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2130 Commits

Author SHA1 Message Date
Steven Franke
cf5aab0088 Allow up to 500 pre-candidates. 2020-03-09 14:03:53 -05:00
Steven Franke
d57b84be27 More changes to increase ft8 decoder yield. 2020-03-08 12:03:52 -05:00
Steven Franke
b130479249 Make jt9 work with the 41/47/50 scheme. 2020-03-06 19:03:09 -06:00
Steven Franke
83d87e9654 Fix an apparent typo in ft8_decode. 2020-03-06 19:02:41 -06:00
Steven Franke
fa071324e5 subtractft8: Delete unused variable, i1 2020-03-06 13:21:04 -06:00
Steven Franke
3467ee7924 Make Normal decode the same as Deep except no DT refinement at nearly=47. 2020-03-06 11:54:28 -06:00
Steven Franke
f2266c3c54 1. subtractft8: on the last call to sqf, don't need to do the long FFT. 
2. mainwindow.cpp: based on the time when <DecodeFinished> is received, calculate
mswait to try to place the killFile time at 0.75*m_TRperiod.
 2020-03-06 11:06:44 -06:00
Joe Taylor
f367b6d6b9 Temporary version: decode call at 47 buffers only does subtractions. 2020-03-06 10:38:24 -05:00
Joe Taylor
431ec50212 Progress toward decoding at 41/47/50 buffers. Not yet complete! 2020-03-05 15:37:31 -05:00
Joe Taylor
cd9efc54ea Correct the reported value "ndecoded" for FT8 mode. 2020-03-03 15:18:25 -05:00
Joe Taylor
02eb4fe90b Use a table lookup for exp(i*phi) in gen_ft8wave.f90. 2020-03-03 12:40:27 -05:00
Steven Franke
761ee1cd85 Merge branch 'develop' of bitbucket.org:k1jt/wsjtx into develop 2020-02-29 13:47:09 -06:00
Steven Franke
037805ca8f Improve dt estimation in ft8b so that dt refinement procedure in subtractft8.f90 can be done with 4 calls to sqf instead of 7. 2020-02-29 13:46:59 -06:00
Joe Taylor
6c1efac576 Once more, to get the <DecodeFinished> behavior right for realtime monitoring as well as data from disk. 2020-02-28 15:45:51 -05:00
Joe Taylor
8e7a56634b Set nearly=41; don't write <DecodeFinished> after the early decode pass. 2020-02-28 15:03:39 -05:00
Joe Taylor
f9322f2b43 Add calls to timer() around calls to subtractft8(). 2020-02-28 11:25:32 -05:00
Steven Franke
877878ea88 Merge branch 'develop' of bitbucket.org:k1jt/wsjtx into develop 2020-02-27 09:10:27 -06:00
Steven Franke
403904089e Re-arrange the fields in the ALL_WSPR.TXT file. 2020-02-27 09:10:17 -06:00
Joe Taylor
b9888a09ff Merge branch 'develop' of bitbucket.org:k1jt/wsjtx into develop 2020-02-26 13:16:12 -05:00
Joe Taylor
00210d1141 Minor code cleanup in subtractft9.f90. 2020-02-26 13:14:49 -05:00
Steven Franke
1dde5fdd6c Fix a minor bug in the unpk_ routine that was introduced in the last commit. 2020-02-25 15:28:57 -06:00
Steven Franke
38bac5e335 Merge branch 'develop' of bitbucket.org:k1jt/wsjtx into develop 2020-02-25 10:56:22 -06:00
Steven Franke
0ca6cbb575 wsprd: improve decoding and reduce the number of false decodes 
Hashtable entries now include the 4-digit grid obtained from the most
recent Fano decode of the callsign. The stored grid is used to validate
OSD decodes. OSD decodes of type 1 messages are accepted only if the
callsign is present in the hashtable and if the grid matches the grid
stored in the hashtable.
