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6,843 Commits 5 Branches 98 Tags 208 MiB
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2526 Commits

Author SHA1 Message Date
Joe Taylor
6ebc700288 Mostly(?) changed QRA66 to QRA65 on the Fortran side. 2020-09-25 12:21:57 -04:00
Joe Taylor
2057600f43 First functioning QRA65 encode and decode. 2020-09-25 10:55:21 -04:00
Joe Taylor
0ab3e5116f Fix several flaws in the loop-over-NB logic in the FST4 decoder. 2020-09-19 10:08:42 -04:00
Joe Taylor
2af01ebaa1 Fix a flaw in the loop-over NB logic. There are more flaws! 2020-09-18 15:52:33 -04:00
Joe Taylor
f0ed93cdd0 In the NB-loop, don't cycle around a decode attempt for the npct=0 pass. 2020-09-18 11:45:28 -04:00
Joe Taylor
52bdd57e57 Implement NB=-1%, NB=-2%. Fix a startup problem with WideGraps's fMax value. 2020-09-18 11:30:23 -04:00
Joe Taylor
375a869a51 Revert "Revert "Very basic code (including some diagnostics) for "try all NB settings". Will remove it again."" 
This reverts commit 033cc65d08.
 2020-09-18 09:01:51 -04:00
Joe Taylor
033cc65d08 Revert "Very basic code (including some diagnostics) for "try all NB settings". Will remove it again." 
This reverts commit bcf7f36b9c.
 2020-09-17 19:30:07 -04:00
Joe Taylor
bcf7f36b9c Very basic code (including some diagnostics) for "try all NB settings". Will remove it again. 2020-09-17 19:28:55 -04:00
Steven Franke
7d58df4cc1 In FST4 mode with Single Decode not checked, move candidates within 20 Hz of nfqso to the top of the list. 2020-09-17 14:22:38 -05:00
Joe Taylor
21dc6a5c59 Connect the FLow and FHigh limits for FST4 decoding. 2020-09-16 17:23:59 -04:00
Steven Franke
221ede2903 Remove some unused variables. 2020-09-14 13:07:07 -05:00
Steven Franke
b49a90f530 Remove a redundant array. 2020-09-14 13:03:33 -05:00
Steven Franke
1b59d9dc8c Eliminate redundancies from the calculation of sequence correlations. 2020-09-14 12:42:32 -05:00
Steven Franke
ca0804450b Remove some redundant code. 2020-09-14 09:07:45 -05:00
Steven Franke
3d8c8e3dd7 Merge branch 'develop' of bitbucket.org:k1jt/wsjtx into develop 2020-09-14 09:00:35 -05:00
Steven Franke
98d52e35ac Speed up FST4 decoding. 2020-09-14 09:00:30 -05:00
Joe Taylor
a1baaebee9 Decoder should reject data with rms < 3.0 over first 15 seconds. 2020-09-12 13:46:09 -04:00
Joe Taylor
263675cac4 Fix an oddball result with i*2 numbers: abs(-32768)=-32768. 2020-09-12 09:00:39 -04:00
Joe Taylor
8e69f84bdd Remove some obsolete, commented-out code. No real cghanges! 2020-09-11 18:39:24 -04:00
Bill Somerville
5fdcd8c15a
Merge branch 'develop' into feat-fst280 2020-09-11 20:06:20 +01:00
Steven Franke
71fdcd1119 Silence a compiler warning. 2020-09-10 16:11:07 -05:00
Steven Franke
2dcde590df Use widegraph limits for noise baseline fit. Limit signal search to within the widegraph limits. 2020-09-10 14:58:10 -05:00
Joe Taylor
47fcddcb50 Send nfa, nfb to fst4_decode(). 2020-09-10 14:59:52 -04:00
Joe Taylor
01a1688b32 FST4 and FST4W decoder: get freq range from nfqso and ntol; remove BCD submodes, i.e. hmod=2, 4, 8. 2020-09-05 13:14:40 -04:00
Joe Taylor
f24d15b16e Eliminate the FST4/FST4W submodes with hmod > 1. 2020-09-04 15:15:30 -04:00
K9AN
f066936043
Remove an unused variable from fst4_decode 2020-08-29 19:55:23 +01:00
Steven Franke
5ca81a6507
Use 3rd order polynomial fit to estimate the noise baseline. The 
polynomial fit is done over 400 Hz bandwidth for T/R periods longer
than 15s, and over approx. 600 Hz (10 times the signal bandwidth) for
T/R period of 15s.
