Joe Taylor
57b6b2dca1
Set the "b90" search range once (in q65_decocd.f90) and share valies through q65.mod.
2021-01-08 09:42:07 -05:00
Joe Taylor
3b54196206
Remove two disused lines of code.
2021-01-07 13:37:12 -05:00
k9an
b21477b3ba
Fix a compiler warning.
2021-01-07 11:38:59 -06:00
Joe Taylor
f003ae653c
Silence compiler warning.
2021-01-07 12:00:11 -05:00
Steven Franke
353edc4718
Fix one more compiler warning.
2021-01-07 10:18:38 -06:00
Joe Taylor
5b0975bf45
Correct several flaws in message averaging. Still may want to handle MAXAVE better?
2021-01-07 11:13:43 -05:00
Steven Franke
b9d33bc998
Address compiler warnings in fst4/w code.
2021-01-07 10:05:53 -06:00
Joe Taylor
2194f3096a
Don't count lines with blank message in "ndecoded".
2021-01-06 21:44:49 -05:00
Joe Taylor
bc8d134135
Silence several compiler warnings.
2021-01-06 12:44:49 -05:00
Joe Taylor
aee0a1e851
Silence a compiler warning.
2021-01-06 10:58:25 -05:00
Bill Somerville
c7f2be4ba7
Initialize a variable
2021-01-06 15:49:51 +00:00
Bill Somerville
c407bc00f9
Revert "Mostly(?) temporary diagnostic tests."
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This reverts commit fb6fcdf35e5db16893a850c9e1641e80b934a5e5.
2021-01-06 15:48:21 +00:00
Bill Somerville
9b35eeaead
Revert "Add s1 to the diagnostic output."
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This reverts commit 5fe0bd350855f8a435c1ae3efa9ea7380ab87b86.
2021-01-06 15:48:07 +00:00
Joe Taylor
5fe0bd3508
Add s1 to the diagnostic output.
2021-01-06 10:30:05 -05:00
Joe Taylor
fb6fcdf35e
Mostly(?) temporary diagnostic tests.
2021-01-06 10:24:08 -05:00
Joe Taylor
47c8286db8
Disallow Q65 decodes with sum(dat4)=0: all 78 bita are zero.
2021-01-05 19:45:00 -05:00
Joe Taylor
4fb90e336e
Better orange sync curve. Clear message averaging after a successful decode.
2021-01-05 11:30:22 -05:00
Joe Taylor
f82356e199
q65sim: nonzero step size ==> Doppler tracking; otherwise, linear drift.
2021-01-05 10:42:19 -05:00
Joe Taylor
b8bd745816
Merge branch 'feat-fst280' of bitbucket.org:k1jt/wsjtx into feat-fst280
2021-01-05 09:53:54 -05:00
Joe Taylor
ea271152b8
Implement "orange sync curve", useful for multi-signal situation.
2021-01-04 14:38:02 -05:00
Bill Somerville
f2e9c1d91d
Merge branch 'develop' into feat-fst280
2021-01-04 15:53:21 +00:00
Bill Somerville
94977df845
Merge branch 'release-2.3.0' into develop
2021-01-04 15:38:06 +00:00
Bill Somerville
607a346cf1
Add new function needed for FST4W decoder updates
2021-01-04 15:35:32 +00:00
Steven Franke
0013b15120
Remove some debug code.
2021-01-04 15:00:05 +00:00
Steven Franke
46222c61ed
Add rudimentary sanity checks to the values parsed from FST4W_ALSO_FST4.
2021-01-04 15:00:05 +00:00
Steven Franke
41f587c240
Fix a conflict between noise baseline percentile level and noise blanker percentage. Both were using the npct variable. Add an option for an FST4 pass when in FST4W mode.
2021-01-04 15:00:05 +00:00
Steven Franke
0fef0cc6e6
Minor formatting change in fst4_decodes.dat.
2021-01-04 15:00:04 +00:00
Steven Franke
a38b48d13d
Minor format change for nutc in fst4_decodes.dat.