 2020-02-25 10:48:38 -06:00
Joe Taylor
65fda32a05 Previous commit was in error. This is the best-performing subtractft8.f90. 2020-02-25 09:04:18 -05:00
Joe Taylor
ff46c5a0c4 In subtractft8.f90: refine DT for early decodes before subtracting them from dd(). 2020-02-24 16:18:42 -05:00
Joe Taylor
1d159a18c7 More cleanup to satisfy fussy gcc 10 compiler. 2020-02-21 13:36:49 -05:00
Joe Taylor
adb7dfcac3 Satisfy fussy compilers like gcc 10: Type mismatch between actual argument at (1) and actual argument at (2) 2020-02-21 09:52:20 -05:00
Steven Franke
ac1d0f837d Comment out diagnostic write statement. 2020-02-17 10:56:47 -06:00
Steven Franke
20b942b802 FT8: Add an experimental 4'th bit metric. Make dupe removal unconditional. 2020-02-17 10:53:52 -06:00
K9AN
207fd05f9f Minor simplification - remove unnecessary nint() functions in get_spectrum_baseline.f90 2020-02-14 16:54:56 -06:00
Joe Taylor
ecb09ba852 Revert "Send "<DecodeFinished>" for FT8 only after the full-length decoding pass." 
This reverts commit 364db768db.
 2020-02-14 17:44:46 -05:00
Steven Franke
09b47b0e8e Change lower limit of analysis window from 200 Hz to 100 Hz. 2020-02-14 15:28:16 -06:00
Joe Taylor
364db768db Send "<DecodeFinished>" for FT8 only after the full-length decoding pass. 2020-02-14 11:49:07 -05:00
Joe Taylor
e25696f4e3 Enable early+normal decoding for FT8 data read from disk, within WSJT-X. 2020-02-14 11:16:54 -05:00
Joe Taylor
cf6ee661ab Fix two bugs (thanks Steve!); add early-decode logic to jt9[.exe] from command line. 2020-02-14 10:15:37 -05:00
Joe Taylor
2823cc3e85 Merge branch 'develop' of bitbucket.org:k1jt/wsjtx into develop 2020-02-13 15:34:09 -05:00
Steven Franke
e936a863a8 Fix some bugs related to osd decoding in msk144 and disable it for now. 2020-02-13 14:25:36 -06:00
Joe Taylor
4a4864d2ae FT8 early decoding is now working. 2020-02-13 15:05:37 -05:00
Steven Franke
08baa50a01 Experimental change to enable OSD decoding for MSK144 when ntol .le. 50 Hz 2020-02-13 08:48:51 -06:00
Steven Franke
cf07d478ac Some repairs and tweaks to development-related programs in fsk4hf directory. 2020-02-09 16:13:52 -06:00
Steven Franke
e9160f3c2f Make ldpcsim174_91 work again. Scale SNR2500 assuming coherent BPSK, same Eb as FT8. 2020-02-08 14:49:21 -06:00
Steven Franke
ff109a60ca Implement AP decoding for Hounds when Fox has a compound call with standard base call. 2020-02-03 10:48:51 -06:00
Steven Franke
96ad947a37 Implement decode quality metric for FT4. 2020-01-27 09:55:34 -06:00
Steven Franke
70b84478f0 Add WW_DIGI to the special activities section. Make necessary changes to 
the decoders. Also, an experimental change to the FT4 decoder to base
AP decoding passes on 4-symbol block detection instead of single symbol
detection. This provides about 1 dB improvement on the AWGN channel.
Sensitivity changes on other channels are TBD.
 2020-01-24 11:26:36 -06:00
Steven Franke
9aaffb9252 For FT4 - enable ndeep=4 within 80 Hz of nfqso. 2020-01-11 15:22:48 -06:00
Steven Franke
87b2bd74e2 More work on AP decoding for RU/SCC contests. 2020-01-09 11:44:58 -06:00
Steven Franke
a63e6e1209 - Force the use of standardized CQ modifier for FT4/FT8 contest operation. 
- Pass CQ modifier string to the ft4 decoder.
