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Remove local decoding from the CPR parser. Local decodes are only valid if you can guarantee <180nm reception range.

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Nick Foster 2012-06-18 18:31:10 -07:00
parent 6882329f8d
commit f6161f7c3b
1 changed files with 8 additions and 8 deletions
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16
python/cpr.py
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@ -221,15 +221,15 @@ class cpr_decoder:
if decoded_lat is not None:
self.lkplist[icao24] = [decoded_lat, decoded_lon, time.time()]
elif self.my_location is not None: #if we have a location, use it
[local_lat, local_lon] = cpr_resolve_local(self.my_location, [encoded_lat, encoded_lon], cpr_format, surface) #try local decoding
[rnge, bearing] = range_bearing(self.my_location, [local_lat, local_lon])
if rnge < validrange: #if the local decoding can be guaranteed valid
self.lkplist[icao24] = [local_lat, local_lon, time.time()] #update the local position for next time
[decoded_lat, decoded_lon] = [local_lat, local_lon]
#so we really can't guarantee that local decoding will work unless you are POSITIVE that you can't hear more than 180nm out.
#this will USUALLY work, but you can't guarantee it!
# elif self.my_location is not None: #if we have a location, use it
# [local_lat, local_lon] = cpr_resolve_local(self.my_location, [encoded_lat, encoded_lon], cpr_format, surface) #try local decoding
# [rnge, bearing] = range_bearing(self.my_location, [local_lat, local_lon])
# if rnge < validrange: #if the local decoding can be guaranteed valid
# self.lkplist[icao24] = [local_lat, local_lon, time.time()] #update the local position for next time
# [decoded_lat, decoded_lon] = [local_lat, local_lon]
#print "settled on position: %.6f, %.6f" % (decoded_lat, decoded_lon,)
if decoded_lat is not None and self.my_location is not None:
[rnge, bearing] = range_bearing(self.my_location, [decoded_lat, decoded_lon])
else: