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
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
97be1b46b9
Add more protection against the i0 crash that has occurred in getcandidates4.f90.
2019-06-04 14:53:45 -05:00
Steve Franke
fc4dcc6d88
Fix a bug that caused FT4 decoding to fail when widegraph Start freq was less than 200 Hz.
2019-05-27 16:34:53 -05:00
Steve Franke
3bc5e538d2
FT4: Implement polynomial baseline fit.
2019-05-25 10:58:04 -05:00
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
0a12b34ec5
Avoid a potential out-of-bounds error.
2019-04-30 08:54:42 -05:00
Steve Franke
e8d17a9898
FT4: Subtraction is basically working.
2019-04-18 14:16:39 -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
Steven Franke
a605ff4050
For now, limit noise level estimation to [300,2500] Hz.
2019-03-27 20:55:15 -05:00
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
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
Steve Franke
91e3dbdf20
New scheme for finding candidates. Speed up sync. Improved SNR calibration.
2019-02-02 16:29:17 -06:00
Joe Taylor
a80b955fe7
Decode FT4 over the full frequency range displayed in waterfall.
2019-01-31 12:10:58 -05:00
Steve Franke
66bb999126
Improve ft4_downsample filter. Improve getcandidates4.
2019-01-30 12:47:01 -06:00
Steve Franke
57cf69e6ad
First cut at identifying multiple candidates for decoding. Needs work.
2019-01-27 19:19:47 -06:00
Steve Franke
66e3f11fba
Add ft4 files in lib/ft4.
2019-01-25 16:01:34 -06:00