 2020-01-08 08:41:47 -06:00
Steven Franke
52075fca24 Merge branch 'develop' of bitbucket.org:k1jt/wsjtx into develop 2020-01-03 14:29:12 -06:00
Steven Franke
dda393dd81 Fix a typo. Thanks NQ6Z! 2020-01-03 14:28:37 -06:00
Joe Taylor
f069477dbb Bring test28.f90, ft4_testmsg.f90, ft8_testmsg.f90, ft8code.f90 up to date. 2020-01-03 13:34:56 -05:00
Joe Taylor
3cb75a49ec Reorder the FT4 test messages used in ft4code.f90. 2019-12-18 12:14:34 -05:00
Joe Taylor
26d1996eb8 Tweaks to ft4code. 2019-12-18 10:42:08 -05:00
Joe Taylor
3397bf49b4 Add utility program ft4code. 2019-12-18 10:02:00 -05:00
Joe Taylor
7d8cdd200c Merge branch 'develop' of bitbucket.org:k1jt/wsjtx into develop 2019-12-11 16:34:34 -05:00
Joe Taylor
7c0bef98bc Update and correct some comments. No actual code changes! 2019-12-11 16:33:33 -05:00
Steve Franke
0f592eb48f Disallow decoded messages with i3.ge.6 as these are not yet defined. 2019-12-11 11:18:37 -06:00
Steve Franke
85b5967d99 Fix ncontest initialization and heap storage conflict. 2019-12-11 10:16:48 -06:00
Joe Taylor
794736043c Merge branch 'develop' of bitbucket.org:k1jt/wsjtx into develop 2019-12-04 15:45:36 -05:00
Joe Taylor
61e8cb65d4 Update allsim.f90 and addit.f90 for the new FT8 and FT4 waveforms. 2019-12-04 15:44:38 -05:00
Steve Franke
a0d471cb0b Improve FT8 SNR estimates in two ways: 
(i) SNR no longer saturates at +20 dB
(ii) a large signal in the passband no longer causes the
SNR of weaker signals to be biased low.
 2019-11-27 15:58:52 -06:00
Steve Franke
091b7f03ed Delete un-needed file. 2019-11-27 15:57:40 -06:00
Steve Franke
d1530b0c19 Rename ft8sim files as follows: 
ft8sim_gfsk.f90 => ft8sim.f90
ft8sim.f90 => ft8sim_fsk.f90

This change reflects the fact that the GFSK waveform is now used in WSJT-X
for ft8 and ft4.
 2019-11-27 09:08:17 -06:00
Steve Franke
63e9c21a17 Simplify ft4sim by removing waveform generation code and replacing it with a call to gen_ft4wave.f90. 2019-10-24 10:36:50 -05:00
Bill Somerville
28f5cb0fb9 WSJT-X General Availability Release v2.1.0 wsjtx-2.1.0 
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Merge tag 'wsjtx-2.1.0' into develop

WSJT-X General Availability Release v2.1.0 wsjtx-2.1.0
 2019-07-13 23:47:18 +01:00
Steve Franke
f224790569 Tweak for consistency. 2019-07-12 10:41:09 -05:00
Bill Somerville
60332e799e
Merge branch 'develop' into feat-refactor 2019-07-04 12:34:20 +01:00
Steve Franke
fa44ed84c5 Remove an unused routine. Minor tweaks. 2019-07-03 10:55:13 -05:00
sirhc808
27d4471cde Merge branch 'ft9_refactor' into feat-refactor 
# Conflicts:
#	CMakeLists.txt
#	lib/ft4/getcandidates4.f90
#	lib/ft4/sync4d.f90
 2019-07-02 12:06:14 -05:00
sirhc808
84fd0ed7c7 clean up a few warnings 2019-07-01 21:10:43 -05:00
Bill Somerville
adcf202637
Repair a crash when decoding ISCAT 
Passing a  auto stack variable to  a future is  not a good idea  as it
will almost certainly  go out of scope before the  future has finished
executing.
 2019-06-30 12:17:17 +01:00
Steve Franke
e7889ba11b FT4: candidates within 20 Hz of nfqso are presented to the decoder first. 2019-06-24 11:09:55 -05:00
Steve Franke
c68679bd10 Tweak to reduce the number of bad candidates. 2019-06-19 09:07:08 -05:00
Steve Franke
efb01d014d Merge branch 'release-2.1.0' of bitbucket.org:k1jt/wsjtx into release-2.1.0 2019-06-18 11:36:03 -05:00
Steve Franke
6caf9955a4 Back off to 77 AP bits for RR73 decodes, for now. 2019-06-18 11:35:54 -05:00
Joe Taylor
396bf1a013 Correct a flaw in ft8sim when generating data with large abs(DT). 2019-06-17 11:26:46 -04:00
Steve Franke
c26d0b4f29 FT4: Imrovements to sync. 
Divide DT search range into 3 segments. Search central segment (near DT=0)
first and try to decode the largest peak. Then find the largest peak in each
of the surrounding segments and try to decode those only if the peak is larger
than the one found in the central segment.

Also re-indent ft4_decode.f90 and some other minor tweaks.
 2019-06-16 09:46:33 -05:00
Steve Franke
b4a318e5a9 Merge branch 'release-2.1.0' of bitbucket.org:k1jt/wsjtx into release-2.1.0 2019-06-14 16:29:10 -05:00
Steve Franke
7e9cc9cbc7 FT4: Improve sync performance on disturbed channels. Make jt9 command-line option -d work 2019-06-14 16:28:59 -05:00
Joe Taylor
7bd15246ae Adjustments to utility program rtty_spec.f90 2019-06-13 11:07:29 -04:00
Joe Taylor
7e1eaf3f31 Merge branch 'release-2.1.0' of bitbucket.org:k1jt/wsjtx into release-2.1.0 2019-06-12 11:34:41 -04:00
Joe Taylor
9de51ebfa3 Rename and tweak rtty_spec.f90. 2019-06-12 11:31:35 -04:00
Steve Franke
fc07bd9287 FT4: minor tweak to avoid passing an unnecessary argument and reject bad candidates sooner. 2019-06-12 08:16:10 -05:00
Steve Franke
89dc109968 Re-enable printing of ?a# decode quality and ap-type annotations, for now. 2019-06-11 09:17:13 -05:00
Steve Franke
8b195a91e9 Merge branch 'release-2.1.0' of bitbucket.org:k1jt/wsjtx into release-2.1.0 2019-06-08 08:36:40 -05:00
Steve Franke
3c23a05d1f Move demod and bit metric calculation to a subroutine. This will make 
it easier to experiment with alternative schemes for demod.
 2019-06-08 08:34:46 -05:00
Bill Somerville
77094c88bf
Merge branch 'release-2.1.0' into f2008 2019-06-07 17:17:01 +01:00
Joe Taylor
d4a7a292c0 Implement message type i3=5 (for WWROF contest exchange) in packjt77. 2019-06-06 10:29:58 -04:00
Bill Somerville
f346d37fd6
Modernize Fortran interfaces that are called from C/C++ 
Making Fortran  interfaces called from other  languages fully portable
avoids issues with newer Fortran compilers.
