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WSJT-X
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24 Commits

Author SHA1 Message Date
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
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