FGFS-4.1/gr-air-modes
4
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Merge branch 'master' into qtapp

Browse Source
This commit is contained in:
Nick Foster 2012-08-15 20:15:55 -07:00
commit 73ca9e373e
7 changed files with 43 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
README
View File

@ -65,7 +65,7 @@ Implementation of ADS-B is mandatory in European airspace as well as
in Australia. North American implementation is still voluntary, with
a mandate arriving in 2020 via the FAA's "NextGen" program.
The receiver uhd_modes.py is written for use with Ettus Research USRP
The receiver modes_rx is written for use with Ettus Research USRP
devices, although the "RTLSDR" receivers are also supported via the
Osmocom driver. In theory, any receiver which outputs complex samples at
at least 2Msps should work via the file input or UDP input options, or
@ -122,10 +122,10 @@ install it on your system, generally in /usr/local/bin.
========================================================================
USAGE
The main application is uhd_modes.py. For a complete list of options,
The main application is modes_rx. For a complete list of options,
run:
$ uhd_modes.py --help
$ modes_rx --help
For use with Ettus UHD-compatible devices, the defaults should suffice
to receive reports and print to the screen. Use the -d option to look
@ -141,7 +141,7 @@ FILES
Interesting files and libraries included with the package:
* apps/uhd_modes.py: The main application.
* apps/modes_rx: The main application.
* apps/get_correlated_records.py: Demonstration program for computing
multilaterated time error for two unsynchronized receiver stations.
* lib/air_modes_int_and_dump.cc: Unused integrate-and-dump filter for

2
lib/air_modes_preamble.cc
View File

@ -157,7 +157,7 @@ int air_modes_preamble::general_work(int noutput_items,
//be sure we've got enough room in the input buffer to copy out a whole packet
if(ninputs-i < 240*d_samples_per_chip) {
consume_each(i-1);
consume_each(std::max(i-1,0));
return 0;
}

4
python/kml.py
View File

@ -73,7 +73,7 @@ class output_kml(threading.Thread):
bearing = i*(2*math.pi/steps) #in radians
lat_out = math.degrees(math.asin(math.sin(lat_rad)*math.cos(tmp0) + math.cos(lat_rad)*math.sin(tmp0)*math.cos(bearing)))
lon_out = center_lon + math.degrees(math.atan2(math.sin(bearing)*math.sin(tmp0)*math.cos(lat_rad), math.cos(tmp0)-math.sin(lat_rad)*math.sin(math.radians(lat_out))))
retstr += " %.8f, %.8f, 0" % (lon_out, lat_out,)
retstr += " %.8f,%.8f, 0" % (lon_out, lat_out,)
retstr = string.lstrip(retstr)
return retstr
@ -150,7 +150,7 @@ class output_kml(threading.Thread):
heading = 0
vertical = 0
#now generate some KML
retstr+= "\n\t\t<Placemark>\n\t\t\t<name>%s</name>\n\t\t\t<styleUrl>#airplane</styleUrl>\n\t\t\t<description>\n\t\t\t\t<![CDATA[Altitude: %s<br/>Heading: %i<br/>Speed: %i<br/>Vertical speed: %i<br/>ICAO: %x<br/>Last seen: %s]]>\n\t\t\t</description>\n\t\t\t<Point>\n\t\t\t\t<altitudeMode>absolute</altitudeMode>\n\t\t\t\t<extrude>1</extrude>\n\t\t\t\t<coordinates>%s,%s,%i</coordinates>\n\t\t\t</Point>\n\t\t</Placemark>" % (ident, alt, heading, speed, vertical, icao[0], seen, lon, lat, metric_alt, )
retstr+= "\n\t\t<Placemark>\n\t\t\t<name>%s</name>\n\t\t\t<Style><IconStyle><heading>%i</heading></IconStyle></Style>\n\t\t\t<styleUrl>#airplane</styleUrl>\n\t\t\t<description>\n\t\t\t\t<![CDATA[Altitude: %s<br/>Heading: %i<br/>Speed: %i<br/>Vertical speed: %i<br/>ICAO: %x<br/>Last seen: %s]]>\n\t\t\t</description>\n\t\t\t<Point>\n\t\t\t\t<altitudeMode>absolute</altitudeMode>\n\t\t\t\t<extrude>1</extrude>\n\t\t\t\t<coordinates>%s,%s,%i</coordinates>\n\t\t\t</Point>\n\t\t</Placemark>" % (ident, heading, alt, heading, speed, vertical, icao[0], seen, lon, lat, metric_alt, )
retstr+= "\n\t\t<Placemark>\n\t\t\t<styleUrl>#track</styleUrl>\n\t\t\t<LineString>\n\t\t\t\t<extrude>0</extrude>\n\t\t\t\t<altitudeMode>absolute</altitudeMode>\n\t\t\t\t<coordinates>%s</coordinates>\n\t\t\t</LineString>\n\t\t</Placemark>" % (trackstr,)