 2019-06-06 15:00:47 +01:00
Steve Franke
f9e9bc01a1 Update some comments, delete obsolete files. 2019-06-05 10:17:59 -05:00
Steve Franke
054d098d8b Merge branch 'release-2.1.0' of bitbucket.org:k1jt/wsjtx into release-2.1.0 2019-06-04 14:53:52 -05:00
Steve Franke
97be1b46b9 Add more protection against the i0 crash that has occurred in getcandidates4.f90. 2019-06-04 14:53:45 -05:00
Joe Taylor
6a2ac44916 Use LU=26 in readwav.f90. 2019-06-04 10:39:43 -04:00
Joe Taylor
d3121bfedd Correct the open() statement in readwav.f90. 2019-06-04 10:19:35 -04:00
Steve Franke
fc4dcc6d88 Fix a bug that caused FT4 decoding to fail when widegraph Start freq was less than 200 Hz. 2019-05-27 16:34:53 -05:00
Steve Franke
f00bcebb9c Enable lapcqonly for FT4. This disables AP for all but CQ messages if 5 minutes or more have elapsed since the last Tx. 2019-05-26 13:25:36 -05:00
Steve Franke
11065c349c Call OSD if Deep decoding is selected. 2019-05-26 12:08:07 -05:00
Steve Franke
8c371d7d66 Remove an obsolete routine. 2019-05-26 09:55:39 -05:00
Steve Franke
7e4de91626 Fix a comment. 2019-05-26 09:52:17 -05:00
Steve Franke
3bc5e538d2 FT4: Implement polynomial baseline fit. 2019-05-25 10:58:04 -05:00
Steve Franke
6dbaa28a01 Fix DT search range so that it includes DT= +/-1.0. 2019-05-24 20:11:20 -05:00
Steve Franke
883c914d29 Make DT=0 mean that the first full symbol starts at t=0.5s. Formerly DT=0 corresponded to the beginning of the ramp-up symbol. Fix a bug that caused signals with large DT to wrap around instead of truncating them. 2019-05-24 20:09:00 -05:00
Joe Taylor
2ab4b59d88 Fix ft4sim_mult for 7.5 s T/R sequences. 2019-05-23 14:06:00 -04:00
Steve Franke
932e100a2c Update jt9.f90 to account for changes to FT4. 2019-05-23 09:55:50 -05:00
Steve Franke
a9623703b3 FT4: Change Fortran code to NSPS=576 and make necessary accompanying 
changes on the C++ side. Basically works except that Tx audio has
incorrect DT and audio is truncated at the end. Also, command line
decoding using JT9 is not as sensitive as decoding from within WSJT-X.
 2019-05-22 17:02:15 -05:00
Steve Franke
80307b64ad Add a temporary research tool. 2019-05-22 17:01:06 -05:00
Joe Taylor
10aaec90e3 FT4 decodes using jt9 from command line now use ndepth=3. 2019-05-21 12:09:17 -04:00
Joe Taylor
2044b736da Fix a bug in calculation of S/N in JT4 mode. 2019-05-20 12:46:36 -04:00
Steven Franke
ab1454a24c Try to avoid a crash in freqcal.f90 when data is all zeros. 2019-05-11 09:36:15 -05:00
Steve Franke
0668c4fce0 Improve sync at large DT. 2019-05-08 11:34:16 -05:00
Steve Franke
0795651f0f FT4: Initialize mycall13 and dxcall13 for unpack77. 2019-05-04 08:05:28 -05:00
Bill Somerville
2e5152ad08 Merge branch 'release-2.1.0' of bitbucket.org:k1jt/wsjtx into release-2.1.0 2019-05-03 23:34:39 +01:00
Steve Franke
3611be8ba0 Try to avoid an array bounds error that has been reported by a user. Cause unknown. 2019-05-03 10:51:45 -05:00
Steve Franke
ab282fae78 Add bLowSidelobes argument to the call to symspec. It is initialized to FALSE. 2019-05-03 09:01:18 -05:00
Bill Somerville
45a1841eec Fix another grid variable length to suit new azdist API 2019-05-02 22:01:31 +01:00
Steve Franke
156f62d2fe 1. Fix array bounds mismatch in subroutine call that was the likely cause of Fortran crashes, and 2. open up DT search range to +/- 0.77s 2019-05-02 11:39:18 -05:00
Steve Franke
8b483620be Merge branch 'release-2.1.0' of bitbucket.org:k1jt/wsjtx into release-2.1.0 2019-04-30 20:12:42 -05:00
