: True or False
"""
d = hex2bin(data(msg))
if bin2int(d) > 0:

View File

@ -1,88 +1,37 @@
"""Comm-B module.
"""Comm-B Wrapper.
The Comm-B module imports all functions from the following modules:
The Comm-B wrapper imports all functions from the following modules:
ELS - elementary surveillance
**ELS - elementary surveillance**
- pyModeS.decoder.bds.bds10
- pyModeS.decoder.bds.bds17
- pyModeS.decoder.bds.bds20
- pyModeS.decoder.bds.bds30
- pyModeS.decoder.bds.bds10
- pyModeS.decoder.bds.bds17
- pyModeS.decoder.bds.bds20
- pyModeS.decoder.bds.bds30
**EHS - enhanced surveillance**
- pyModeS.decoder.bds.bds40
- pyModeS.decoder.bds.bds50
- pyModeS.decoder.bds.bds60
EHS - enhanced surveillance
- pyModeS.decoder.bds.bds40
- pyModeS.decoder.bds.bds50
- pyModeS.decoder.bds.bds60
MRAR and MHR
- pyModeS.decoder.bds.bds44
- pyModeS.decoder.bds.bds45
**MRAR and MHR**
- pyModeS.decoder.bds.bds44
- pyModeS.decoder.bds.bds45
"""
from __future__ import absolute_import, print_function, division
# ELS - elementary surveillance
from .bds.bds10 import is10, ovc10
from .bds.bds17 import is17, cap17
from .bds.bds20 import is20, cs20
from .bds.bds30 import is30
from pyModeS.decoder.bds.bds10 import *
from pyModeS.decoder.bds.bds17 import *
from pyModeS.decoder.bds.bds20 import *
from pyModeS.decoder.bds.bds30 import *
# ELS - enhanced surveillance
from .bds.bds40 import (
is40,
selalt40fms,
selalt40mcp,
p40baro,
alt40fms,
alt40mcp,
)
from .bds.bds50 import is50, roll50, trk50, gs50, rtrk50, tas50
from .bds.bds60 import is60, hdg60, ias60, mach60, vr60baro, vr60ins
from pyModeS.decoder.bds.bds40 import *
from pyModeS.decoder.bds.bds50 import *
from pyModeS.decoder.bds.bds60 import *
# MRAR and MHR
from .bds.bds44 import is44, wind44, temp44, p44, hum44, turb44
from .bds.bds45 import is45, turb45, ws45, mb45, ic45, wv45, temp45, p45, rh45
__all__ = [
"is10",
"ovc10",
"is17",
"cap17",
"is20",
"cs20",
"is30",
"is40",
"selalt40fms",
"selalt40mcp",
"p40baro",
"alt40fms",
"alt40mcp",
"is50",
"roll50",
"trk50",
"gs50",
"rtrk50",
"tas50",
"is60",
"hdg60",
"ias60",
"mach60",
"vr60baro",
"vr60ins",
"is44",
"wind44",
"temp44",
"p44",
"hum44",
"turb44",
"is45",
"turb45",
"ws45",
"mb45",
"ic45",
"wv45",
"temp45",
"p45",
"rh45",
]
from pyModeS.decoder.bds.bds44 import *
from pyModeS.decoder.bds.bds45 import *

View File

@ -1,46 +1,40 @@
from typing import Optional
from __future__ import absolute_import, print_function, division
import numpy as np
from textwrap import wrap
def hex2bin(hexstr: str) -> str:
"""Convert a hexadecimal string to binary string, with zero fillings."""
def hex2bin(hexstr):
"""Convert a hexdecimal string to binary string, with zero fillings."""
num_of_bits = len(hexstr) * 4
binstr = bin(int(hexstr, 16))[2:].zfill(int(num_of_bits))
return binstr
def hex2int(hexstr: str) -> int:
"""Convert a hexadecimal string to integer."""
def hex2int(hexstr):
"""Convert a hexdecimal string to integer."""
return int(hexstr, 16)
def bin2int(binstr: str) -> int:
def bin2int(binstr):
"""Convert a binary string to integer."""
return int(binstr, 2)
def bin2hex(binstr: str) -> str:
"""Convert a binary string to hexadecimal string."""
return "{0:X}".format(int(binstr, 2))
def df(msg: str) -> int:
"""Decode Downlink Format value, bits 1 to 5."""
def df(msg):
"""Decode Downlink Format vaule, bits 1 to 5."""
dfbin = hex2bin(msg[:2])
return min(bin2int(dfbin[0:5]), 24)
def crc(msg: str, encode: bool = False) -> int:
def crc(msg, encode=False):
"""Mode-S Cyclic Redundancy Check.
Detect if bit error occurs in the Mode-S message. When encode option is on,
the checksum is generated.
Args:
msg: 28 bytes hexadecimal message string
encode: True to encode the date only and return the checksum
msg (string): 28 bytes hexadecimal message string
encode (bool): True to encode the date only and return the checksum
Returns:
int: message checksum, or partity bits (encoder)
@ -77,7 +71,7 @@ def crc(msg: str, encode: bool = False) -> int:
return result
def crc_legacy(msg: str, encode: bool = False) -> int:
def crc_legacy(msg, encode=False):
"""Mode-S Cyclic Redundancy Check. (Legacy code, 2x slow)."""
# the polynominal generattor code for CRC [1111111111111010000001001]
generator = np.array(
@ -105,7 +99,7 @@ def crc_legacy(msg: str, encode: bool = False) -> int:
return reminder
def floor(x: float) -> int:
def floor(x):
"""Mode-S floor function.
Defined as the greatest integer value k, such that k <= x
@ -115,7 +109,7 @@ def floor(x: float) -> int:
return int(np.floor(x))
def icao(msg: str) -> Optional[str]:
def icao(msg):
"""Calculate the ICAO address from an Mode-S message.
Applicable only with DF4, DF5, DF20, DF21 messages.
@ -127,7 +121,6 @@ def icao(msg: str) -> Optional[str]:
String: ICAO address in 6 bytes hexadecimal string
"""
addr: Optional[str]
DF = df(msg)
if DF in (11, 17, 18):
@ -142,7 +135,7 @@ def icao(msg: str) -> Optional[str]:
return addr
def is_icao_assigned(icao: str) -> bool:
def is_icao_assigned(icao):
"""Check whether the ICAO address is assigned (Annex 10, Vol 3)."""
if (icao is None) or (not isinstance(icao, str)) or (len(icao) != 6):
return False
@ -171,7 +164,7 @@ def is_icao_assigned(icao: str) -> bool:
return True
def typecode(msg: str) -> Optional[int]:
def typecode(msg):
"""Type code of ADS-B message
Args:
@ -187,26 +180,31 @@ def typecode(msg: str) -> Optional[int]:
return bin2int(tcbin[0:5])
def cprNL(lat: float) -> int:
def cprNL(lat):
"""NL() function in CPR decoding."""
if np.isclose(lat, 0):
if lat == 0:
return 59
elif np.isclose(abs(lat), 87):
if lat == 87 or lat == -87:
return 2
elif lat > 87 or lat < -87:
if lat > 87 or lat < -87:
return 1
nz = 15
a = 1 - np.cos(np.pi / (2 * nz))
b = np.cos(np.pi / 180 * abs(lat)) ** 2
b = np.cos(np.pi / 180.0 * abs(lat)) ** 2
nl = 2 * np.pi / (np.arccos(1 - a / b))
NL = floor(nl)
return NL
def idcode(msg: str) -> str:
"""Compute identity code (squawk) encoded in DF5 or DF21 message.
def idcode(msg):
"""Compute identity (squawk code).
Applicable only for DF5 or DF21 messages, bit 20-32.
credit: @fbyrkjeland
Args:
msg (String): 28 bytes hexadecimal message string
@ -219,37 +217,20 @@ def idcode(msg: str) -> str:
raise RuntimeError("Message must be Downlink Format 5 or 21.")
mbin = hex2bin(msg)
idcodebin = mbin[19:32]
return squawk(idcodebin)
def squawk(binstr: str) -> str:
"""Decode 13 bits identity (squawk) code.
Args:
binstr (String): 13 bits binary string
Returns:
string: squawk code
"""
if len(binstr) != 13 or not set(binstr).issubset(set("01")):
raise RuntimeError("Input must be 13 bits binary string")
C1 = binstr[0]
A1 = binstr[1]
C2 = binstr[2]
A2 = binstr[3]
C4 = binstr[4]
A4 = binstr[5]
# X = binstr[6]
B1 = binstr[7]
D1 = binstr[8]
B2 = binstr[9]
D2 = binstr[10]
B4 = binstr[11]
D4 = binstr[12]
C1 = mbin[19]
A1 = mbin[20]
C2 = mbin[21]
A2 = mbin[22]
C4 = mbin[23]
A4 = mbin[24]
# _ = mbin[25]
B1 = mbin[26]
D1 = mbin[27]
B2 = mbin[28]
D2 = mbin[29]
B4 = mbin[30]
D4 = mbin[31]
byte1 = int(A4 + A2 + A1, 2)
byte2 = int(B4 + B2 + B1, 2)
@ -259,8 +240,11 @@ def squawk(binstr: str) -> str:
return str(byte1) + str(byte2) + str(byte3) + str(byte4)
def altcode(msg: str) -> Optional[int]:
"""Compute altitude encoded in DF4 or DF20 message.
def altcode(msg):
"""Compute the altitude.
Applicable only for DF4 or DF20 message, bit 20-32.
credit: @fbyrkjeland
Args:
msg (String): 28 bytes hexadecimal message string
@ -269,78 +253,50 @@ def altcode(msg: str) -> Optional[int]:
int: altitude in ft
"""
alt: Optional[int]
if df(msg) not in [0, 4, 16, 20]:
raise RuntimeError("Message must be Downlink Format 0, 4, 16, or 20.")
# Altitude code, bit 20-32
mbin = hex2bin(msg)
altitude_code = mbin[19:32]
mbit = mbin[25] # M bit: 26
qbit = mbin[27] # Q bit: 28
alt = altitude(altitude_code)
return alt
def altitude(binstr: str) -> Optional[int]:
"""Decode 13 bits altitude code.
Args:
binstr (String): 13 bits binary string
Returns:
int: altitude in ft
"""
alt: Optional[int]
if len(binstr) != 13 or not set(binstr).issubset(set("01")):
raise RuntimeError("Input must be 13 bits binary string")
Mbit = binstr[6]
Qbit = binstr[8]
if bin2int(binstr) == 0:
# altitude unknown or invalid
alt = None
elif Mbit == "0": # unit in ft
if Qbit == "1": # 25ft interval
vbin = binstr[:6] + binstr[7] + binstr[9:]
if mbit == "0": # unit in ft
if qbit == "1": # 25ft interval
vbin = mbin[19:25] + mbin[26] + mbin[28:32]
alt = bin2int(vbin) * 25 - 1000
if Qbit == "0": # 100ft interval, above 50187.5ft
C1 = binstr[0]
A1 = binstr[1]
C2 = binstr[2]
A2 = binstr[3]
C4 = binstr[4]
A4 = binstr[5]
# M = binstr[6]
B1 = binstr[7]
# Q = binstr[8]
B2 = binstr[9]
D2 = binstr[10]
B4 = binstr[11]
D4 = binstr[12]
if qbit == "0": # 100ft interval, above 50175ft
C1 = mbin[19]
A1 = mbin[20]
C2 = mbin[21]
A2 = mbin[22]
C4 = mbin[23]
A4 = mbin[24]
# _ = mbin[25]
B1 = mbin[26]
# D1 = mbin[27] # always zero
B2 = mbin[28]
D2 = mbin[29]
B4 = mbin[30]
D4 = mbin[31]
graystr = D2 + D4 + A1 + A2 + A4 + B1 + B2 + B4 + C1 + C2 + C4
alt = gray2alt(graystr)
if Mbit == "1": # unit in meter
vbin = binstr[:6] + binstr[7:]
if mbit == "1": # unit in meter
vbin = mbin[19:25] + mbin[26:31]
alt = int(bin2int(vbin) * 3.28084) # convert to ft
return alt
def gray2alt(binstr: str) -> Optional[int]:
gc500 = binstr[:8]
def gray2alt(codestr):
gc500 = codestr[:8]
n500 = gray2int(gc500)
# in 100-ft step must be converted first
gc100 = binstr[8:]
gc100 = codestr[8:]
n100 = gray2int(gc100)
if n100 in [0, 5, 6]:
@ -356,9 +312,9 @@ def gray2alt(binstr: str) -> Optional[int]:
return alt
def gray2int(binstr: str) -> int:
def gray2int(graystr):
"""Convert greycode to binary."""
num = bin2int(binstr)
num = bin2int(graystr)
num ^= num >> 8
num ^= num >> 4
num ^= num >> 2
@ -366,12 +322,12 @@ def gray2int(binstr: str) -> int:
return num
def data(msg: str) -> str:
def data(msg):
"""Return the data frame in the message, bytes 9 to 22."""
return msg[8:-6]
def allzeros(msg: str) -> bool:
def allzeros(msg):
"""Check if the data bits are all zeros.
Args:
@ -389,7 +345,7 @@ def allzeros(msg: str) -> bool:
return True
def wrongstatus(data: str, sb: int, msb: int, lsb: int) -> bool:
def wrongstatus(data, sb, msb, lsb):
"""Check if the status bit and field bits are consistency.
This Function is used for checking BDS code versions.
@ -404,85 +360,3 @@ def wrongstatus(data: str, sb: int, msb: int, lsb: int) -> bool:
return True
return False
def fs(msg):
"""Decode flight status for DF 4, 5, 20, and 21.
Args:
msg (str): 14 hexdigits string
Returns:
int, str: flight status, description
"""
msgbin = hex2bin(msg)
fs = bin2int(msgbin[5:8])
text = None
if fs == 0:
text = "no alert, no SPI, aircraft is airborne"
elif fs == 1:
text = "no alert, no SPI, aircraft is on-ground"
elif fs == 2:
text = "alert, no SPI, aircraft is airborne"
elif fs == 3:
text = "alert, no SPI, aircraft is on-ground"
elif fs == 4:
text = "alert, SPI, aircraft is airborne or on-ground"
elif fs == 5:
text = "no alert, SPI, aircraft is airborne or on-ground"
return fs, text
def dr(msg):
"""Decode downlink request for DF 4, 5, 20, and 21.
Args:
msg (str): 14 hexdigits string
Returns:
int, str: downlink request, description
"""
msgbin = hex2bin(msg)
dr = bin2int(msgbin[8:13])
text = None
if dr == 0:
text = "no downlink request"
elif dr == 1:
text = "request to send Comm-B message"
elif dr == 4:
text = "Comm-B broadcast 1 available"
elif dr == 5:
text = "Comm-B broadcast 2 available"
elif dr >= 16:
text = "ELM downlink segments available: {}".format(dr - 15)
return dr, text
def um(msg):
"""Decode utility message for DF 4, 5, 20, and 21.
Utility message contains interrogator identifier and reservation type.
Args:
msg (str): 14 hexdigits string
Returns:
int, str: interrogator identifier code that triggered the reply, and
reservation type made by the interrogator
"""
msgbin = hex2bin(msg)
iis = bin2int(msgbin[13:17])
ids = bin2int(msgbin[17:19])
if ids == 0:
ids_text = None
if ids == 1:
ids_text = "Comm-B interrogator identifier code"
if ids == 2:
ids_text = "Comm-C interrogator identifier code"
if ids == 3:
ids_text = "Comm-D interrogator identifier code"
return iis, ids, ids_text

