Commit Graph

2002 Commits

Author SHA1 Message Date
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 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