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WSJT-X
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1987 Commits

Author SHA1 Message Date
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