View File

@ -9,58 +9,28 @@ The EHS wrapper imports all functions from the following modules:
"""
from __future__ import absolute_import, print_function, division
import warnings
from .bds.bds40 import (
is40,
selalt40fms,
selalt40mcp,
p40baro,
alt40fms,
alt40mcp,
)
from .bds.bds50 import is50, roll50, trk50, gs50, rtrk50, tas50
from .bds.bds60 import is60, hdg60, ias60, mach60, vr60baro, vr60ins
from .bds import infer
__all__ = [
"is40",
"selalt40fms",
"selalt40mcp",
"p40baro",
"alt40fms",
"alt40mcp",
"is50",
"roll50",
"trk50",
"gs50",
"rtrk50",
"tas50",
"is60",
"hdg60",
"ias60",
"mach60",
"vr60baro",
"vr60ins",
"infer",
]
from pyModeS.decoder.bds.bds40 import *
from pyModeS.decoder.bds.bds50 import *
from pyModeS.decoder.bds.bds60 import *
from pyModeS.decoder.bds import infer
warnings.simplefilter("once", DeprecationWarning)
warnings.warn(
"pms.ehs module is deprecated. Please use pms.commb instead.",
DeprecationWarning,
"pms.ehs module is deprecated. Please use pms.commb instead.", DeprecationWarning
)
def BDS(msg):
warnings.warn(
"pms.ehs.BDS() is deprecated, use pms.bds.infer() instead.",
DeprecationWarning,
"pms.ehs.BDS() is deprecated, use pms.bds.infer() instead.", DeprecationWarning
)
return infer(msg)
def icao(msg):
from . import common
from pyModeS.decoder.common import icao
return common.icao(msg)
return icao(msg)

View File

@ -10,26 +10,16 @@ The ELS wrapper imports all functions from the following modules:
"""
import warnings
from __future__ import absolute_import, print_function, division
from .bds.bds10 import is10, ovc10
from .bds.bds17 import cap17, is17
from .bds.bds20 import cs20, is20
from .bds.bds30 import is30
from pyModeS.decoder.bds.bds10 import *
from pyModeS.decoder.bds.bds17 import *
from pyModeS.decoder.bds.bds20 import *
from pyModeS.decoder.bds.bds30 import *
import warnings
warnings.simplefilter("once", DeprecationWarning)
warnings.warn(
"pms.els module is deprecated. Please use pms.commb instead.",
DeprecationWarning,
"pms.els module is deprecated. Please use pms.commb instead.", DeprecationWarning
)
__all__ = [
"is10",
"ovc10",
"is17",
"cap17",
"is20",
"cs20",
"is30",
]

View File

@ -1,26 +0,0 @@
from typing import TypedDict
from typing_extensions import Annotated
from .decode import flarm as flarm_decode
__all__ = ["DecodedMessage", "flarm"]
class DecodedMessage(TypedDict):
timestamp: int
icao24: str
latitude: float
longitude: float
altitude: Annotated[int, "m"]
vertical_speed: Annotated[float, "m/s"]
groundspeed: int
track: int
type: str
sensorLatitude: float
sensorLongitude: float
isIcao24: bool
noTrack: bool
stealth: bool
flarm = flarm_decode

View File

@ -1,124 +0,0 @@
#include "core.h"
/*
*
* https://pastebin.com/YK2f8bfm
*
* NEW ENCRYPTION
*
* Swiss glider anti-colission system moved to a new encryption scheme: XXTEA
* The algorithm encrypts all the packet after the header: total 20 bytes or 5 long int words of data
*
* XXTEA description and code are found here: http://en.wikipedia.org/wiki/XXTEA
* The system uses 6 iterations of the main loop.
*
* The system version 6 sends two type of packets: position and ... some unknown data
* The difference is made by bit 0 of byte 3 of the packet: for position data this bit is zero.
*
* For position data the key used depends on the time and transmitting device address.
* The key is as well obscured by a weird algorithm.
* The code to generate the key is:
*
* */
void make_key(int *key, long time, long address)
{
const long key1[4] = {0xe43276df, 0xdca83759, 0x9802b8ac, 0x4675a56b};
const long key1b[4] = {0xfc78ea65, 0x804b90ea, 0xb76542cd, 0x329dfa32};
const long *table = ((((time >> 23) & 255) & 0x01) != 0) ? key1b : key1;
for (int i = 0; i < 4; i++)
{
key[i] = obscure(table[i] ^ ((time >> 6) ^ address), 0x045D9F3B) ^ 0x87B562F4;
}
}
long obscure(long key, unsigned long seed)
{
unsigned int m1 = seed * (key ^ (key >> 16));
unsigned int m2 = seed * (m1 ^ (m1 >> 16));
return m2 ^ (m2 >> 16);
}
/*
* NEW PACKET FORMAT:
*
* Byte Bits
* 0 AAAA AAAA device address
* 1 AAAA AAAA
* 2 AAAA AAAA
* 3 00aa 0000 aa = 10 or 01
*
* 4 vvvv vvvv vertical speed
* 5 xxxx xxvv
* 6 gggg gggg GPS status
* 7 tttt gggg plane type
*
* 8 LLLL LLLL Latitude
* 9 LLLL LLLL
* 10 aaaa aLLL
* 11 aaaa aaaa Altitude
*
* 12 NNNN NNNN Longitude
* 13 NNNN NNNN
* 14 xxxx NNNN
* 15 FFxx xxxx multiplying factor
*
* 16 SSSS SSSS as in version 4
* 17 ssss ssss
* 18 KKKK KKKK
* 19 kkkk kkkk
*
* 20 EEEE EEEE
* 21 eeee eeee
* 22 PPPP PPPP
* 24 pppp pppp
* */
/*
* https://en.wikipedia.org/wiki/XXTEA
*/
void btea(uint32_t *v, int n, uint32_t const key[4])
{
uint32_t y, z, sum;
unsigned p, rounds, e;
if (n > 1)
{ /* Coding Part */
/* Unused, should remove? */
rounds = 6 + 52 / n;
sum = 0;
z = v[n - 1];
do
{
sum += DELTA;
e = (sum >> 2) & 3;
for (p = 0; p < (unsigned)n - 1; p++)
{
y = v[p + 1];
z = v[p] += MX;
}
y = v[0];
z = v[n - 1] += MX;
} while (--rounds);
}
else if (n < -1)
{ /* Decoding Part */
n = -n;
rounds = 6; // + 52 / n;
sum = rounds * DELTA;
y = v[0];
do
{
e = (sum >> 2) & 3;
for (p = n - 1; p > 0; p--)
{
z = v[p - 1];
y = v[p] -= MX;
}
z = v[n - 1];
y = v[0] -= MX;
sum -= DELTA;
} while (--rounds);
}
}

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@ -1,13 +0,0 @@
#ifndef __CORE_H__
#define __CORE_H__
#include <stdint.h>
#define DELTA 0x9e3779b9
#define MX (((z >> 5 ^ y << 2) + (y >> 3 ^ z << 4)) ^ ((sum ^ y) + (key[(p & 3) ^ e] ^ z)))
void make_key(int *key, long time, long address);
long obscure(long key, unsigned long seed);
void btea(uint32_t *v, int n, uint32_t const key[4]);
#endif

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@ -1,4 +0,0 @@
cdef extern from "core.h":
void make_key(int*, long time, long address)
void btea(int*, int, int*)

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@ -1,14 +0,0 @@
from typing import Any
from . import DecodedMessage
AIRCRAFT_TYPES: list[str]
def flarm(
timestamp: int,
msg: str,
refLat: float,
refLon: float,
**kwargs: Any,
) -> DecodedMessage: ...