Steve Franke
b5f0cc7ea7 Add a third decoding pass. 2019-04-30 20:02:42 -05:00
Bill Somerville
3916316a1c Merge branch 'release-2.1.0' of bitbucket.org:k1jt/wsjtx into release-2.1.0 2019-04-30 15:43:01 +01:00
Bill Somerville
b29a6d14ea Workaround for a crash on macOS when compiling with gfortran 8.3 2019-04-30 15:13:26 +01:00
Steve Franke
0a12b34ec5 Avoid a potential out-of-bounds error. 2019-04-30 08:54:42 -05:00
Steve Franke
50eb2914af Change FT4 mode symbol to plus (+). 2019-04-26 16:44:09 -05:00
Steve Franke
561af7f411 Avoid zeroing cwave when it is not going to be used. 2019-04-20 09:37:36 -05:00
Bill Somerville
cf2219173a Squash a SEGV 2019-04-20 01:14:23 +01:00
Steve Franke
5814887770 FT4: Wire up Fast/Normal/Deep. 2019-04-19 14:38:54 -05:00
Steve Franke
2746338757 Measure time spent in subtract4.f90. 2019-04-18 17:19:56 -05:00
Steve Franke
e8d17a9898 FT4: Subtraction is basically working. 2019-04-18 14:16:39 -05:00
Steve Franke
be72461142 FT4: Some groundwork for subtraction. 2019-04-18 14:15:24 -05:00
Joe Taylor
655e0029fd Define the expected file length for FT4 data. 2019-04-17 14:03:27 -04:00
Steve Franke
f296e37630 Fix a bug that didn't show up when I compiled on the Mac. 2019-04-12 18:54:33 -05:00
Steve Franke
cd8ea16f40 FT8: Use GFSK waveform with BT=4.0 as reference for subtraction, for now. May want to change to BT=2.0 before v2.1 release? 2019-04-12 17:11:26 -05:00
Joe Taylor
a545b83bc3 Command-line argument for decoding FT4 files. 2019-04-03 15:40:33 -04:00
Joe Taylor
b3f62276e7 Fix the DT values generated in ft4sim_mult. 2019-04-03 12:45:38 -04:00
Joe Taylor
9fe179d396 Fix ft8sim_mult to generate synchronous FT4 signals. 2019-04-03 11:48:57 -04:00
Joe Taylor
50d4120c0c Add timer calls to FT4 decoder. 2019-04-03 10:26:47 -04:00
Joe Taylor
6ea9f4990d Several tweaks to FT4 simulation and decoding procedures. Now -0.5 < DT < 0.5 2019-04-03 10:13:50 -04:00
Joe Taylor
013c06b6ca Fix a probmel with decoding FT4 from .wav files. 2019-04-03 09:25:32 -04:00
Joe Taylor
d1c5bbecfe Add the new ft4_decode file. 2019-04-02 12:21:03 -04:00
Joe Taylor
e0d4c94cc1 Some very basic functionality for time-synchronized FT4. 2019-04-01 14:23:10 -04:00
Steve Franke
c7ec9b1927 Fix indenting. No functional changes. 2019-03-30 16:40:24 -05:00
Steve Franke
68f82c95de FT4: Only do the big FFT once for each candidate. Duh. 2019-03-30 15:55:05 -05:00
Steve Franke
73efc09392 Speed up sync. 2019-03-28 14:34:03 -05:00
Steve Franke
5e1637a5db Fix a bug and remove a redundant sanity check. 2019-03-28 14:01:30 -05:00
Joe Taylor
67b9f327a5 Merge branch 'release-2.1.0' of bitbucket.org:k1jt/wsjtx into release-2.1.0 2019-03-28 13:21:02 -04:00
Joe Taylor
54cd97f918 Protect against bad inferred candidate frequencies f0 in FT4 mode. 2019-03-28 13:07:37 -04:00
Steve Franke
fe8aa87401 Add some sanity checks to getcandidates4.f90 2019-03-28 11:13:26 -05:00
Steve Franke
3490c0d1e3 Merge branch 'release-2.1.0' of bitbucket.org:k1jt/wsjtx into release-2.1.0 2019-03-28 11:02:20 -05:00
Steve Franke
23c54540e7 Increase maximum wav file length to 20s. 2019-03-28 10:59:20 -05:00
Joe Taylor
6f00ec79a2 Merge branch 'release-2.1.0' of bitbucket.org:k1jt/wsjtx into release-2.1.0 2019-03-28 09:47:50 -04:00
Joe Taylor
cfb36395e0 Add some better usage examples for ft4sim. 2019-03-28 09:22:29 -04:00
Joe Taylor
580fce8320 Allow oddball file names for input to ft4d. 2019-03-28 09:21:01 -04:00