Steven Franke
a605ff4050
For now, limit noise level estimation to [300,2500] Hz.
2019-03-27 20:55:15 -05:00
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
Joe Taylor
9a6c82d09b
Tweaks to make valgrind somewhat happier.
2019-02-14 14:56:02 -05:00
Joe Taylor
073a22125a
Minor cleanup: debugging a problem with FT4 decoding.
2019-02-14 14:09:22 -05:00
Joe Taylor
c2cb55a68a
Reduce FT4 chunk size fro 500 to 288 ms; suppress duplicate decodes from close to chunk ends.
2019-02-13 14:42:57 -05:00
Steve Franke
186482811a
Use 91 bits for RR73 messages.
2019-02-09 16:08:39 -06:00
Steve Franke
b415faae20
Remove char(0) from mycall and hiscall.
2019-02-08 16:44:18 -06:00
Steve Franke
0f03d02e74
Merge branch 'feat-ft2' of bitbucket.org:k1jt/wsjtx into feat-ft2
2019-02-08 15:17:52 -06:00
Steve Franke
33498cc10f
Disable AP if ncontest=5 or 6 (Fox and Hound).
2019-02-08 15:17:46 -06:00
Steven Franke
7d70c5e9e1
Still trying to make data_dir work under all conditions. This makes it work with ft4d.
2019-02-08 11:24:22 -06:00
Steve Franke
e3830dcb27
Remove temporary indent file.
2019-02-07 18:52:51 -06:00
Steve Franke
cbfcb76193
AP decoding basically works. Make data_dir setting work on the Mac.
2019-02-07 18:48:38 -06:00
Steve Franke
ecbeda5297
Disable sync2 calculation for now.
2019-02-07 10:16:28 -06:00
Steve Franke
60cb4a33aa
Re-enable second sync pass.
2019-02-05 19:53:53 -06:00
Steve Franke
71cb6d9f50
Use 4 different Costas arrays to prevent false syncs as received frames move
...
through the analysis window.
Add a random 77-bit vector to each message so that tone transitions occur
even if the message contains a long string of 0 or 1 (like a CQ).
Add alternative sync calculation as an option (sync2), for testing.
Add basic framework for AP decoding.
2019-02-05 19:18:50 -06:00
Steve Franke
91e3dbdf20
New scheme for finding candidates. Speed up sync. Improved SNR calibration.
2019-02-02 16:29:17 -06:00
Steve Franke
40fd3f6551
Make writing to data_dir work on the Mac.
2019-02-02 11:04:11 -06:00
Joe Taylor
22209030e2
Move files all_ft4.txt and clockit.out to the data_dir directory.
2019-02-01 11:56:08 -05:00
Joe Taylor
98d665c678
Add subroutine clockit() and use it for profiling ft4_decode().
2019-02-01 10:47:47 -05:00
Joe Taylor
9c2700128c
Generation of FT4 Tx waveform from itone() moved to a separate subroutine.
2019-01-31 16:07:07 -05:00
Joe Taylor
b32799d2b8
Add xdt to lines printed by ft4sim_mult.
2019-01-31 14:06:05 -05:00
Joe Taylor
04f085bb24
Proper handling of multiple decodes from one call to ft4_decode.
2019-01-31 13:55:21 -05:00
Joe Taylor
a80b955fe7
Decode FT4 over the full frequency range displayed in waterfall.
2019-01-31 12:10:58 -05:00
Joe Taylor
0dd4577143
Merge branch 'feat-ft2' of bitbucket.org:k1jt/wsjtx into feat-ft2
2019-01-31 11:38:55 -05:00
Joe Taylor
7ae1210266
Fix several flaws in the waveforms generated by ft4sim_mult.
2019-01-31 11:37:54 -05:00
Steve Franke
fdb84c0e63
Fix an off-by-one error.
2019-01-30 19:19:38 -06:00
Joe Taylor
9f909b6b1b
Oops, I left garbage in the file.
2019-01-30 15:49:52 -05:00
Joe Taylor
1261434e84
Merge branch 'feat-ft2' of bitbucket.org:k1jt/wsjtx into feat-ft2
2019-01-30 15:37:38 -05:00
Joe Taylor
189f538dc0
Add ft4sim_mult, which is basically functional.
2019-01-30 15:33:47 -05:00
Steve Franke
66bb999126
Improve ft4_downsample filter. Improve getcandidates4.
2019-01-30 12:47:01 -06:00
Joe Taylor
3f7fb38e81
More code cleanup -- just comments and formatting.
2019-01-30 12:22:41 -05:00
Joe Taylor
2888c05eff
Code cleanup.
2019-01-30 11:20:29 -05:00
Steve Franke
e57df307dd
Fix a comment.
2019-01-29 15:42:30 -06:00