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@ -1,147 +0,0 @@
from cpython cimport array
from .core cimport make_key as c_make_key, btea as c_btea
import array
import math
from ctypes import c_byte
from textwrap import wrap
AIRCRAFT_TYPES = [
"Unknown", # 0
"Glider", # 1
"Tow-Plane", # 2
"Helicopter", # 3
"Parachute", # 4
"Parachute Drop-Plane", # 5
"Hangglider", # 6
"Paraglider", # 7
"Aircraft", # 8
"Jet", # 9
"UFO", # 10
"Balloon", # 11
"Airship", # 12
"UAV", # 13
"Reserved", # 14
"Static Obstacle", # 15
]
cdef long bytearray2int(str icao24):
return (
(int(icao24[4:6], 16) & 0xFF)
| ((int(icao24[2:4], 16) & 0xFF) << 8)
| ((int(icao24[:2], 16) & 0xFF) << 16)
)
cpdef array.array make_key(long timestamp, str icao24):
cdef long addr = bytearray2int(icao24)
cdef array.array a = array.array('i', [0, 0, 0, 0])
c_make_key(a.data.as_ints, timestamp, (addr << 8) & 0xffffff)
return a
cpdef array.array btea(long timestamp, str msg):
cdef int p
cdef str icao24 = msg[4:6] + msg[2:4] + msg[:2]
cdef array.array key = make_key(timestamp, icao24)
pieces = wrap(msg[8:], 8)
cdef array.array toDecode = array.array('i', len(pieces) * [0])
for i, piece in enumerate(pieces):
p = 0
for elt in wrap(piece, 2)[::-1]:
p = (p << 8) + int(elt, 16)
toDecode[i] = p
c_btea(toDecode.data.as_ints, -5, key.data.as_ints)
return toDecode
cdef float velocity(int ns, int ew):
return math.hypot(ew / 4, ns / 4)
def heading(ns, ew, velocity):
if velocity < 1e-6:
velocity = 1
return (math.atan2(ew / velocity / 4, ns / velocity / 4) / 0.01745) % 360
def turningRate(a1, a2):
return ((((a2 - a1)) + 540) % 360) - 180
def flarm(long timestamp, str msg, float refLat, float refLon, **kwargs):
"""Decode a FLARM message.
Args:
timestamp (int)
msg (str)
refLat (float): the receiver's location
refLon (float): the receiver's location
Returns:
a dictionary with all decoded fields. Any extra keyword argument passed
is included in the output dictionary.
"""
cdef str icao24 = msg[4:6] + msg[2:4] + msg[:2]
cdef int magic = int(msg[6:8], 16)
if magic != 0x10 and magic != 0x20:
return None
cdef array.array decoded = btea(timestamp, msg)
cdef int aircraft_type = (decoded[0] >> 28) & 0xF
cdef int gps = (decoded[0] >> 16) & 0xFFF
cdef int raw_vs = c_byte(decoded[0] & 0x3FF).value
noTrack = ((decoded[0] >> 14) & 0x1) == 1
stealth = ((decoded[0] >> 13) & 0x1) == 1
cdef int altitude = (decoded[1] >> 19) & 0x1FFF
cdef int lat = decoded[1] & 0x7FFFF
cdef int mult_factor = 1 << ((decoded[2] >> 30) & 0x3)
cdef int lon = decoded[2] & 0xFFFFF
ns = list(
c_byte((decoded[3] >> (i * 8)) & 0xFF).value * mult_factor
for i in range(4)
)
ew = list(
c_byte((decoded[4] >> (i * 8)) & 0xFF).value * mult_factor
for i in range(4)
)
cdef int roundLat = int(refLat * 1e7) >> 7
lat = (lat - roundLat) % 0x080000
if lat >= 0x040000:
lat -= 0x080000
lat = (((lat + roundLat) << 7) + 0x40)
roundLon = int(refLon * 1e7) >> 7
lon = (lon - roundLon) % 0x100000
if lon >= 0x080000:
lon -= 0x100000
lon = (((lon + roundLon) << 7) + 0x40)
speed = sum(velocity(n, e) for n, e in zip(ns, ew)) / 4
heading4 = heading(ns[0], ew[0], speed)
heading8 = heading(ns[1], ew[1], speed)
return dict(
timestamp=timestamp,
icao24=icao24,
latitude=lat * 1e-7,
longitude=lon * 1e-7,
geoaltitude=altitude,
vertical_speed=raw_vs * mult_factor / 10,
groundspeed=speed,
track=heading4 - 4 * turningRate(heading4, heading8) / 4,
type=AIRCRAFT_TYPES[aircraft_type],
sensorLatitude=refLat,
sensorLongitude=refLon,
isIcao24=magic==0x10,
noTrack=noTrack,
stealth=stealth,
gps=gps,
**kwargs
)

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@ -1,138 +1,8 @@
"""
Decode short roll call surveillance replies, with downlink format 4 or 5
Warpper for short roll call surveillance replies DF=4/5
[To be implemented]
"""
from __future__ import annotations
from typing import Callable, TypeVar
from .. import common
T = TypeVar("T")
F = Callable[[str], T]
def _checkdf(func: F[T]) -> F[T]:
"""Ensure downlink format is 4 or 5."""
def wrapper(msg: str) -> T:
df = common.df(msg)
if df not in [4, 5]:
raise RuntimeError(
"Incorrect downlink format, expect 4 or 5, got {}".format(df)
)
return func(msg)
return wrapper
@_checkdf
def fs(msg: str) -> tuple[int, str]:
"""Decode flight status.
Args:
msg (str): 14 hexdigits string
Returns:
int, str: flight status, description
"""
msgbin = common.hex2bin(msg)
fs = common.bin2int(msgbin[5:8])
text = ""
if fs == 0:
text = "no alert, no SPI, aircraft is airborne"
elif fs == 1:
text = "no alert, no SPI, aircraft is on-ground"
elif fs == 2:
text = "alert, no SPI, aircraft is airborne"
elif fs == 3:
text = "alert, no SPI, aircraft is on-ground"
elif fs == 4:
text = "alert, SPI, aircraft is airborne or on-ground"
elif fs == 5:
text = "no alert, SPI, aircraft is airborne or on-ground"
return fs, text
@_checkdf
def dr(msg: str) -> tuple[int, str]:
"""Decode downlink request.
Args:
msg (str): 14 hexdigits string
Returns:
int, str: downlink request, description
"""
msgbin = common.hex2bin(msg)
dr = common.bin2int(msgbin[8:13])
text = ""
if dr == 0:
text = "no downlink request"
elif dr == 1:
text = "request to send Comm-B message"
elif dr == 4:
text = "Comm-B broadcast 1 available"
elif dr == 5:
text = "Comm-B broadcast 2 available"
elif dr >= 16:
text = "ELM downlink segments available: {}".format(dr - 15)
return dr, text
@_checkdf
def um(msg: str) -> tuple[int, int, None | str]:
"""Decode utility message.
Utility message contains interrogator identifier and reservation type.
Args:
msg (str): 14 hexdigits string
Returns:
int, str: interrogator identifier code that triggered the reply, and
reservation type made by the interrogator
"""
msgbin = common.hex2bin(msg)
iis = common.bin2int(msgbin[13:17])
ids = common.bin2int(msgbin[17:19])
if ids == 0:
ids_text = None
if ids == 1:
ids_text = "Comm-B interrogator identifier code"
if ids == 2:
ids_text = "Comm-C interrogator identifier code"
if ids == 3:
ids_text = "Comm-D interrogator identifier code"
return iis, ids, ids_text
@_checkdf
def altitude(msg: str) -> None | int:
"""Decode altitude.
Args:
msg (String): 14 hexdigits string
Returns:
int: altitude in ft
"""
return common.altcode(msg)
@_checkdf
def identity(msg: str) -> str:
"""Decode squawk code.
Args:
msg (String): 14 hexdigits string
Returns:
string: squawk code
"""
return common.idcode(msg)
from __future__ import absolute_import, print_function, division
from pyModeS.decoder import common

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@ -1,16 +1,8 @@
"""Uncertainty parameters.
See source code at: https://github.com/junzis/pyModeS/blob/master/pyModeS/decoder/uncertainty.py
"""
from __future__ import annotations
import sys
if sys.version_info < (3, 8):
from typing_extensions import TypedDict
else:
from typing import TypedDict
NA = None
TC_NUCp_lookup = {
@ -34,7 +26,7 @@ TC_NUCp_lookup = {
22: 0,
}
TC_NICv1_lookup: dict[int, int | dict[int, int]] = {
TC_NICv1_lookup = {
5: 11,
6: 10,
7: 9,
@ -54,7 +46,7 @@ TC_NICv1_lookup: dict[int, int | dict[int, int]] = {
22: 0,
}
TC_NICv2_lookup: dict[int, int | dict[int, int]] = {
TC_NICv2_lookup = {
5: 11,
6: 10,
7: {2: 9, 0: 8},
@ -75,13 +67,7 @@ TC_NICv2_lookup: dict[int, int | dict[int, int]] = {
}
class NUCpEntry(TypedDict):
HPL: None | float
RCu: None | int
RCv: None | int
NUCp: dict[int, NUCpEntry] = {
NUCp = {
9: {"HPL": 7.5, "RCu": 3, "RCv": 4},
8: {"HPL": 25, "RCu": 10, "RCv": 15},
7: {"HPL": 185, "RCu": 93, "RCv": NA},
@ -94,13 +80,7 @@ NUCp: dict[int, NUCpEntry] = {
0: {"HPL": NA, "RCu": NA, "RCv": NA},
}
class NUCvEntry(TypedDict):
HVE: None | float
VVE: None | float
NUCv: dict[int, NUCvEntry] = {
NUCv = {
0: {"HVE": NA, "VVE": NA},
1: {"HVE": 10, "VVE": 15.2},
2: {"HVE": 3, "VVE": 4.5},
@ -108,13 +88,7 @@ NUCv: dict[int, NUCvEntry] = {
4: {"HVE": 0.3, "VVE": 0.46},
}
class NACpEntry(TypedDict):
EPU: None | int
VEPU: None | int
NACp: dict[int, NACpEntry] = {
NACp = {
11: {"EPU": 3, "VEPU": 4},
10: {"EPU": 10, "VEPU": 15},
9: {"EPU": 30, "VEPU": 45},
@ -129,13 +103,7 @@ NACp: dict[int, NACpEntry] = {
0: {"EPU": NA, "VEPU": NA},
}
class NACvEntry(TypedDict):
HFOMr: None | float
VFOMr: None | float
NACv: dict[int, NACvEntry] = {
NACv = {
0: {"HFOMr": NA, "VFOMr": NA},
1: {"HFOMr": 10, "VFOMr": 15.2},
2: {"HFOMr": 3, "VFOMr": 4.5},
@ -143,13 +111,7 @@ NACv: dict[int, NACvEntry] = {
4: {"HFOMr": 0.3, "VFOMr": 0.46},
}
class SILEntry(TypedDict):
PE_RCu: None | float
PE_VPL: None | float
SIL: dict[int, SILEntry] = {
SIL = {
3: {"PE_RCu": 1e-7, "PE_VPL": 2e-7},
2: {"PE_RCu": 1e-5, "PE_VPL": 1e-5},
1: {"PE_RCu": 1e-3, "PE_VPL": 1e-3},
@ -157,12 +119,7 @@ SIL: dict[int, SILEntry] = {
}
class NICv1Entry(TypedDict):
Rc: None | float
VPL: None | float
NICv1: dict[int, dict[int, NICv1Entry]] = {
NICv1 = {
# NIC is used as the index at second Level
11: {0: {"Rc": 7.5, "VPL": 11}},
10: {0: {"Rc": 25, "VPL": 37.5}},
@ -178,12 +135,7 @@ NICv1: dict[int, dict[int, NICv1Entry]] = {
0: {0: {"Rc": NA, "VPL": NA}},
}
class NICv2Entry(TypedDict):
Rc: None | float
NICv2: dict[int, dict[int, NICv2Entry]] = {
NICv2 = {
# Decimal value of [NICa NICb/NICc] is used as the index at second Level
11: {0: {"Rc": 7.5}},
10: {0: {"Rc": 25}},