17
python/msprint.py
View File

@ -36,11 +36,10 @@ class output_print(air_modes.parse):
reference = float(reference)
timestamp = float(timestamp)
#TODO this is suspect
if reference == 0.0:
refdb = -150.0
else:
refdb = 10.0*math.log10(reference)
refdb = 20.0*math.log10(reference)
output = "(%.0f %.10f) " % (refdb, timestamp);
try:
@ -161,10 +160,18 @@ class output_print(air_modes.parse):
elif bdsreg == 0x09:
subtype = data["bds09"].get_type()
if subtype == 0 or subtype == 1:
parser = self.parseBDS09_0 if subtype == 0 else self.parseBDS09_1
[velocity, heading, vert_spd] = parser(data)
if subtype == 0:
[velocity, heading, vert_spd, turnrate] = self.parseBDS09_0(data)
retstr = "Type 17 BDS0,9-%i (track report) from %x with velocity %.0fkt heading %.0f VS %.0f turn rate %.0f" \
% (subtype, icao24, velocity, heading, vert_spd, turnrate)
elif subtype == 1:
[velocity, heading, vert_spd] = self.parseBDS09_1(data)
retstr = "Type 17 BDS0,9-%i (track report) from %x with velocity %.0fkt heading %.0f VS %.0f" % (subtype, icao24, velocity, heading, vert_spd)
elif subtype == 3:
[mag_hdg, vel_src, vel, vert_spd, geo_diff] = self.parseBDS09_3(data)
retstr = "Type 17 BDS0,9-%i (air course report) from %x with %s %.0fkt magnetic heading %.0f VS %.0f geo. diff. from baro. alt. %.0fft" \
% (subtype, icao24, vel_src, vel, mag_hdg, vert_spd, geo_diff)
else:
retstr = "Type 17 BDS0,9-%i from %x not implemented" % (subtype, icao24)

15
python/parse.py
View File

@ -345,6 +345,21 @@ class parse:
return [velocity, heading, vert_spd]
def parseBDS09_3(self, data):
#3: {"sub", "icf", "ifr", "nuc", "mhs", "hdg", "ast", "spd", "vrsrc",
# "dvr", "vr", "dhd", "hd"}
mag_hdg = data["mhs"] * 360. / 1024
vel_src = "TAS" if data["ast"] == 1 else "IAS"
vel = data["spd"]
if data["sub"] == 4:
vel *= 4
vert_spd = float(data["vr"] - 1) * 64
if data["dvr"] == 1:
vert_spd = 0 - vert_spd
geo_diff = float(data["hd"] - 1) * 25
return [mag_hdg, vel_src, vel, vert_spd, geo_diff]
def parseBDS62(self, data):
eps_strings = ["NO EMERGENCY", "GENERAL EMERGENCY", "LIFEGUARD/MEDICAL", "FUEL EMERGENCY",
"NO COMMUNICATIONS", "UNLAWFUL INTERFERENCE", "RESERVED", "RESERVED"]

2
python/sbs1.py
View File

@ -146,7 +146,7 @@ class output_sbs1(air_modes.parse):
def pp5(self, shortdata, ecc):
# I'm not sure what to do with the identiifcation shortdata & 0x1FFF
[datestr, timestr] = self.current_time()
[fs, dr, um] = self.parse5(shortdata)
[fs, dr, um, ident] = self.parse5(shortdata)
aircraft_id = self.get_aircraft_id(ecc)
retstr = "MSG,6,0,%i,%06X,%i,%s,%s,%s,%s,,,,,,,,," % (aircraft_id, ecc, aircraft_id+100, datestr, timestr, datestr, timestr)
return retstr + self.decode_fs(fs) + "\n"

10
python/sql.py
View File

@ -125,9 +125,13 @@ class output_sql(air_modes.parse):
elif bdsreg == 0x09:
subtype = data["bds09"].get_type()
if subtype == 0 or subtype == 1:
parser = self.parseBDS09_0 if subtype == 0 else self.parseBDS09_1
[velocity, heading, vert_spd] = parser(data)
if subtype == 0:
[velocity, heading, vert_spd, turnrate] = self.parseBDS09_0(data)
retstr = "INSERT INTO vectors (icao, seen, speed, heading, vertical) VALUES (" + "%i" % icao24 + ", datetime('now'), " + "%.0f" % velocity + ", " + "%.0f" % heading + ", " + "%.0f" % vert_spd + ")"
elif subtype == 1:
[velocity, heading, vert_spd] = self.parseBDS09_1(data)
retstr = "INSERT INTO vectors (icao, seen, speed, heading, vertical) VALUES (" + "%i" % icao24 + ", datetime('now'), " + "%.0f" % velocity + ", " + "%.0f" % heading + ", " + "%.0f" % vert_spd + ")"
else:
retstr = None
return retstr