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WSJT-X
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6,013 Commits 5 Branches 98 Tags 208 MiB
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216 Commits

Author SHA1 Message Date
Joe Taylor db6d3c9e84 Eliminate a few more false decodes. 2020-05-18 10:32:17 -04:00
Joe Taylor 24bd0f807f Silence some compiler warning messages. 2020-05-17 14:09:25 -04:00
Joe Taylor e770e967e6 Filter out very weak FT8 false decodes. 2020-05-17 13:25:52 -04:00
Bill Somerville cf6893e56b Updates for compliance with gcc v10 and squash some warnings 2020-05-07 14:57:05 +01:00
Steven Franke 80bdad45dc More housekeeping. 2020-05-05 14:26:30 -05:00
Steven Franke c0da6ce265 Housekeeping. 2020-05-05 14:05:46 -05:00
Steven Franke 3405687e89 Clean up in preparation for RC release. 2020-05-05 13:45:02 -05:00
Steven Franke 9b6dd092c5 Streamline decoding to use a single call to decode174_91. 2020-05-05 11:59:43 -05:00
K9AN 6363f3fd43 Change maxsuper to 1. 2020-05-04 15:28:16 -05:00
Steven Franke ceb8ae610a Oops - decoding depths were set for uncoupled decoding. 2020-05-04 13:58:17 -05:00
Steven Franke 1bcf2ff335 Cleanup. 2020-05-04 13:42:42 -05:00
Steven Franke 093c403063 Implement coupled BP->OSD decoding for FT8/FT4. 2020-05-04 13:13:49 -05:00
Joe Taylor d3f8793578 Better correction for very weak false decodes in ft8b.f90. Revert an incorrect change in jt9.f90. 2020-05-04 10:55:53 -04:00
Steven Franke 1d2a0f39ac Tweak SNR calibration for better tracking at low SNR. 2020-05-03 08:51:55 -05:00
Steven Franke db773cf7dd Make a change to decrease the number of false decodes. 2020-05-02 10:45:04 -05:00
Steven Franke c43e58792c Work-in-progress hybrid bp/osd decoder for FT8. 2020-04-26 14:45:39 -05:00
Joe Taylor 00e8027c29 Implementing new Type 5 messages for EU VHF contests. 2020-04-21 13:48:47 -04:00
Joe Taylor d5e92202d0 Silence compiler warnings; reformmat some source code. 2020-03-19 13:13:33 -04:00
Joe Taylor 7564301209 Silence compiler warnings. 2020-03-19 11:43:22 -04:00
Joe Taylor a6089bc196 Silence compiler warnings. 2020-03-19 11:27:57 -04:00
Joe Taylor 4fa3ee3437 Silence compiler warnings. 2020-03-19 10:43:45 -04:00
Steven Franke 8f7221825f First cut at setting up Fast/Normal/Deep parameters. 2020-03-17 08:51:37 -05:00
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 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 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 f9322f2b43 Add calls to timer() around calls to subtractft8(). 2020-02-28 11:25:32 -05:00
Joe Taylor 00210d1141 Minor code cleanup in subtractft9.f90. 2020-02-26 13:14:49 -05:00
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 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
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 4a4864d2ae FT8 early decoding is now working. 2020-02-13 15:05:37 -05:00
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 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
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 3397bf49b4 Add utility program ft4code. 2019-12-18 10:02:00 -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 f224790569 Tweak for consistency. 2019-07-12 10:41:09 -05:00