View File

@ -1,229 +0,0 @@
from typing import Optional
from .. import common
from textwrap import wrap
def uplink_icao(msg: str) -> str:
"Calculate the ICAO address from a Mode-S interrogation (uplink message)"
p_gen = 0xFFFA0480 << ((len(msg) - 14) * 4)
data = int(msg[:-6], 16)
PA = int(msg[-6:], 16)
ad = 0
topbit = 0b1 << (len(msg) * 4 - 25)
for j in range(0, len(msg) * 4, 1):
if data & topbit:
data ^= p_gen
data = (data << 1) + ((PA >> 23) & 1)
PA = PA << 1
if j > (len(msg) * 4 - 26):
ad = ad + ((data >> (len(msg) * 4 - 25)) & 1)
ad = ad << 1
return "%06X" % (ad >> 2)
def uf(msg: str) -> int:
"""Decode Uplink Format value, bits 1 to 5."""
ufbin = common.hex2bin(msg[:2])
return min(common.bin2int(ufbin[0:5]), 24)
def bds(msg: str) -> Optional[str]:
"Decode requested BDS register from selective (Roll Call) interrogation."
UF = uf(msg)
msgbin = common.hex2bin(msg)
msgbin_split = wrap(msgbin, 8)
mbytes = list(map(common.bin2int, msgbin_split))
if UF in {4, 5, 20, 21}:
di = mbytes[1] & 0x7 # DI - Designator Identification
RR = mbytes[1] >> 3 & 0x1F
if RR > 15:
BDS1 = RR - 16
if di == 7:
RRS = mbytes[2] & 0x0F
BDS2 = RRS
elif di == 3:
RRS = ((mbytes[2] & 0x1) << 3) | ((mbytes[3] & 0xE0) >> 5)
BDS2 = RRS
else:
# for other values of DI, the BDS2 is assumed 0
# (as per ICAO Annex 10 Vol IV)
BDS2 = 0
return str(format(BDS1,"X")) + str(format(BDS2,"X"))
else:
return None
else:
return None
def pr(msg: str) -> Optional[int]:
"""Decode PR (probability of reply) field from All Call interrogation.
Interpretation:
0 signifies reply with probability of 1
1 signifies reply with probability of 1/2
2 signifies reply with probability of 1/4
3 signifies reply with probability of 1/8
4 signifies reply with probability of 1/16
5, 6, 7 not assigned
8 signifies disregard lockout, reply with probability of 1
9 signifies disregard lockout, reply with probability of 1/2
10 signifies disregard lockout, reply with probability of 1/4
11 signifies disregard lockout, reply with probability of 1/8
12 signifies disregard lockout, reply with probability of 1/16
13, 14, 15 not assigned.
"""
msgbin = common.hex2bin(msg)
msgbin_split = wrap(msgbin, 8)
mbytes = list(map(common.bin2int, msgbin_split))
if uf(msg) == 11:
return ((mbytes[0] & 0x7) << 1) | ((mbytes[1] & 0x80) >> 7)
else:
return None
def ic(msg: str) -> Optional[str]:
"""Decode IC (interrogator code) from a ground-based interrogation."""
UF = uf(msg)
msgbin = common.hex2bin(msg)
msgbin_split = wrap(msgbin, 8)
mbytes = list(map(common.bin2int, msgbin_split))
IC = None
if UF == 11:
codeLabel = mbytes[1] & 0x7
icField = (mbytes[1] >> 3) & 0xF
# Store the Interogator Code
ic_switcher = {
0: "II" + str(icField),
1: "SI" + str(icField),
2: "SI" + str(icField + 16),
3: "SI" + str(icField + 32),
4: "SI" + str(icField + 48),
}
IC = ic_switcher.get(codeLabel, "")
if UF in {4, 5, 20, 21}:
di = mbytes[1] & 0x7
RR = mbytes[1] >> 3 & 0x1F
if RR > 15:
BDS1 = RR - 16 # noqa: F841
if di == 0 or di == 1 or di == 7:
# II
II = (mbytes[2] >> 4) & 0xF
IC = "II" + str(II)
elif di == 3:
# SI
SI = (mbytes[2] >> 2) & 0x3F
IC = "SI" + str(SI)
return IC
def lockout(msg):
"""Decode the lockout command from selective (Roll Call) interrogation."""
msgbin = common.hex2bin(msg)
msgbin_split = wrap(msgbin, 8)
mbytes = list(map(common.bin2int, msgbin_split))
if uf(msg) in {4, 5, 20, 21}:
lockout = False
di = mbytes[1] & 0x7
if (di == 1 or di == 7):
# LOS
if ((mbytes[3] & 0x40) >> 6) == 1:
lockout = True
elif di == 3:
# LSS
if ((mbytes[2] & 0x2) >> 1) == 1:
lockout = True
return lockout
else:
return None
def uplink_fields(msg):
"""Decode individual fields of a ground-based interrogation."""
msgbin = common.hex2bin(msg)
msgbin_split = wrap(msgbin, 8)
mbytes = list(map(common.bin2int, msgbin_split))
PR = ""
IC = ""
lockout = False
di = ""
RR = ""
RRS = ""
BDS = ""
if uf(msg) == 11:
# Probability of Reply decoding
PR = ((mbytes[0] & 0x7) << 1) | ((mbytes[1] & 0x80) >> 7)
# Get cl and ic bit fields from the data
# Decode the SI or II interrogator code
codeLabel = mbytes[1] & 0x7
icField = (mbytes[1] >> 3) & 0xF
# Store the Interogator Code
ic_switcher = {
0: "II" + str(icField),
1: "SI" + str(icField),
2: "SI" + str(icField + 16),
3: "SI" + str(icField + 32),
4: "SI" + str(icField + 48),
}
IC = ic_switcher.get(codeLabel, "")
if uf(msg) in {4, 5, 20, 21}:
# Decode the DI and get the lockout information conveniently
# (LSS or LOS)
# DI - Designator Identification
di = mbytes[1] & 0x7
RR = mbytes[1] >> 3 & 0x1F
if RR > 15:
BDS1 = RR - 16
BDS2 = 0
if di == 0:
# II
II = (mbytes[2] >> 4) & 0xF
IC = "II" + str(II)
elif di == 1:
# II
II = (mbytes[2] >> 4) & 0xF
IC = "II" + str(II)
if ((mbytes[3] & 0x40) >> 6) == 1:
lockout = True
elif di == 7:
# LOS
if ((mbytes[3] & 0x40) >> 6) == 1:
lockout = True
# II
II = (mbytes[2] >> 4) & 0xF
IC = "II" + str(II)
RRS = mbytes[2] & 0x0F
BDS2 = RRS
elif di == 3:
# LSS
if ((mbytes[2] & 0x2) >> 1) == 1:
lockout = True
# SI
SI = (mbytes[2] >> 2) & 0x3F
IC = "SI" + str(SI)
RRS = ((mbytes[2] & 0x1) << 3) | ((mbytes[3] & 0xE0) >> 5)
BDS2 = RRS
if RR > 15:
BDS = str(format(BDS1,"X")) + str(format(BDS2,"X"))
return {
"DI": di,
"IC": IC,
"LOS": lockout,
"PR": PR,
"RR": RR,
"RRS": RRS,
"BDS": BDS,
}

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@ -0,0 +1 @@
from __future__ import absolute_import, print_function, division

View File

@ -9,15 +9,15 @@ International Standard Atmosphere
p,rho,T = atmos(H) # atmos as function of geopotential altitude H [m]
a = vsound(H) # speed of sound [m/s] as function of H[m]
p = pressure(H) # calls atmos but returns only pressure [Pa]
p = pressure(H) # calls atmos but retruns only pressure [Pa]
T = temperature(H) # calculates temperature [K]
rho = density(H) # calls atmos but returns only pressure [Pa]
rho = density(H) # calls atmos but retruns only pressure [Pa]
Speed conversion at altitude H[m] in ISA
::
Mach = tas2mach(Vtas,H) # true airspeed (Vtas) to mach number conversion
Vtas = mach2tas(Mach,H) # mach number to true airspeed (Vtas) conversion
Vtas = mach2tas(Mach,H) # true airspeed (Vtas) to mach number conversion
Vtas = eas2tas(Veas,H) # equivalent airspeed to true airspeed, H in [m]
Veas = tas2eas(Vtas,H) # true airspeed to equivent airspeed, H in [m]
Vtas = cas2tas(Vcas,H) # Vcas to Vtas conversion both m/s, H in [m]
@ -35,18 +35,18 @@ ft = 0.3048 # ft -> m
fpm = 0.00508 # ft/min -> m/s
inch = 0.0254 # inch -> m
sqft = 0.09290304 # 1 square foot
nm = 1852 # nautical mile -> m
nm = 1852.0 # nautical mile -> m
lbs = 0.453592 # pound -> kg
g0 = 9.80665 # m/s2, Sea level gravity constant
R = 287.05287 # m2/(s2 x K), gas constant, sea level ISA
p0 = 101325 # Pa, air pressure, sea level ISA
p0 = 101325.0 # Pa, air pressure, sea level ISA
rho0 = 1.225 # kg/m3, air density, sea level ISA
T0 = 288.15 # K, temperature, sea level ISA
gamma = 1.40 # cp/cv for air
gamma1 = 0.2 # (gamma-1)/2 for air
gamma2 = 3.5 # gamma/(gamma-1) for air
beta = -0.0065 # [K/m] ISA temp gradient below tropopause
r_earth = 6371000 # m, average earth radius
r_earth = 6371000.0 # m, average earth radius
a0 = 340.293988 # m/s, sea level speed of sound ISA, sqrt(gamma*R*T0)
@ -94,8 +94,8 @@ def distance(lat1, lon1, lat2, lon2, H=0):
"""
# phi = 90 - latitude
phi1 = np.radians(90 - lat1)
phi2 = np.radians(90 - lat2)
phi1 = np.radians(90.0 - lat1)
phi2 = np.radians(90.0 - lat2)
# theta = longitude
theta1 = np.radians(lon1)
@ -158,16 +158,16 @@ def tas2eas(Vtas, H):
def cas2tas(Vcas, H):
"""Calibrated Airspeed to True Airspeed"""
p, rho, T = atmos(H)
qdyn = p0 * ((1 + rho0 * Vcas * Vcas / (7 * p0)) ** 3.5 - 1.0)
Vtas = np.sqrt(7 * p / rho * ((1 + qdyn / p) ** (2 / 7.0) - 1.0))
qdyn = p0 * ((1.0 + rho0 * Vcas * Vcas / (7.0 * p0)) ** 3.5 - 1.0)
Vtas = np.sqrt(7.0 * p / rho * ((1.0 + qdyn / p) ** (2.0 / 7.0) - 1.0))
return Vtas
def tas2cas(Vtas, H):
"""True Airspeed to Calibrated Airspeed"""
p, rho, T = atmos(H)
qdyn = p * ((1 + rho * Vtas * Vtas / (7 * p)) ** 3.5 - 1.0)
Vcas = np.sqrt(7 * p0 / rho0 * ((qdyn / p0 + 1.0) ** (2 / 7.0) - 1.0))
qdyn = p * ((1.0 + rho * Vtas * Vtas / (7.0 * p)) ** 3.5 - 1.0)
Vcas = np.sqrt(7.0 * p0 / rho0 * ((qdyn / p0 + 1.0) ** (2.0 / 7.0) - 1.0))
return Vcas

View File

@ -1,132 +1,93 @@
from __future__ import annotations
import time
import traceback
import numpy as np
import pyModeS as pms
from rtlsdr import RtlSdr
import time
from typing import Any
import_msg = """
---------------------------------------------------------------------
Warning: pyrtlsdr not installed (required for using RTL-SDR devices)!
---------------------------------------------------------------------"""
try:
import rtlsdr # type: ignore
except ImportError:
print(import_msg)
sampling_rate = 2e6
smaples_per_microsec = 2
modes_sample_rate = 2e6
modes_frequency = 1090e6
buffer_size = 1024 * 200
read_size = 1024 * 100
buffer_size = 1024 * 100
read_size = 1024 * 20
pbits = 8
fbits = 112
preamble = [1, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0]
th_amp = 0.2 # signal amplitude threshold for 0 and 1 bit
th_amp_diff = 0.8 # signal amplitude threshold difference between 0 and 1 bit
class RtlReader(object):
def __init__(self, **kwargs) -> None:
def __init__(self, **kwargs):
super(RtlReader, self).__init__()
self.signal_buffer: list[float] = [] # amplitude of the sample only
self.sdr = rtlsdr.RtlSdr()
self.sdr.sample_rate = sampling_rate
self.signal_buffer = []
self.sdr = RtlSdr()
self.sdr.sample_rate = modes_sample_rate
self.sdr.center_freq = modes_frequency
self.sdr.gain = "auto"
# sdr.freq_correction = 75
self.debug = kwargs.get("debug", False)
self.raw_pipe_in = None
self.stop_flag = False
self.noise_floor = 1e6
self.exception_queue = None
def _calc_noise(self) -> float:
"""Calculate noise floor"""
window = smaples_per_microsec * 100
total_len = len(self.signal_buffer)
means = (
np.array(self.signal_buffer[: total_len // window * window])
.reshape(-1, window)
.mean(axis=1)
)
return min(means)
def _process_buffer(self) -> list[list[Any]]:
"""process raw IQ data in the buffer"""
# update noise floor
self.noise_floor = min(self._calc_noise(), self.noise_floor)
# set minimum signal amplitude
min_sig_amp = 3.162 * self.noise_floor # 10 dB SNR
# Mode S messages
def _process_buffer(self):
messages = []
# signal_array = np.array(self.signal_buffer)
# pulses_array = np.where(np.array(self.signal_buffer) < th_amp, 0, 1)
# pulses = "".join(str(x) for x in pulses_array)
buffer_length = len(self.signal_buffer)
i = 0
while i < buffer_length:
if self.signal_buffer[i] < min_sig_amp:
if self.signal_buffer[i] < th_amp:
i += 1
continue
# if pulses[i : i + pbits * 2] == preamble:
if self._check_preamble(self.signal_buffer[i : i + pbits * 2]):
frame_start = i + pbits * 2
if self._check_preamble(self.signal_buffer[i:frame_start]):
frame_end = i + pbits * 2 + (fbits + 1) * 2
frame_length = (fbits + 1) * 2
frame_end = frame_start + frame_length
frame_pulses = self.signal_buffer[frame_start:frame_end]
threshold = max(frame_pulses) * 0.2
msgbin: list[int] = []
msgbin = ""
for j in range(0, frame_length, 2):
j_2 = j + 2
p2 = frame_pulses[j:j_2]
p2 = frame_pulses[j : j + 2]
if len(p2) < 2:
break
if p2[0] < threshold and p2[1] < threshold:
if p2[0] < th_amp and p2[1] < th_amp:
break
elif p2[0] >= p2[1]:
c = 1
c = "1"
elif p2[0] < p2[1]:
c = 0
c = "0"
else:
msgbin = []
msgbin = ""
break
msgbin.append(c)
msgbin += c
# advance i with a jump
i = frame_start + j
if len(msgbin) > 0:
msghex = pms.bin2hex("".join([str(i) for i in msgbin]))
msghex = pms.bin2hex(msgbin)
if self._check_msg(msghex):
messages.append([msghex, time.time()])
if self.debug:
self._debug_msg(msghex)
# elif i > buffer_length - 500:
# # save some for next process
# break
elif i > buffer_length - 500:
# save some for next process
break
else:
i += 1
# reset the buffer
# keep reminder of buffer for next iteration
self.signal_buffer = self.signal_buffer[i:]
return messages
def _check_preamble(self, pulses) -> bool:
def _check_preamble(self, pulses):
if len(pulses) != 16:
return False
@ -136,7 +97,7 @@ class RtlReader(object):
return True
def _check_msg(self, msg) -> bool:
def _check_msg(self, msg):
df = pms.df(msg)
msglen = len(msg)
if df == 17 and msglen == 28:
@ -146,9 +107,8 @@ class RtlReader(object):
return True
elif df in [4, 5, 11] and msglen == 14:
return True
return False
def _debug_msg(self, msg) -> None:
def _debug_msg(self, msg):
df = pms.df(msg)
msglen = len(msg)
if df == 17 and msglen == 28:
@ -161,42 +121,35 @@ class RtlReader(object):
# print("[*]", msg)
pass
def _read_callback(self, data, rtlsdr_obj) -> None:
def _read_callback(self, data, rtlsdr_obj):
# scaling signal (imporatant)
amp = np.absolute(data)
self.signal_buffer.extend(amp.tolist())
amp_norm = np.interp(amp, (amp.min(), amp.max()), (0, 1))
self.signal_buffer.extend(amp_norm.tolist())
if len(self.signal_buffer) >= buffer_size:
messages = self._process_buffer()
self.handle_messages(messages)
def handle_messages(self, messages) -> None:
def handle_messages(self, messages):
"""re-implement this method to handle the messages"""
for msg, t in messages:
# print("%15.9f %s" % (t, msg))
pass
def stop(self, *args, **kwargs) -> None:
self.sdr.close()
def stop(self, *args, **kwargs):
self.sdr.cancel_read_async()
def run(
self, raw_pipe_in=None, stop_flag=None, exception_queue=None
) -> None:
def run(self, raw_pipe_in=None, stop_flag=None):
self.raw_pipe_in = raw_pipe_in
self.exception_queue = exception_queue
self.stop_flag = stop_flag
self.sdr.read_samples_async(self._read_callback, read_size)
try:
# raise RuntimeError("test exception")
while True:
data = self.sdr.read_samples(read_size)
self._read_callback(data, None)
except Exception as e:
tb = traceback.format_exc()
if self.exception_queue is not None:
self.exception_queue.put(tb)
raise e
# count = 1
# while count < 1000:
# count += 1
# data = self.sdr.read_samples(read_size)
# self._read_callback(data, None)
if __name__ == "__main__":