2021-01-04 15:00:04 +00:00
Steven Franke
a657ce29a7
FT8: Make nagain work.
2021-01-04 15:00:04 +00:00
Steven Franke
41297e8761
FT8: Commit the rest of the fix for the nagain crash.
2021-01-04 15:00:04 +00:00
Steven Franke
b51bda4806
FT8: Fix jt9 crash when nagain is invoked.
2021-01-04 15:00:04 +00:00
Steven Franke
4081be94e1
Avoid a possible of bounds error. Compute some more decode diagnostic data.
2021-01-04 15:00:03 +00:00
Steven Franke
fb7b751e6d
Remove hmod from command line parameters for fst4sim.
2021-01-04 15:00:03 +00:00
Steven Franke
701d517e6e
For fst4sim, use Lorentzian fading spectrum when fspread is negative.
2021-01-04 15:00:03 +00:00
Steven Franke
b087328fc1
Don't waste time on excess BP iterations when doing K=50. Decode a little deeper.
2021-01-04 15:00:03 +00:00
Steven Franke
8079d35561
Append decoder data to file fst4_decodes.dat instead of overwriting.
2021-01-04 15:00:02 +00:00
Steven Franke
89cbd177df
If file decdata is present in the data directory, then write detailed decoder data to file fst4_decodes.dat in the same directory.
2021-01-04 15:00:02 +00:00
Steven Franke
812bd29e54
FST4W: Use K=66 for first OSD decode attempt and for updating fst4w_calls.txt. Use K=50 for 2nd attempt.
2021-01-04 15:00:02 +00:00
Steven Franke
fc3e24f696
More work on K=50 decoding.
2021-01-04 15:00:01 +00:00
Steven Franke
65ff3ce05e
Remove some debug prints.
2021-01-04 15:00:01 +00:00
Steven Franke
11b7aa9429
Implements decoding of FST4W messages as (240,50) crc-less codewords.
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By cascading the full 24-bit crc generator matrix with the (240,74) LDPC code generator, create a (240,50) generator that is used to decode with approximately 1 dB better sensitivity than the (240,64) with 14-bit CRC approach that is normally used. This approach treats the CRC bits as additional parity bits and provides no means for identifying incorrect codewords. All codewords on the list generated by the OSD algorithm have CRCs that match the CRC of the message payload. Codewords are validated by unpacking the message and comparing the unpacked message with the list of stored callsign/grid pairs stored in the fst4w_calls.txt file.
2021-01-04 14:59:56 +00:00
Joe Taylor
662a43d3dd
Corrections to the frequency-drift feature in q65sim.
2021-01-04 09:07:03 -05:00
Joe Taylor
6074e4e3af
Options for introducing frequency drift and frequency steps (e.g. 10 Hz) in Q65 simulator.
2021-01-03 11:19:39 -05:00
Joe Taylor
a02cbabb99
Fix an off-by-1 bug introduced in the previous commit.
2021-01-03 11:18:14 -05:00
Joe Taylor
04b22ce250
Preparing to add solution for frequendy drift to q65_sync.f90.
2021-01-02 14:21:14 -05:00
Joe Taylor
bc58604d42
Allow optional frequency drift of simulated Q65 signals.
2021-01-02 13:09:47 -05:00
Joe Taylor
e5a8e80c49
Minor tweaks to Q^% decoding scheme.
2021-01-01 15:28:41 -05:00
Joe Taylor
6b351165f2
Re-introduce Q65 timer calls. Extend red sync baseline to minimum +/- 100 Hz.
2021-01-01 10:47:22 -05:00
Joe Taylor
8a4b5b6a40
Various tweaks to the Q65 decoder; new numbering of the end-of-line decoding flags.
2020-12-31 15:52:06 -05:00
Joe Taylor
bcbca02c08
Enforce Q65 ClrAvg action when requested. Tweak somne logic.
2020-12-30 16:12:02 -05:00
