Commit Graph

19 Commits

Author SHA1 Message Date
Nick Foster
79aee53a52 Subscribe to *all* the servers. 2013-06-05 16:05:14 -04:00
Nick Foster
f62813f039 Add getters/setters in preamble/slicer, bring them out to radio.py via pubsub. 2013-06-05 15:56:09 -04:00
Nick Foster
ba55d24e92 Don't use commit() on each SQL insert, it makes things terrislow. 2013-06-03 09:07:36 -04:00
Nick Foster
b71c978e27 New universal pubsub interface in zmq_socket.py. Needs more work. 2013-06-03 08:38:26 -04:00
Nick Foster
33874893b7 Better exception handling in sql.py 2013-05-30 17:17:15 -04:00
Nick Foster
4216b96262 Threading fixes for ZMQ work. Also moved radio optparse options into radio.py. 2013-05-30 00:58:03 -07:00
Nick Foster
4d569f9112 In progress, temp commit. Have removed pubsub interface in favor of 0MQ sockets -- this gets us free message-passing across network or local host. 2013-05-29 14:18:15 -07:00
Nick Foster
db34eca30e Refactored modes_rx to use a more modular radio interface (radio.py) using a pubsub pattern to formalize the old "outputs" interface I was using. Should make it easier to reuse the radio interface. 2013-05-27 19:50:42 -07:00
Johnathan Corgan
7ad09f5b14 Added option for pulse matched filtering
Pulse matched filtering places a boxcar filter upstream of the
averager and preamble detector.  The filter length is equivalent
to the number of samples in one Mode S chip (0.5us).  This
technique enhances operation when using sample rates > 4Msps.

When using --pmf, the threshold may need to be reduced a dB or
two from what would have been optimal without --pmf.

* rx_path.py now takes 'use_pmf', defaults to False

* modes_rx has new CLI option '-p' or '--pmf' to turn on PMF

* modes_gui has new checkbox on Setup tab
2012-10-29 09:37:18 -07:00
Johnathan Corgan
62304ff59e Refactor flowgraph into hierarchical block
This commit creates air_modes.rx_path, which is the common portion
of the flowgraph once the sample source and possible resampler are
created.  It takes baseband I/Q and emits Mode-S packets into the
supplied message queue.
2012-10-15 09:27:22 -07:00
Nick Foster
85da74b43a Fix preamble/slicer dB numbers. Was using power ratios for voltages (2.0 instead of 1.414 for 3dB, etc.). No real performance change.
Fix suggested by Denis Gapotchenko.
2012-10-13 20:55:45 -07:00
Nick Foster
67b58d7204 Use a common lock for the KMLgen and SQL threads to keep them from stepping on each other when reading the SQLite db 2012-10-09 23:31:02 -07:00
Nick Foster
4b70c5a0b0 Up the sample rate for RTL dongles to 3.2Msps. Seems to enjoy 3.2Msps just fine, and the Mode S RX works *much* better with the extra bandwidth. 2012-08-23 19:24:06 -07:00
Nick Foster
10f96bf35d Merge branch 'master' into qtapp 2012-07-17 14:31:52 -07:00
Nick Foster
3163fca47a Renamed everything in python/ for consistent namespace 2012-07-16 20:59:37 -07:00
Nick Foster
4fbda15afc Merge branch 'parse' into qtapp
Conflicts:
	python/modes_parse.py
2012-07-16 09:40:05 -07:00
Nick Foster
8439e0e5f3 Parser and error-handling changes. 2012-07-07 11:04:49 -07:00
Nick Foster
b4cafe0384 Setting up a model-view display for the airframe list. 2012-07-05 23:52:00 -07:00
Nick Foster
ec70a90bd5 CMake magic to find PyQt4 and build the main GUI from .ui. Also renamed uhd_modes.py -> modes_rx, and the GUI app -> modes_gui 2012-07-05 11:00:52 -07:00