View File

@ -1,12 +1,17 @@
"""Stream beast raw data from a TCP server, convert to mode-s messages."""
from __future__ import print_function, division
import os
import sys
import time
import pyModeS as pms
import traceback
import zmq
import math
if sys.version_info > (3, 0):
PY_VERSION = 3
else:
PY_VERSION = 2
class TcpClient(object):
@ -24,8 +29,6 @@ class TcpClient(object):
self.raw_pipe_in = None
self.stop_flag = False
self.exception_queue = None
def connect(self):
self.socket = zmq.Context().socket(zmq.STREAM)
self.socket.setsockopt(zmq.LINGER, 0)
@ -33,7 +36,7 @@ class TcpClient(object):
self.socket.connect("tcp://%s:%s" % (self.host, self.port))
def stop(self):
self.socket.close()
self.socket.disconnect()
def read_raw_buffer(self):
""" Read raw ADS-B data type.
@ -150,103 +153,6 @@ class TcpClient(object):
messages.append([msg, ts])
return messages
def read_beast_buffer_rssi_piaware(self):
"""Handle mode-s beast data type.
<esc> "1" : 6 byte MLAT timestamp, 1 byte signal level,
2 byte Mode-AC
<esc> "2" : 6 byte MLAT timestamp, 1 byte signal level,
7 byte Mode-S short frame
<esc> "3" : 6 byte MLAT timestamp, 1 byte signal level,
14 byte Mode-S long frame
<esc> "4" : 6 byte MLAT timestamp, status data, DIP switch
configuration settings (not on Mode-S Beast classic)
<esc><esc>: true 0x1a
<esc> is 0x1a, and "1", "2" and "3" are 0x31, 0x32 and 0x33
timestamp:
wiki.modesbeast.com/Radarcape:Firmware_Versions#The_GPS_timestamp
"""
messages_mlat = []
msg = []
i = 0
# process the buffer until the last divider <esc> 0x1a
# then, reset the self.buffer with the remainder
while i < len(self.buffer):
if self.buffer[i : i + 2] == [0x1A, 0x1A]:
msg.append(0x1A)
i += 1
elif (i == len(self.buffer) - 1) and (self.buffer[i] == 0x1A):
# special case where the last bit is 0x1a
msg.append(0x1A)
elif self.buffer[i] == 0x1A:
if i == len(self.buffer) - 1:
# special case where the last bit is 0x1a
msg.append(0x1A)
elif len(msg) > 0:
messages_mlat.append(msg)
msg = []
else:
msg.append(self.buffer[i])
i += 1
# save the reminder for next reading cycle, if not empty
if len(msg) > 0:
reminder = []
for i, m in enumerate(msg):
if (m == 0x1A) and (i < len(msg) - 1):
# rewind 0x1a, except when it is at the last bit
reminder.extend([m, m])
else:
reminder.append(m)
self.buffer = [0x1A] + msg
else:
self.buffer = []
# extract messages
messages = []
for mm in messages_mlat:
ts = time.time()
msgtype = mm[0]
# print(''.join('%02X' % i for i in mm))
if msgtype == 0x32:
# Mode-S Short Message, 7 byte, 14-len hexstr
msg = "".join("%02X" % i for i in mm[8:15])
elif msgtype == 0x33:
# Mode-S Long Message, 14 byte, 28-len hexstr
msg = "".join("%02X" % i for i in mm[8:22])
else:
# Other message tupe
continue
if len(msg) not in [14, 28]:
continue
'''
we get the raw 0-255 byte value (raw_rssi = mm[7])
we scale it to 0.0 - 1.0 (voltage = raw_rssi / 255)
we convert it to a dBFS power value (rolling the squaring of the voltage into the dB calculation)
'''
df = pms.df(msg)
raw_rssi = mm[7] # eighth byte of Mode-S message should contain RSSI value
rssi_ratio = raw_rssi / 255
signalLevel = rssi_ratio ** 2
dbfs_rssi = 10 * math.log10(signalLevel)
# skip incomplete message
if df in [0, 4, 5, 11] and len(msg) != 14:
continue
if df in [16, 17, 18, 19, 20, 21, 24] and len(msg) != 28:
continue
messages.append([msg, dbfs_rssi, ts])
return messages
def read_skysense_buffer(self):
"""Skysense stream format.
@ -264,7 +170,7 @@ class TcpClient(object):
Start character '$'
MS field - Payload
Position 1 through 14:
Postion 1 through 14:
14 bytes = 112 bits
Mode-S payload
In case of DF types that only carry 7 bytes of information
@ -348,9 +254,8 @@ class TcpClient(object):
for msg, t in messages:
print("%15.9f %s" % (t, msg))
def run(self, raw_pipe_in=None, stop_flag=None, exception_queue=None):
def run(self, raw_pipe_in=None, stop_flag=None):
self.raw_pipe_in = raw_pipe_in
self.exception_queue = exception_queue
self.stop_flag = stop_flag
self.connect()
@ -358,9 +263,17 @@ class TcpClient(object):
try:
received = [i for i in self.socket.recv(4096)]
if PY_VERSION == 2:
received = [ord(i) for i in received]
self.buffer.extend(received)
# print(''.join(x.encode('hex') for x in self.buffer))
# process self.buffer when it is longer enough
# if len(self.buffer) < 2048:
# continue
# -- Removed!! Cause delay in low data rate scenario --
if self.datatype == "beast":
messages = self.read_beast_buffer()
elif self.datatype == "raw":
@ -373,15 +286,22 @@ class TcpClient(object):
else:
self.handle_messages(messages)
# raise RuntimeError("test exception")
except zmq.error.Again:
continue
except Exception as e:
tb = traceback.format_exc()
if self.exception_queue is not None:
self.exception_queue.put(tb)
raise e
# Provides the user an option to supply the environment
# variable PYMODES_DEBUG to halt the execution
# for debugging purposes
debug_intent = os.environ.get("PYMODES_DEBUG", "false")
if debug_intent.lower() == "true":
traceback.print_exc()
sys.exit()
else:
print("Unexpected Error:", e)
try:
sock = self.connect()
time.sleep(1)
except Exception as e:
print("Unexpected Error:", e)
if __name__ == "__main__":
@ -390,7 +310,4 @@ if __name__ == "__main__":
port = int(sys.argv[2])
datatype = sys.argv[3]
client = TcpClient(host=host, port=port, datatype=datatype)
try:
client.run()
finally:
client.stop()

View File

View File

@ -1,6 +1,6 @@
from __future__ import absolute_import, print_function, division
import os
import time
import traceback
import datetime
import csv
import pyModeS as pms
@ -27,7 +27,7 @@ class Decode:
self.dumpto = None
def process_raw(self, adsb_ts, adsb_msg, commb_ts, commb_msg, tnow=None):
"""process a chunk of adsb and commb messages received in the same
"""process a chunk of adsb and commb messages recieved in the same
time period.
"""
if tnow is None:
@ -73,15 +73,8 @@ class Decode:
"VFOMr": None,
"PE_RCu": None,
"PE_VPL": None,
"hum44" : None,
"p44" : None,
"temp44" : None,
"turb44" : None,
"wind44" : None,
}
self.acs[icao]["tc"] = tc
self.acs[icao]["icao"] = icao
self.acs[icao]["t"] = t
self.acs[icao]["live"] = int(t)
@ -162,7 +155,7 @@ class Decode:
ac["nic_bc"] = pms.adsb.nic_b(msg)
if (5 <= tc <= 8) or (9 <= tc <= 18) or (20 <= tc <= 22):
ac["NUCp"], ac["HPL"], ac["RCu"], ac["RCv"] = pms.adsb.nuc_p(msg)
ac["HPL"], ac["RCu"], ac["RCv"] = pms.adsb.nuc_p(msg)
if (ac["ver"] == 1) and ("nic_s" in ac.keys()):
ac["Rc"], ac["VPL"] = pms.adsb.nic_v1(msg, ac["nic_s"])
@ -171,20 +164,20 @@ class Decode:
and ("nic_a" in ac.keys())
and ("nic_bc" in ac.keys())
):
ac["NIC"], ac["Rc"] = pms.adsb.nic_v2(msg, ac["nic_a"], ac["nic_bc"])
ac["Rc"] = pms.adsb.nic_v2(msg, ac["nic_a"], ac["nic_bc"])
if tc == 19:
ac["NUCv"], ac["HVE"], ac["VVE"] = pms.adsb.nuc_v(msg)
ac["HVE"], ac["VVE"] = pms.adsb.nuc_v(msg)
if ac["ver"] in [1, 2]:
ac["NACv"], ac["HFOMr"], ac["VFOMr"] = pms.adsb.nac_v(msg)
ac["HFOMr"], ac["VFOMr"] = pms.adsb.nac_v(msg)
if tc == 29:
ac["PE_RCu"], ac["PE_VPL"], ac["base"] = pms.adsb.sil(msg, ac["ver"])
ac["NACp"], ac["HEPU"], ac["VEPU"] = pms.adsb.nac_p(msg)
ac["EPU"], ac["VEPU"] = pms.adsb.nac_p(msg)
if tc == 31:
ac["ver"] = pms.adsb.version(msg)
ac["NACp"], ac["HEPU"], ac["VEPU"] = pms.adsb.nac_p(msg)
ac["EPU"], ac["VEPU"] = pms.adsb.nac_p(msg)
ac["PE_RCu"], ac["PE_VPL"], ac["sil_base"] = pms.adsb.sil(
msg, ac["ver"]
)
@ -201,8 +194,6 @@ class Decode:
if icao not in self.acs:
continue
self.acs[icao]["icao"] = icao
self.acs[icao]["t"] = t
self.acs[icao]["live"] = int(t)
bds = pms.bds.infer(msg)
@ -226,10 +217,8 @@ class Decode:
output_buffer.append([t, icao, "rtrk50", rtrk50])
if trk50:
self.acs[icao]["trk50"] = trk50
output_buffer.append([t, icao, "trk50", trk50])
if gs50:
self.acs[icao]["gs50"] = gs50
output_buffer.append([t, icao, "gs50", gs50])
elif bds == "BDS60":
@ -243,29 +232,16 @@ class Decode:
self.acs[icao]["t60"] = t
if ias60:
self.acs[icao]["ias"] = ias60
output_buffer.append([t, icao, "ias60", ias60])
if hdg60:
self.acs[icao]["hdg"] = hdg60
output_buffer.append([t, icao, "hdg60", hdg60])
if mach60:
self.acs[icao]["mach"] = mach60
output_buffer.append([t, icao, "mach60", mach60])
if roc60baro:
self.acs[icao]["roc60baro"] = roc60baro
output_buffer.append([t, icao, "roc60baro", roc60baro])
if roc60ins:
self.acs[icao]["roc60ins"] = roc60ins
output_buffer.append([t, icao, "roc60ins", roc60ins])
elif bds == "BDS44":
if(pms.commb.is44(msg)):
self.acs[icao]["hum44"] = pms.commb.hum44(msg)
self.acs[icao]["p44"] = pms.commb.p44(msg)
self.acs[icao]["temp44"] = pms.commb.temp44(msg)
self.acs[icao]["turb44"] = pms.commb.turb44(msg)
self.acs[icao]["wind44"] = pms.commb.wind44(msg)
# clear up old data
for icao in list(self.acs.keys()):
if self.t - self.acs[icao]["live"] > self.cache_timeout:
@ -283,14 +259,13 @@ class Decode:
return
def get_aircraft(self):
"""all aircraft that are stored in memory"""
"""all aircraft that are stored in memeory"""
acs = self.acs
return acs
def run(self, raw_pipe_out, ac_pipe_in, exception_queue):
def run(self, raw_pipe_out, ac_pipe_in):
local_buffer = []
while True:
try:
while raw_pipe_out.poll():
data = raw_pipe_out.recv()
local_buffer.append(data)
@ -307,7 +282,3 @@ class Decode:
acs = self.get_aircraft()
ac_pipe_in.send(acs)
time.sleep(0.001)
except Exception as e:
tb = traceback.format_exc()
exception_queue.put((e, tb))

