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5,353 Commits 5 Branches 98 Tags 208 MiB
8c371d7d66
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90 Commits

Author SHA1 Message Date
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
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
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
Steve Franke
0668c4fce0 Improve sync at large DT. 2019-05-08 11:34:16 -05:00
Steve Franke
0a12b34ec5 Avoid a potential out-of-bounds error. 2019-04-30 08:54:42 -05:00
Steve Franke
561af7f411 Avoid zeroing cwave when it is not going to be used. 2019-04-20 09:37:36 -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
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
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
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
Steven Franke
a605ff4050 For now, limit noise level estimation to [300,2500] Hz. 2019-03-27 20:55:15 -05:00
Joe Taylor
43c38de884 Minor tweaks for FT4 debugging and possible tuning. 2019-03-26 14:00:32 -04:00
Steve Franke
0fef707118 Widen candidate frequency offset window to f0=[10,4990] Hz. 2019-03-21 13:27:10 -05:00
Joe Taylor
e150d003d6 Fix an inforrect constant in ft4_rx() that skipped over first 0.208 s of Rx data. 2019-03-13 10:31:23 -04:00
Steve Franke
7a0823301a Remove some temporary code. 2019-03-09 10:03:01 -06:00
Steve Franke
8ddf3f8acc Change default to DT=0.14 s for simulated wav files. 2019-03-09 09:13:26 -06:00
Steve Franke
1b591e2c8c Make ft4d work with cqstr. 2019-03-04 17:26:24 -06:00
Steve Franke
d7012267c0 CQ message type strings are now passed from mainwindow.cpp to ft4_decode.f90, to enable AP decoding of special CQ messages. 2019-03-04 17:10:57 -06:00
Steve Franke
4769bf45d2 Make FT4 AP decoding work in RTTY RU and Field Day activities. 
Move Nuttal window to standalone subroutine nuttal_window.f90 and
use Nuttal window in ft4/getcandidates4.f90.
 2019-03-03 13:02:22 -06:00
Joe Taylor
5c7e1ba35d Complete the code cleanup in ft4sim. 2019-02-27 09:38:59 -05:00
Joe Taylor
1c617e2367 Minor code cleanup to ft4sim.f90 and ft4sim_mult.f90. 2019-02-27 09:34:40 -05:00
Joe Taylor
d5a1671210 FT4 decoding interval is now 288 ms. Saving of FT4 files is somewhat rationalized. 2019-02-21 10:08:18 -05:00
Joe Taylor
a98e1d7f37 Minor code cleanup. 2019-02-15 09:55:27 -05:00
Joe Taylor
3c77b720f8 Account for buffer start time in ft4d. 2019-02-15 09:06:41 -05:00
Joe Taylor
e5ea814bb9 Destroy FFTW plans when ft4d is finished. 2019-02-15 08:59:41 -05:00
Steve Franke
6c8a204d7e Make sure that message77 is initialized. 2019-02-14 18:54:14 -06:00
Steve Franke
473c7058ff Merge branch 'feat-ft2' of bitbucket.org:k1jt/wsjtx into feat-ft2 2019-02-14 17:37:48 -06:00
Steve Franke
6ad6d44ffa When doing block detection of symbols, fill in incomplete blocks using 
data from shorter block sizes.
 2019-02-14 17:34:46 -06:00
Joe Taylor
e4ba9f25fd Process one more 3456-sample chunk in ft4d. 2019-02-14 15:21:01 -05:00
Joe Taylor
55e0e32e59 Fix ft4d so that it reads and processed full 15-second files. 2019-02-14 15:10:41 -05:00