0789d50fdf
Rework BitHistory, BitPattern, PacketBuilder.
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Templatize PacketBuilder to optionally bit unstuff, and have flexible packet termination behavior.
2015-11-09 14:38:09 -08:00
5dcca89172
FSKProcessor: remove separate channel filter.
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RRC filter alone will do the trick!
2015-11-07 14:10:44 -08:00
ddd34793a6
Default constructors and configure methods for baseband classes.
2015-11-06 09:40:05 -08:00
51df92a05a
Rename baseband_ais -> ais_baseband.
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So that ais_baseband and ais_application filenames can be sorted near each other.
2015-11-06 09:40:04 -08:00
26c23dc8a0
Use new FIR decimation in FSK demodulator.
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Reduces FIR calculation effort when output samples are skipped at FIR filter, not after.
2015-11-06 09:40:04 -08:00
424c0eac3f
FIRAndDecimateBy2Complex: expose decimation_factor, bring work function into class.
2015-11-06 09:40:04 -08:00
be78ed657f
Remove taps_count template arg for FIRAndDecimateBy2Complex.
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Use heap to allocate samples and taps buffers, so filters of different lengths can be supported.
2015-11-06 09:40:04 -08:00
015e5516d5
Update/consolidate AIS RRC matched filter taps.
2015-11-06 09:40:04 -08:00
dab801e167
AIS RX tweak of clock recovery constant for better performance.
2015-11-06 09:40:03 -08:00
58b97dea68
AIS RX performance improved with 32-tap RRC.
2015-11-06 09:40:03 -08:00
4aae77f565
MatchedFilter improvements
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Use single set of taps for positive and negative filters.
Reverse taps (since new samples are pushed into buffer from the high end).
Make complex multiply explicit to avoid fancy but irrelevant arithmetic checks.
Compute negative filter from conjugation of positive filter taps.
Move filter power and difference calculations into MatchedFilter.
2015-11-06 09:40:03 -08:00
4141d6fe0f
Untemplate MatchedFilter, a different way.
2015-11-06 09:40:02 -08:00
fe94cfa45a
De-std::vector MatchedFilter, was chewing up far too much memory.
2015-11-06 09:40:02 -08:00
d92c962c0c
Set MatchedFilter taps with separate method.
2015-11-06 09:40:02 -08:00
aff7865c61
Move (some) AIS bits to a separate file.
2015-11-06 09:40:02 -08:00
7a5100baf1
Enlarge packet payload size 256 -> 1024 bits.
2015-11-06 09:40:01 -08:00
474eaa8541
Template ClockRecovery for ErrorFilter type.
2015-11-06 09:40:01 -08:00
cf3bff3b03
Decouple PacketBuilder PayloadHandler function from method type.
2015-11-06 09:40:01 -08:00
36689f5c45
Refactor bit pattern matching.
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Remove AccessCodeCorrelator, Unstuff classes.
2015-11-06 09:40:00 -08:00
f918a774b7
Address implicit cast compiler warnings.
2015-11-06 09:40:00 -08:00
0bc8f551de
Use matched filter for AIS GMSK demodulation demo.
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Less than optimal for plain FSK, but flexible enough to also support GFSK/GMSK. Not at all optimized for SIMD instructions, so may not perform adequately at Bluetooth/GSM rates.
2015-11-06 09:40:00 -08:00
a3cce5632e
Complete rewrite of clock recovery, lots of refactoring.
2015-11-06 09:39:59 -08:00
c7907e948c
Extract FSKProcessor into separate files.
2015-08-27 13:31:39 -07:00
Jared Boone