134
pyModeS/streamer/modeslive Executable file
View File

@ -0,0 +1,134 @@
#!/usr/bin/env python
from __future__ import print_function, division
import os
import sys
import argparse
import curses
import signal
import multiprocessing
from pyModeS.streamer.decode import Decode
from pyModeS.streamer.screen import Screen
from pyModeS.streamer.source import NetSource, RtlSdrSource
# redirect all stdout to null, avoiding messing up with the screen
sys.stdout = open(os.devnull, "w")
support_rawtypes = ["raw", "beast", "skysense"]
parser = argparse.ArgumentParser()
parser.add_argument(
"--source",
help='Choose data source, "rtlsdr" or "net"',
required=True,
default="net",
)
parser.add_argument(
"--connect",
help="Define server, port and data type. Supported data types are: %s"
% support_rawtypes,
nargs=3,
metavar=("SERVER", "PORT", "DATATYPE"),
default=None,
required=False,
)
parser.add_argument(
"--latlon",
help="Receiver latitude and longitude, needed for the surface position, default none",
nargs=2,
metavar=("LAT", "LON"),
default=None,
required=False,
)
parser.add_argument(
"--show-uncertainty",
dest="uncertainty",
help="Display uncertainty values, default off",
action="store_true",
required=False,
default=False,
)
parser.add_argument(
"--dumpto",
help="Folder to dump decoded output, default none",
required=False,
default=None,
)
args = parser.parse_args()
SOURCE = args.source
LATLON = args.latlon
UNCERTAINTY = args.uncertainty
DUMPTO = args.dumpto
if SOURCE == "rtlsdr":
pass
elif SOURCE == "net":
if args.connect is None:
print("Error: --connect argument must not be empty.")
else:
SERVER, PORT, DATATYPE = args.connect
if DATATYPE not in support_rawtypes:
print("Data type not supported, avaiable ones are %s" % support_rawtypes)
else:
print('Source must be "rtlsdr" or "net".')
sys.exit(1)
if DUMPTO is not None:
# append to current folder except root is given
if DUMPTO[0] != "/":
DUMPTO = os.getcwd() + "/" + DUMPTO
if not os.path.isdir(DUMPTO):
print("Error: dump folder (%s) does not exist" % DUMPTO)
sys.exit(1)
# raw_event = multiprocessing.Event()
# ac_event = multiprocessing.Event()
# raw_queue = multiprocessing.Queue()
# ac_queue = multiprocessing.Queue()
raw_pipe_in, raw_pipe_out = multiprocessing.Pipe()
ac_pipe_in, ac_pipe_out = multiprocessing.Pipe()
stop_flag = multiprocessing.Value("b", False)
if SOURCE == "net":
source = NetSource(host=SERVER, port=PORT, rawtype=DATATYPE)
elif SOURCE == "rtlsdr":
source = RtlSdrSource()
recv_process = multiprocessing.Process(target=source.run, args=(raw_pipe_in, stop_flag))
decode = Decode(latlon=LATLON, dumpto=DUMPTO)
decode_process = multiprocessing.Process(
target=decode.run, args=(raw_pipe_out, ac_pipe_in)
)
screen = Screen(uncertainty=UNCERTAINTY)
screen_process = multiprocessing.Process(target=screen.run, args=(ac_pipe_out,))
def closeall(signal, frame):
print("KeyboardInterrupt (ID: {}). Cleaning up...".format(signal))
stop_flag.value = True
curses.endwin()
recv_process.terminate()
decode_process.terminate()
screen_process.terminate()
recv_process.join()
decode_process.join()
screen_process.join()
exit(0)
signal.signal(signal.SIGINT, closeall)
recv_process.start()
decode_process.start()
screen_process.start()

View File

@ -1,155 +0,0 @@
#!/usr/bin/env python
import os
import sys
import time
import argparse
import curses
import signal
import multiprocessing
from pyModeS.streamer.decode import Decode
from pyModeS.streamer.screen import Screen
from pyModeS.streamer.source import NetSource, RtlSdrSource # , RtlSdrSource24
def main():
support_rawtypes = ["raw", "beast", "skysense"]
parser = argparse.ArgumentParser()
parser.add_argument(
"--source",
help='Choose data source, "rtlsdr", "rtlsdr24" or "net"',
required=True,
default="net",
)
parser.add_argument(
"--connect",
help="Define server, port and data type. Supported data types are: {}".format(
support_rawtypes
),
nargs=3,
metavar=("SERVER", "PORT", "DATATYPE"),
default=None,
required=False,
)
parser.add_argument(
"--latlon",
help="Receiver latitude and longitude, needed for the surface position, default none",
nargs=2,
metavar=("LAT", "LON"),
default=None,
required=False,
)
parser.add_argument(
"--show-uncertainty",
dest="uncertainty",
help="Display uncertainty values, default off",
action="store_true",
required=False,
default=False,
)
parser.add_argument(
"--dumpto",
help="Folder to dump decoded output, default none",
required=False,
default=None,
)
args = parser.parse_args()
SOURCE = args.source
LATLON = args.latlon
UNCERTAINTY = args.uncertainty
DUMPTO = args.dumpto
if SOURCE in ["rtlsdr", "rtlsdr24"]:
pass
elif SOURCE == "net":
if args.connect is None:
print("Error: --connect argument must not be empty.")
else:
SERVER, PORT, DATATYPE = args.connect
if DATATYPE not in support_rawtypes:
print(
"Data type not supported, available ones are %s"
% support_rawtypes
)
else:
print('Source must be "rtlsdr" or "net".')
sys.exit(1)
if DUMPTO is not None:
# append to current folder except root is given
if DUMPTO[0] != "/":
DUMPTO = os.getcwd() + "/" + DUMPTO
if not os.path.isdir(DUMPTO):
print("Error: dump folder (%s) does not exist" % DUMPTO)
sys.exit(1)
# redirect all stdout to null, avoiding messing up with the screen
sys.stdout = open(os.devnull, "w")
raw_pipe_in, raw_pipe_out = multiprocessing.Pipe()
ac_pipe_in, ac_pipe_out = multiprocessing.Pipe()
exception_queue = multiprocessing.Queue()
stop_flag = multiprocessing.Value("b", False)
if SOURCE == "net":
source = NetSource(host=SERVER, port=PORT, rawtype=DATATYPE)
elif SOURCE == "rtlsdr":
source = RtlSdrSource()
# elif SOURCE == "rtlsdr24":
# source = RtlSdrSource24()
recv_process = multiprocessing.Process(
target=source.run, args=(raw_pipe_in, stop_flag, exception_queue)
)
decode = Decode(latlon=LATLON, dumpto=DUMPTO)
decode_process = multiprocessing.Process(
target=decode.run, args=(raw_pipe_out, ac_pipe_in, exception_queue)
)
screen = Screen(uncertainty=UNCERTAINTY)
screen_process = multiprocessing.Process(
target=screen.run, args=(ac_pipe_out, exception_queue)
)
def shutdown():
stop_flag.value = True
curses.endwin()
sys.stdout = sys.__stdout__
recv_process.terminate()
decode_process.terminate()
screen_process.terminate()
recv_process.join()
decode_process.join()
screen_process.join()
def closeall(signal, frame):
print("KeyboardInterrupt (ID: {}). Cleaning up...".format(signal))
shutdown()
sys.exit(0)
signal.signal(signal.SIGINT, closeall)
recv_process.start()
decode_process.start()
screen_process.start()
while True:
if (
(not recv_process.is_alive())
or (not decode_process.is_alive())
or (not screen_process.is_alive())
):
shutdown()
while not exception_queue.empty():
trackback = exception_queue.get()
print(trackback)
sys.exit(1)
time.sleep(0.01)

View File

@ -1,8 +1,8 @@
from __future__ import print_function, division
import curses
import numpy as np
import time
import threading
import traceback
COLUMNS = [
("call", 10),
@ -187,16 +187,12 @@ class Screen(object):
self.screen.refresh()
self.draw_frame()
def run(self, ac_pipe_out, exception_queue):
def run(self, ac_pipe_out):
local_buffer = []
key_thread = threading.Thread(target=self.kye_handling)
key_thread.daemon = True
key_thread.start()
while True:
try:
# raise RuntimeError("test exception")
while ac_pipe_out.poll():
acs = ac_pipe_out.recv()
local_buffer.append(acs)
@ -206,13 +202,9 @@ class Screen(object):
local_buffer = []
try:
self.update()
except curses.error:
except:
pass
except Exception as e:
tb = traceback.format_exc()
exception_queue.put(tb)
time.sleep(0.1)
raise e
time.sleep(0.001)

View File

@ -1,60 +0,0 @@
[tool.poetry]
name = "pyModeS"
version = "2.18"
description = "Python Mode-S and ADS-B Decoder"
authors = ["Junzi Sun <j.sun-1@tudelft.nl>"]
license = "GNU GPL v3"
readme = "README.rst"
classifiers = [
"Development Status :: 4 - Beta",
"Intended Audience :: Developers",
"Topic :: Software Development :: Libraries",
"License :: OSI Approved :: GNU General Public License v3 (GPLv3)",
"Programming Language :: Python :: 3",
"Typing :: Typed",
]
packages = [{ include = "pyModeS", from = "." }]
include = [
"LICENSE",
"*.pyx",
"*.pxd",
"*.pyi",
"py.typed",
{ path = "pyModeS/**/*.so", format = "wheel" },
{ path = "pyModeS/**/*.pyd", format = "wheel" },
]
build = "build.py"
[tool.poetry.scripts]
modeslive = "pyModeS.streamer.modeslive:main"
[tool.poetry.dependencies]
python = ">=3.9"
numpy = ">=1.26"
pyzmq = ">=24.0"
pyrtlsdr = { version = ">=0.2.93", optional = true }
[tool.poetry.group.dev.dependencies]
mypy = ">=0.991"
flake8 = ">=5.0.0"
black = ">=22.12.0"
isort = ">=5.11.4"
pytest = ">=7.2.0"
pytest-cov = ">=4.0.0"
codecov = ">=2.1.12"
[tool.poetry.extras]
rtlsdr = ["pyrtlsdr"]
[tool.black]
line-length = 80
target_version = ['py39', 'py310', 'py311', 'py312']
include = '\.pyi?$'
[tool.isort]
line_length = 80
profile = "black"
[build-system]
requires = ["poetry-core>=1.0.0", "Cython>=0.29.32", "setuptools>=69.1.1"]
build-backend = "poetry.core.masonry.api"

