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.
...
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
1f33c857ac
Measure fSpread from ccf1, then use resulting width to set effective ibwmin.
2020-12-19 13:25:51 -05:00
Joe Taylor
c7ca708569
Fix the problem with not honoring "Save Decoded" in Q65 mode.
2020-12-19 11:42:42 -05:00
Joe Taylor
f23129c33c
Fix a problem with Q65 FTol range extending down below 0 Hz.
2020-12-19 11:25:18 -05:00
Joe Taylor
7096a548ec
Correct a problem with estimating rms of ccf for Q65-300x submodes.
2020-12-19 10:42:27 -05:00
Joe Taylor
89ab3b0f01
Fix a bounds error with very small FTol.
2020-12-18 16:30:11 -05:00
Joe Taylor
450249dd4c
Add a DT label to the Q65 red sync curve.
2020-12-18 16:19:01 -05:00
Joe Taylor
67b82c7666
Remove the klunky 2D sync plot. The red sync curve is better.
2020-12-18 16:00:33 -05:00
Joe Taylor
b3769bb6c8
For Q65, plot a red "Sync curve" in the Wide Graph.
2020-12-18 13:31:14 -05:00
Joe Taylor
d165532dc5
Oops! Committed the wrong version of q65_decode.f90.
2020-12-17 19:06:07 -05:00
Joe Taylor
8507a42655
Quasi-graphical display of the sync ccf(f0,DT).
2020-12-17 17:02:28 -05:00
Joe Taylor
6b8abe32b1
One more protection against too-large FTol.
2020-12-16 15:51:46 -05:00
Joe Taylor
a47ec75f56
Reformat the test_q65 headings and output.
2020-12-15 13:17:31 -05:00
Joe Taylor
0ee61205aa
Disable diagnostic writing to 'fort.55' in CWD.
2020-12-15 11:37:48 -05:00
Joe Taylor
841bbac56e
Increase the Q65 list decodes to include reports -50 to +49 dB.
2020-12-15 11:03:06 -05:00
Joe Taylor
3160e63dc7
Several minor tweaks to Q65 decoding.
2020-12-15 09:32:24 -05:00
Joe Taylor
99377e4c24
Measure avg and rms of estimated SNR values, for comparison with generated SNRs.
2020-12-15 09:31:29 -05:00
Joe Taylor
cd95df4089
Protect against pathological combinations of RxFreq and FTol.
2020-12-09 13:45:05 -05:00
Joe Taylor
84591fa2ef
Protect against a bounds error with very large FTol.
2020-12-08 11:53:22 -05:00
Bill Somerville
2964bc6295
Merge branch 'develop' into feat-fst280
2020-12-06 22:27:07 +00:00
Joe Taylor
4b42937c35
Minor tweaks in q65_sync.
2020-12-06 08:12:58 -05:00
Joe Taylor
f948ba7c29
Allow fDop = 0.0 in test_q65.
2020-12-06 08:12:16 -05:00
Joe Taylor
a47f5e5103
Correct what appears to be an error in q65_intrinsics_fastfading: max hidx=63, not 64?
2020-12-06 08:09:28 -05:00
Joe Taylor
53f5e26580
First attempt ar reasonabkle values for nsmo and ibw range.
2020-12-05 13:46:44 -05:00
Joe Taylor
c50134691d
Adjustments to test_q65 for wider submodes.
2020-12-05 13:46:07 -05:00
Joe Taylor
742e2ef59f
Fix pctile for larger arrays.
2020-12-05 11:09:27 -05:00
Joe Taylor
9f8336de4e
Code cleanup.
2020-12-05 11:09:15 -05:00
Joe Taylor
077811ae6d
Update q65params.f90.
2020-12-05 11:03:16 -05:00
Joe Taylor
6416777278
Set ':' as the "mode character" for Q65.
2020-12-04 15:55:03 -05:00
Joe Taylor
8b9b71c894
Fix the "off by one" issue in measuring f0 for list decodes.
2020-12-04 15:37:54 -05:00
Joe Taylor
3dd34e13ba
dd "MyCall DxCall DxGrid" to list. Set PLOG_MIN=-240. No list decoding if DxCall is not defined.
2020-12-04 15:29:46 -05:00