 2020-08-29 19:55:23 +01:00
Steven Franke
d82b9f5b0e
Speed up decoder by eliminating some complex multiples in sequence detection loop. Add timer calls for doppler spread calculation and sequence detection loop. 2020-08-29 19:55:22 +01:00
Steven Franke
ecaca6af9f
Fix argument list in call to fet_fst4_bitmetrics.f90 2020-08-29 19:55:22 +01:00
Steven Franke
b9328b96c9
Tweaks to update the diagnostics that are written to fort.21. 2020-08-29 19:55:22 +01:00
Steven Franke
e02850ae5a
Streamline fst4_decode. Add timer for downsampling. 2020-08-29 19:55:22 +01:00
Steven Franke
782c779392
Reconfigure to optimize decoder for MF/LF (high coherence) channels. 2020-08-29 19:55:21 +01:00
Steven Franke
7cb5511ed0
Simplify some code in fst4_decode.f90 - no functional change. 2020-08-29 19:55:21 +01:00
Steven Franke
bf06193c10
Add timer call for bit metric calculation. Improve some comments. Make fort.21 ntype parameter more informative. 2020-08-29 19:54:38 +01:00
Steven Franke
6838a6b484
Remove some unneeded code. 2020-08-29 19:50:32 +01:00
Steven Franke
8b7db6556c
Changes to the llrs that are used as the basis for AP decoding. 2020-08-29 19:50:17 +01:00
Steven Franke
b191e0c5ef
Fix SNR calculation for B,C,D submodes. 2020-08-29 19:49:59 +01:00
Steven Franke
9d2bde7180
Fix SNR calculation for B,C,D submodes. 2020-08-29 19:49:46 +01:00
Steven Franke
cdbe425e56
Use squared metric for fst4 - works better on fading channel. 2020-08-29 19:49:23 +01:00
Steven Franke
37e05f6074
Set unpk77_success=.false. for messages with i3=0 and n3>6. 2020-08-29 19:48:54 +01:00
K9AN
8159478d51 Remove an unused variable from fst4_decode 2020-08-28 12:25:17 -05:00
Steven Franke
e232c32178 Use 3rd order polynomial fit to estimate the noise baseline. The 
polynomial fit is done over 400 Hz bandwidth for T/R periods longer
than 15s, and over approx. 600 Hz (10 times the signal bandwidth) for
T/R period of 15s.
 2020-08-28 09:22:22 -05:00
Steven Franke
ad0540a027 Speed up decoder by eliminating some complex multiples in sequence detection loop. Add timer calls for doppler spread calculation and sequence detection loop. 2020-08-24 10:17:45 -05:00
Steven Franke
e3171d2142 Fix argument list in call to fet_fst4_bitmetrics.f90 2020-08-22 09:42:34 -05:00
Steven Franke
091d6d0b1a Tweaks to update the diagnostics that are written to fort.21. 2020-08-21 09:18:59 -05:00
Steven Franke
0e0349e87a Streamline fst4_decode. Add timer for downsampling. 2020-08-20 09:48:32 -05:00
Steven Franke
e28215fce5 Reconfigure to optimize decoder for MF/LF (high coherence) channels. 2020-08-19 14:10:28 -05:00
Steven Franke
07486ee0c7 Simplify some code in fst4_decode.f90 - no functional change. 2020-08-19 09:20:48 -05:00
Steven Franke
2c0462f9aa Merge branch 'feat-fst280' of bitbucket.org:k1jt/wsjtx into feat-fst280 2020-08-17 14:12:13 -05:00
Steven Franke
683cd08103 Add timer call for bit metric calculation. Improve some comments. Make fort.21 ntype parameter more informative. 2020-08-17 14:12:08 -05:00
Bill Somerville
4a2a181528
Merge branch 'develop' into feat-fst280 2020-08-17 18:33:00 +01:00
Joe Taylor
42626009b5 TEMPORARY: Diagnostic routine for the "Save All" missing files problem. 2020-08-09 14:21:25 -04:00
Joe Taylor
84e53960cd QRA66 now works up for submodes A-D up to 300 s periods. Submode E presently NG. 2020-08-09 11:04:49 -04:00
Joe Taylor
de0476bf3c More changes to allow longer sequences in QRA66 mode. 2020-08-08 16:53:28 -04:00
Joe Taylor
e4fad77fa5 QRA66 now works with qra66sim and jt9 and TR periods 15 30 60 120 300 s. 2020-08-08 13:57:24 -04:00
Joe Taylor
bf38f4416c Modifications to give QRA64 use of longer TR periods and tone-spacing submodes. Noy yet finished, or tested! 2020-08-08 09:14:12 -04:00
Joe Taylor
2de2874672 Allow for larger irc created by message averaging. Commit test_qra66.f90 2020-08-06 14:23:39 -04:00
Joe Taylor
254e2f61fa Remove diagnostic write to fort.71. 2020-08-06 07:07:16 -04:00
Joe Taylor
30e34bf1c4 Implement message averaging (very basic) for QRA66. 2020-08-05 16:34:49 -04:00
Joe Taylor
6c8c9183aa SNR for QRA66 non-decodes now set to -25. 2020-08-05 11:16:56 -04:00
Joe Taylor
7256d70016 QRA66: change NSPS from 1920 to 1800. TxT=85*1800/12000=12.75 s. 2020-08-05 11:06:18 -04:00
Joe Taylor
f1c8f04136 Report failed QRA66 decode as SNR = -22 dB. 2020-08-04 14:18:23 -04:00
Joe Taylor
e719efd835 Merge branch 'feat-fst280' of bitbucket.org:k1jt/wsjtx into feat-fst280 2020-08-04 13:44:01 -04:00
Joe Taylor
335cc41faa More code cleanup. Rename sync66a to sync66. 2020-08-04 13:13:49 -04:00
Joe Taylor
2e893e8994 Add Tx freq as command-line argument for qra66sim. 2020-08-04 13:12:51 -04:00
Steven Franke
cc0aa373a9 Merge branch 'feat-fst280' of bitbucket.org:k1jt/wsjtx into feat-fst280 2020-08-04 11:56:38 -05:00
Steven Franke
9b4b3a6623 Remove some unneeded code. 2020-08-04 11:56:32 -05:00
Joe Taylor
88102af49d Fic the transfer of ntol from GUI to qra66_decode(). 2020-08-04 12:53:37 -04:00
Joe Taylor
902bb4d5e0 Add timer calls in qra66_decode. 2020-08-04 11:58:09 -04:00
Joe Taylor