109
setup.py Normal file
View File

@ -0,0 +1,109 @@
"""A setuptools based setup module.
See:
https://packaging.python.org/en/latest/distributing.html
https://github.com/pypa/sampleproject
Steps for deploying a new verison:
1. Increase the version number
2. remove the old deployment under [dist] and [build] folder
3. run: python setup.py sdist
run: python setup.py bdist_wheel --universal
4. twine upload dist/*
"""
# Always prefer setuptools over distutils
from setuptools import setup, find_packages
# Compile some parts
from setuptools.extension import Extension
from Cython.Build import cythonize
extensions = [Extension("pyModeS.decoder.c_common", ["pyModeS/decoder/c_common.pyx"])]
# To use a consistent encoding
from codecs import open
from os import path
here = path.abspath(path.dirname(__file__))
# Get the long description from the README file
with open(path.join(here, "README.rst"), encoding="utf-8") as f:
long_description = f.read()
setup(
name="pyModeS",
# Versions should comply with PEP440. For a discussion on single-sourcing
# the version across setup.py and the project code, see
# https://packaging.python.org/en/latest/single_source_version.html
version="2.4",
description="Python Mode-S and ADS-B Decoder",
long_description=long_description,
# The project's main homepage.
url="https://github.com/junzis/pyModeS",
# Author details
author="Junzi Sun",
author_email="j.sun-1@tudelft.nl",
# Choose your license
license="GNU GPL v3",
# See https://pypi.python.org/pypi?%3Aaction=list_classifiers
classifiers=[
# How mature is this project? Common values are
# 3 - Alpha
# 4 - Beta
# 5 - Production/Stable
"Development Status :: 4 - Beta",
# Indicate who your project is intended for
"Intended Audience :: Developers",
"Topic :: Software Development :: Libraries",
# Pick your license as you wish (should match "license" above)
"License :: OSI Approved :: GNU General Public License v3 (GPLv3)",
# Specify the Python versions you support here. In particular, ensure
# that you indicate whether you support Python 2, Python 3 or both.
"Programming Language :: Python :: 2",
"Programming Language :: Python :: 3",
],
ext_modules=cythonize(extensions),
# What does your project relate to?
keywords="Mode-S ADS-B EHS ELS Comm-B",
# You can just specify the packages manually here if your project is
# simple. Or you can use find_packages().
packages=find_packages(exclude=["contrib", "docs", "tests"]),
# Alternatively, if you want to distribute just a my_module.py, uncomment
# this:
# py_modules=["my_module"],
# List run-time dependencies here. These will be installed by pip when
# your project is installed. For an analysis of "install_requires" vs pip's
# requirements files see:
# https://packaging.python.org/en/latest/requirements.html
install_requires=["numpy", "argparse", "pyzmq", "pyrtlsdr"],
# List additional groups of dependencies here (e.g. development
# dependencies). You can install these using the following syntax,
# for example:
# $ pip install -e .[dev,test]
# extras_require={
# 'dev': ['check-manifest'],
# 'test': ['coverage'],
# },
# If there are data files included in your packages that need to be
# installed, specify them here. If using Python 2.6 or less, then these
# have to be included in MANIFEST.in as well.
# package_data={
# 'sample': ['package_data.dat'],
# },
# Although 'package_data' is the preferred approach, in some case you may
# need to place data files outside of your packages. See:
# http://docs.python.org/3.4/distutils/setupscript.html#installing-additional-files # noqa
# In this case, 'data_file' will be installed into '<sys.prefix>/my_data'
# data_files=[('my_data', ['data/data_file'])],
# To provide executable scripts, use entry points in preference to the
# "scripts" keyword. Entry points provide cross-platform support and allow
# pip to create the appropriate form of executable for the target platform.
# entry_points={
# 'console_scripts': [
# 'sample=sample:main',
# ],
# },
scripts=["pyModeS/streamer/modeslive"],
)

View File

@ -1,7 +1,11 @@
import csv
import sys
import time
import csv
from pyModeS.decoder import adsb
if len(sys.argv) > 1 and sys.argv[1] == "cython":
from pyModeS.c_decoder import adsb
else:
from pyModeS.decoder import adsb
print("===== Decode ADS-B sample data=====")

View File

@ -1,3 +1,4 @@
from __future__ import print_function
from pyModeS import commb, common, bds
# === Decode sample data file ===
@ -46,7 +47,7 @@ def bds_info(BDS, m):
)
else:
info = []
info = None
return info
@ -87,5 +88,5 @@ def commb_decode_all(df, n=None):
if __name__ == "__main__":
commb_decode_all(df=20, n=500)
commb_decode_all(df=21, n=500)
commb_decode_all(df=20, n=100)
commb_decode_all(df=21, n=100)

View File

@ -1,5 +1,4 @@
from pyModeS import adsb
from pytest import approx
# === TEST ADS-B package ===
@ -23,7 +22,7 @@ def test_adsb_position():
1446332400,
1446332405,
)
assert pos == (approx(49.81755, 0.001), approx(6.08442, 0.001))
assert pos == (49.81755, 6.08442)
def test_adsb_position_swap_odd_even():
@ -33,32 +32,26 @@ def test_adsb_position_swap_odd_even():
1446332405,
1446332400,
)
assert pos == (approx(49.81755, 0.001), approx(6.08442, 0.001))
assert pos == (49.81755, 6.08442)
def test_adsb_position_with_ref():
pos = adsb.position_with_ref("8D40058B58C901375147EFD09357", 49.0, 6.0)
assert pos == (approx(49.82410, 0.001), approx(6.06785, 0.001))
assert pos == (49.82410, 6.06785)
pos = adsb.position_with_ref("8FC8200A3AB8F5F893096B000000", -43.5, 172.5)
assert pos == (approx(-43.48564, 0.001), approx(172.53942, 0.001))
assert pos == (-43.48564, 172.53942)
def test_adsb_airborne_position_with_ref():
pos = adsb.airborne_position_with_ref(
"8D40058B58C901375147EFD09357", 49.0, 6.0
)
assert pos == (approx(49.82410, 0.001), approx(6.06785, 0.001))
pos = adsb.airborne_position_with_ref(
"8D40058B58C904A87F402D3B8C59", 49.0, 6.0
)
assert pos == (approx(49.81755, 0.001), approx(6.08442, 0.001))
pos = adsb.airborne_position_with_ref("8D40058B58C901375147EFD09357", 49.0, 6.0)
assert pos == (49.82410, 6.06785)
pos = adsb.airborne_position_with_ref("8D40058B58C904A87F402D3B8C59", 49.0, 6.0)
assert pos == (49.81755, 6.08442)
def test_adsb_surface_position_with_ref():
pos = adsb.surface_position_with_ref(
"8FC8200A3AB8F5F893096B000000", -43.5, 172.5
)
assert pos == (approx(-43.48564, 0.001), approx(172.53942, 0.001))
pos = adsb.surface_position_with_ref("8FC8200A3AB8F5F893096B000000", -43.5, 172.5)
assert pos == (-43.48564, 172.53942)
def test_adsb_surface_position():
@ -70,7 +63,7 @@ def test_adsb_surface_position():
-43.496,
172.558,
)
assert pos == (approx(-43.48564, 0.001), approx(172.53942, 0.001))
assert pos == (-43.48564, 172.53942)
def test_adsb_alt():
@ -81,33 +74,12 @@ def test_adsb_velocity():
vgs = adsb.velocity("8D485020994409940838175B284F")
vas = adsb.velocity("8DA05F219B06B6AF189400CBC33F")
vgs_surface = adsb.velocity("8FC8200A3AB8F5F893096B000000")
assert vgs == (159, approx(182.88, 0.1), -832, "GS")
assert vas == (375, approx(243.98, 0.1), -2304, "TAS")
assert vgs_surface == (19, approx(42.2, 0.1), 0, "GS")
assert vgs == (159, 182.88, -832, "GS")
assert vas == (375, 243.98, -2304, "TAS")
assert vgs_surface == (19.0, 42.2, 0, "GS")
assert adsb.altitude_diff("8D485020994409940838175B284F") == 550
def test_adsb_emergency():
assert not adsb.is_emergency("8DA2C1B6E112B600000000760759")
assert adsb.emergency_state("8DA2C1B6E112B600000000760759") == 0
assert adsb.emergency_squawk("8DA2C1B6E112B600000000760759") == "6513"
def test_adsb_target_state_status():
sel_alt = adsb.selected_altitude("8DA05629EA21485CBF3F8CADAEEB")
assert sel_alt == (16992, "MCP/FCU")
assert adsb.baro_pressure_setting("8DA05629EA21485CBF3F8CADAEEB") == 1012.8
assert adsb.selected_heading("8DA05629EA21485CBF3F8CADAEEB") == approx(
66.8, 0.1
)
assert adsb.autopilot("8DA05629EA21485CBF3F8CADAEEB") is True
assert adsb.vnav_mode("8DA05629EA21485CBF3F8CADAEEB") is True
assert adsb.altitude_hold_mode("8DA05629EA21485CBF3F8CADAEEB") is False
assert adsb.approach_mode("8DA05629EA21485CBF3F8CADAEEB") is False
assert adsb.tcas_operational("8DA05629EA21485CBF3F8CADAEEB") is True
assert adsb.lnav_mode("8DA05629EA21485CBF3F8CADAEEB") is True
# def test_nic():
# assert adsb.nic('8D3C70A390AB11F55B8C57F65FE6') == 0
# assert adsb.nic('8DE1C9738A4A430B427D219C8225') == 1

View File

@ -1,13 +0,0 @@
from pyModeS import allcall
def test_icao():
assert allcall.icao("5D484FDEA248F5") == "484FDE"
def test_interrogator():
assert allcall.interrogator("5D484FDEA248F5") == "SI6"
def test_capability():
assert allcall.capability("5D484FDEA248F5")[0] == 5

View File

@ -1,12 +1,6 @@
import sys
import pytest
from pyModeS import bds
# this one fails on GitHub action for some unknown reason
# it looks successful on other Windows instances though
# TODO fix later
@pytest.mark.skipif(sys.platform == "win32", reason="GitHub Action")
def test_bds_infer():
assert bds.infer("8D406B902015A678D4D220AA4BDA") == "BDS08"
assert bds.infer("8FC8200A3AB8F5F893096B000000") == "BDS06"
@ -23,8 +17,8 @@ def test_bds_infer():
def test_bds_is50or60():
assert bds.is50or60("A0001838201584F23468207CDFA5", 0, 0, 0) == None
assert bds.is50or60("A8001EBCFFFB23286004A73F6A5B", 320, 250, 14000) == "BDS50"
assert bds.is50or60("A8001EBCFE1B29287FDCA807BCFC", 320, 250, 14000) == "BDS50"
assert bds.is50or60("A0000000FFDA9517000464000000", 182, 237, 1250) == "BDS50"
assert bds.is50or60("A0000000919A5927E23444000000", 413, 54, 18700) == "BDS60"
def test_surface_position():

