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2394 Commits

Author SHA1 Message Date
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