4b92c20ee9 Merge branch 'feat-fst280' of bitbucket.org:k1jt/wsjtx into feat-fst280 2020-08-04 11:52:51 -04:00
Joe Taylor
668631180d Code cleanup. 2020-08-04 11:52:29 -04:00
Steven Franke
4225241720 Changes to the llrs that are used as the basis for AP decoding. 2020-08-04 10:25:09 -05:00
Steven Franke
45a1a116c9 Merge branch 'feat-fst280' of bitbucket.org:k1jt/wsjtx into feat-fst280 2020-08-04 10:17:16 -05:00
Steven Franke
55d83f068b Fix SNR calculation for B,C,D submodes. 2020-08-04 10:15:08 -05:00
Joe Taylor
56067dc52c Merge branch 'feat-fst280' of bitbucket.org:k1jt/wsjtx into feat-fst280 2020-08-04 10:50:00 -04:00
Joe Taylor
7b2e9c4e5d Many improvements to QRA66 decoder. 2020-08-04 10:49:14 -04:00
Steven Franke
802f078386 Fix SNR calculation for B,C,D submodes. 2020-08-04 09:15:44 -05:00
Joe Taylor
c91baddb2c New sync66a subroutine for QRA66. 2020-08-03 16:30:29 -04:00
Bill Somerville
caba1fbe72
Validate grids in 77-bit and 50-bit message unpacking 2020-08-03 02:11:46 +01:00
Joe Taylor
2846a6422a Temporary: limit Rx search range to 15-- +/- 50 Hz. 2020-08-02 13:33:15 -04:00
Joe Taylor
dc5d85f850 Remove a diagnostic print. Correct the maxAP value. 2020-08-02 11:40:03 -04:00
Joe Taylor
dd471c6b5e Improvements to QRA66 decoder. Still needs work. 2020-08-02 11:15:10 -04:00
Joe Taylor
45dac5bd18 Change random number generation in qra66sim so results are exactly repeateble. 2020-08-02 09:42:22 -04:00
Bill Somerville
87dec9d433
Remove a remnant of "Also FST4W" mode 2020-08-02 00:42:09 +01:00
Joe Taylor
fb3c23492f Adjustments to the QRA66 decoder. Still need to implement looping over b90 values. 2020-08-01 15:12:37 -04:00
Joe Taylor
e66843c0c0 Merge branch 'feat-fst280' of bitbucket.org:k1jt/wsjtx into feat-fst280 2020-08-01 12:14:44 -04:00
Joe Taylor
3867c452e6 Changes to GUI to accommodate QRA66. It's basically functional, I think. 2020-08-01 12:13:49 -04:00
Steven Franke
e751a4404f Use squared metric for fst4 - works better on fading channel. 2020-08-01 10:58:21 -05:00
Joe Taylor
a0b5be009a Merge branch 'feat-fst280' of bitbucket.org:k1jt/wsjtx into feat-fst280 2020-08-01 10:14:26 -04:00
Joe Taylor
f45c617422 First working QRA66 decoder. 2020-08-01 09:24:59 -04:00
Joe Taylor
c4ef1e3e25 Starting on a decoder for QRA66. Now have found xdt and f0 from the sync vector. 2020-07-31 16:38:21 -04:00
Steven Franke
4b0ae524bf Set unpk77_success=.false. for messages with i3=0 and n3>6. 2020-07-31 14:15:49 -05:00
Joe Taylor
77b7e71424 Enable mode QRA66B in qra66sim. 2020-07-31 11:16:03 -04:00
Joe Taylor
09686b9958 Add a simulator for experimental mode QRA66. 2020-07-31 10:59:05 -04:00
Joe Taylor
9146ce9667 Correct a flaw in qra64sim. 2020-07-31 10:58:30 -04:00
Joe Taylor
ee24f03d09 Modify genqra64.f90 so it can also be used for a "QRA66" mode. 2020-07-31 09:27:36 -04:00
Joe Taylor
902c0b7a59 Protect against bounds error in dopspread.f90. Remove the temporary ssavg code. 2020-07-29 09:48:19 -04:00
Joe Taylor
884854223c Add computation of an average spectrum of unmodulated FST4 signals after decoding. 2020-07-27 14:02:33 -04:00
Joe Taylor
4455861773 Merge branch 'feat-fst280' of bitbucket.org:k1jt/wsjtx into feat-fst280 2020-07-27 08:27:46 -04:00