View File

@ -1,60 +1,60 @@
try:
from pyModeS import c_common
from pyModeS.decoder import c_common as common
def test_conversions():
assert c_common.hex2bin("6E") == "01101110"
assert c_common.bin2hex("01101110") == "6E"
assert c_common.bin2hex("1101110") == "6E"
def test_crc_decode():
def test_conversions():
assert common.hex2bin("6E406B") == "011011100100000001101011"
assert c_common.crc("8D406B902015A678D4D220AA4BDA") == 0
assert c_common.crc("8d8960ed58bf053cf11bc5932b7d") == 0
assert c_common.crc("8d45cab390c39509496ca9a32912") == 0
assert c_common.crc("8d74802958c904e6ef4ba0184d5c") == 0
assert c_common.crc("8d4400cd9b0000b4f87000e71a10") == 0
assert c_common.crc("8d4065de58a1054a7ef0218e226a") == 0
assert c_common.crc("c80b2dca34aa21dd821a04cb64d4") == 10719924
assert c_common.crc("a800089d8094e33a6004e4b8a522") == 4805588
assert c_common.crc("a8000614a50b6d32bed000bbe0ed") == 5659991
assert c_common.crc("a0000410bc900010a40000f5f477") == 11727682
assert c_common.crc("8d4ca251204994b1c36e60a5343d") == 16
assert c_common.crc("b0001718c65632b0a82040715b65") == 353333
def test_crc_decode():
def test_crc_encode():
parity = c_common.crc("8D406B902015A678D4D220AA4BDA", encode=True)
assert common.crc("8D406B902015A678D4D220AA4BDA") == 0
assert common.crc("8d8960ed58bf053cf11bc5932b7d") == 0
assert common.crc("8d45cab390c39509496ca9a32912") == 0
assert common.crc("8d74802958c904e6ef4ba0184d5c") == 0
assert common.crc("8d4400cd9b0000b4f87000e71a10") == 0
assert common.crc("8d4065de58a1054a7ef0218e226a") == 0
assert common.crc("c80b2dca34aa21dd821a04cb64d4") == 10719924
assert common.crc("a800089d8094e33a6004e4b8a522") == 4805588
assert common.crc("a8000614a50b6d32bed000bbe0ed") == 5659991
assert common.crc("a0000410bc900010a40000f5f477") == 11727682
assert common.crc("8d4ca251204994b1c36e60a5343d") == 16
assert common.crc("b0001718c65632b0a82040715b65") == 353333
def test_crc_encode():
parity = common.crc("8D406B902015A678D4D220AA4BDA", encode=True)
assert parity == 11160538
def test_icao():
assert c_common.icao("8D406B902015A678D4D220AA4BDA") == "406B90"
assert c_common.icao("A0001839CA3800315800007448D9") == "400940"
assert c_common.icao("A000139381951536E024D4CCF6B5") == "3C4DD2"
assert c_common.icao("A000029CFFBAA11E2004727281F1") == "4243D0"
def test_modes_altcode():
assert c_common.altcode("A02014B400000000000000F9D514") == 32300
def test_modes_idcode():
assert c_common.idcode("A800292DFFBBA9383FFCEB903D01") == "1346"
def test_graycode_to_altitude():
assert c_common.gray2alt("00000000010") == -1000
assert c_common.gray2alt("00000001010") == -500
assert c_common.gray2alt("00000011011") == -100
assert c_common.gray2alt("00000011010") == 0
assert c_common.gray2alt("00000011110") == 100
assert c_common.gray2alt("00000010011") == 600
assert c_common.gray2alt("00000110010") == 1000
assert c_common.gray2alt("00001001001") == 5800
assert c_common.gray2alt("00011100100") == 10300
assert c_common.gray2alt("01100011010") == 32000
assert c_common.gray2alt("01110000100") == 46300
assert c_common.gray2alt("01010101100") == 50200
assert c_common.gray2alt("11011110100") == 73200
assert c_common.gray2alt("10000000011") == 126600
assert c_common.gray2alt("10000000001") == 126700
def test_icao():
assert common.icao("8D406B902015A678D4D220AA4BDA") == "406B90"
assert common.icao("A0001839CA3800315800007448D9") == "400940"
assert common.icao("A000139381951536E024D4CCF6B5") == "3C4DD2"
assert common.icao("A000029CFFBAA11E2004727281F1") == "4243D0"
except:
pass
def test_modes_altcode():
assert common.altcode("A02014B400000000000000F9D514") == 32300
def test_modes_idcode():
assert common.idcode("A800292DFFBBA9383FFCEB903D01") == "1346"
def test_graycode_to_altitude():
assert common.gray2alt("00000000010") == -1000
assert common.gray2alt("00000001010") == -500
assert common.gray2alt("00000011011") == -100
assert common.gray2alt("00000011010") == 0
assert common.gray2alt("00000011110") == 100
assert common.gray2alt("00000010011") == 600
assert common.gray2alt("00000110010") == 1000
assert common.gray2alt("00001001001") == 5800
assert common.gray2alt("00011100100") == 10300
assert common.gray2alt("01100011010") == 32000
assert common.gray2alt("01110000100") == 46300
assert common.gray2alt("01010101100") == 50200
assert common.gray2alt("11011110100") == 73200
assert common.gray2alt("10000000011") == 126600
assert common.gray2alt("10000000001") == 126700

View File

@ -1,5 +1,4 @@
from pyModeS import bds, commb
from pytest import approx
# from pyModeS import ehs, els # deprecated
@ -23,24 +22,30 @@ def test_bds40_functions():
def test_bds50_functions():
msg1 = "A000139381951536E024D4CCF6B5"
msg2 = "A0001691FFD263377FFCE02B2BF9"
assert bds.bds50.roll50("A000139381951536E024D4CCF6B5") == 2.1
assert bds.bds50.roll50("A0001691FFD263377FFCE02B2BF9") == -0.4 # signed value
assert bds.bds50.trk50("A000139381951536E024D4CCF6B5") == 114.258
assert bds.bds50.gs50("A000139381951536E024D4CCF6B5") == 438
assert bds.bds50.rtrk50("A000139381951536E024D4CCF6B5") == 0.125
assert bds.bds50.tas50("A000139381951536E024D4CCF6B5") == 424
for module in [bds.bds50, commb]:
assert module.roll50(msg1) == approx(2.1, 0.01)
assert module.roll50(msg2) == approx(-0.35, 0.01) # signed value
assert module.trk50(msg1) == approx(114.258, 0.1)
assert module.gs50(msg1) == 438
assert module.rtrk50(msg1) == 0.125
assert module.tas50(msg1) == 424
assert commb.roll50("A000139381951536E024D4CCF6B5") == 2.1
assert commb.roll50("A0001691FFD263377FFCE02B2BF9") == -0.4 # signed value
assert commb.trk50("A000139381951536E024D4CCF6B5") == 114.258
assert commb.gs50("A000139381951536E024D4CCF6B5") == 438
assert commb.rtrk50("A000139381951536E024D4CCF6B5") == 0.125
assert commb.tas50("A000139381951536E024D4CCF6B5") == 424
def test_bds60_functions():
msg = "A00004128F39F91A7E27C46ADC21"
assert bds.bds60.hdg60("A00004128F39F91A7E27C46ADC21") == 42.715
assert bds.bds60.ias60("A00004128F39F91A7E27C46ADC21") == 252
assert bds.bds60.mach60("A00004128F39F91A7E27C46ADC21") == 0.42
assert bds.bds60.vr60baro("A00004128F39F91A7E27C46ADC21") == -1920
assert bds.bds60.vr60ins("A00004128F39F91A7E27C46ADC21") == -1920
for module in [bds.bds60, commb]:
assert bds.bds60.hdg60(msg) == approx(42.71484)
assert bds.bds60.ias60(msg) == 252
assert bds.bds60.mach60(msg) == 0.42
assert bds.bds60.vr60baro(msg) == -1920
assert bds.bds60.vr60ins(msg) == -1920
assert commb.hdg60("A00004128F39F91A7E27C46ADC21") == 42.715
assert commb.ias60("A00004128F39F91A7E27C46ADC21") == 252
assert commb.mach60("A00004128F39F91A7E27C46ADC21") == 0.42
assert commb.vr60baro("A00004128F39F91A7E27C46ADC21") == -1920
assert commb.vr60ins("A00004128F39F91A7E27C46ADC21") == -1920

62
tests/test_common.py Normal file
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from pyModeS.decoder import common
def test_conversions():
assert common.hex2bin("6E406B") == "011011100100000001101011"
def test_crc_decode():
assert common.crc_legacy("8D406B902015A678D4D220AA4BDA") == 0
assert common.crc("8D406B902015A678D4D220AA4BDA") == 0
assert common.crc("8d8960ed58bf053cf11bc5932b7d") == 0
assert common.crc("8d45cab390c39509496ca9a32912") == 0
assert common.crc("8d49d3d4e1089d00000000744c3b") == 0
assert common.crc("8d74802958c904e6ef4ba0184d5c") == 0
assert common.crc("8d4400cd9b0000b4f87000e71a10") == 0
assert common.crc("8d4065de58a1054a7ef0218e226a") == 0
assert common.crc("c80b2dca34aa21dd821a04cb64d4") == 10719924
assert common.crc("a800089d8094e33a6004e4b8a522") == 4805588
assert common.crc("a8000614a50b6d32bed000bbe0ed") == 5659991
assert common.crc("a0000410bc900010a40000f5f477") == 11727682
assert common.crc("8d4ca251204994b1c36e60a5343d") == 16
assert common.crc("b0001718c65632b0a82040715b65") == 353333
def test_crc_encode():
parity = common.crc("8D406B902015A678D4D220AA4BDA", encode=True)
assert parity == 11160538
def test_icao():
assert common.icao("8D406B902015A678D4D220AA4BDA") == "406B90"
assert common.icao("A0001839CA3800315800007448D9") == "400940"
assert common.icao("A000139381951536E024D4CCF6B5") == "3C4DD2"
assert common.icao("A000029CFFBAA11E2004727281F1") == "4243D0"
def test_modes_altcode():
assert common.altcode("A02014B400000000000000F9D514") == 32300
def test_modes_idcode():
assert common.idcode("A800292DFFBBA9383FFCEB903D01") == "1346"
def test_graycode_to_altitude():
assert common.gray2alt("00000000010") == -1000
assert common.gray2alt("00000001010") == -500
assert common.gray2alt("00000011011") == -100
assert common.gray2alt("00000011010") == 0
assert common.gray2alt("00000011110") == 100
assert common.gray2alt("00000010011") == 600
assert common.gray2alt("00000110010") == 1000
assert common.gray2alt("00001001001") == 5800
assert common.gray2alt("00011100100") == 10300
assert common.gray2alt("01100011010") == 32000
assert common.gray2alt("01110000100") == 46300
assert common.gray2alt("01010101100") == 50200
assert common.gray2alt("11011110100") == 73200
assert common.gray2alt("10000000011") == 126600
assert common.gray2alt("10000000001") == 126700

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from pyModeS import py_common
def test_conversions():
assert py_common.hex2bin("6E") == "01101110"
assert py_common.bin2hex("01101110") == "6E"
assert py_common.bin2hex("1101110") == "6E"
def test_crc_decode():
assert py_common.crc_legacy("8D406B902015A678D4D220AA4BDA") == 0
assert py_common.crc("8D406B902015A678D4D220AA4BDA") == 0
assert py_common.crc("8d8960ed58bf053cf11bc5932b7d") == 0
assert py_common.crc("8d45cab390c39509496ca9a32912") == 0
assert py_common.crc("8d49d3d4e1089d00000000744c3b") == 0
assert py_common.crc("8d74802958c904e6ef4ba0184d5c") == 0
assert py_common.crc("8d4400cd9b0000b4f87000e71a10") == 0
assert py_common.crc("8d4065de58a1054a7ef0218e226a") == 0
assert py_common.crc("c80b2dca34aa21dd821a04cb64d4") == 10719924
assert py_common.crc("a800089d8094e33a6004e4b8a522") == 4805588
assert py_common.crc("a8000614a50b6d32bed000bbe0ed") == 5659991
assert py_common.crc("a0000410bc900010a40000f5f477") == 11727682
assert py_common.crc("8d4ca251204994b1c36e60a5343d") == 16
assert py_common.crc("b0001718c65632b0a82040715b65") == 353333
def test_crc_encode():
parity = py_common.crc("8D406B902015A678D4D220AA4BDA", encode=True)
assert parity == 11160538
def test_icao():
assert py_common.icao("8D406B902015A678D4D220AA4BDA") == "406B90"
assert py_common.icao("A0001839CA3800315800007448D9") == "400940"
assert py_common.icao("A000139381951536E024D4CCF6B5") == "3C4DD2"
assert py_common.icao("A000029CFFBAA11E2004727281F1") == "4243D0"
def test_modes_altcode():
assert py_common.altcode("A02014B400000000000000F9D514") == 32300
def test_modes_idcode():
assert py_common.idcode("A800292DFFBBA9383FFCEB903D01") == "1346"
def test_graycode_to_altitude():
assert py_common.gray2alt("00000000010") == -1000
assert py_common.gray2alt("00000001010") == -500
assert py_common.gray2alt("00000011011") == -100
assert py_common.gray2alt("00000011010") == 0
assert py_common.gray2alt("00000011110") == 100
assert py_common.gray2alt("00000010011") == 600
assert py_common.gray2alt("00000110010") == 1000
assert py_common.gray2alt("00001001001") == 5800
assert py_common.gray2alt("00011100100") == 10300
assert py_common.gray2alt("01100011010") == 32000
assert py_common.gray2alt("01110000100") == 46300
assert py_common.gray2alt("01010101100") == 50200
assert py_common.gray2alt("11011110100") == 73200
assert py_common.gray2alt("10000000011") == 126600
assert py_common.gray2alt("10000000001") == 126700

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from pyModeS import surv
def test_fs():
assert surv.fs("2A00516D492B80")[0] == 2
def test_dr():
assert surv.dr("2A00516D492B80")[0] == 0
def test_um():
assert surv.um("200CBE4ED80137")[0] == 9
assert surv.um("200CBE4ED80137")[1] == 1
def test_identity():
assert surv.identity("2A00516D492B80") == "0356"
def test_altitude():
assert surv.altitude("20001718029FCD") == 36000