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WSJT-X
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1820 Commits

Author SHA1 Message Date
Joe Taylor 7ae1210266 Fix several flaws in the waveforms generated by ft4sim_mult. 2019-01-31 11:37:54 -05:00
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
Joe Taylor 7e3b153d8b Correct the estimate of SNR for FT4 signals. 2019-01-29 13:56:04 -05:00
Joe Taylor 0a6d67c1d6 Make the simulated data files slightly longer so that WSJT-X can decode them. 2019-01-29 13:55:04 -05:00
Joe Taylor e98231d4c1 Correct the call to genft4(); fix the displayed time for data from disk. 2019-01-29 10:39:34 -05:00
Steve Franke d3b1f7e560 Prevent some out-of-bounds problems. 2019-01-27 19:28:41 -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 613bfaf3ee Change ft4 to use (174,91) code and 512 Sa/symbol. 2019-01-26 23:03:54 -06:00
Steve Franke d9f4a27a3e Create ft4_decode.f90. Change stand-alone decoder ft4d.f90 to use ft4_decode.f90. 2019-01-26 11:42:07 -06:00
Steve Franke c52f755afc Make Watterson simulator causal. 2019-01-25 16:26:13 -06:00
Steve Franke 9fa08d3838 Un-hardwire sync. 2019-01-25 16:06:45 -06:00
Steve Franke 8baf48701e Merge branch 'feat-ft2' of bitbucket.org:k1jt/wsjtx into feat-ft2 2019-01-25 16:01:42 -06:00
Steve Franke 66e3f11fba Add ft4 files in lib/ft4. 2019-01-25 16:01:34 -06:00
Joe Taylor 5efa28164c Remove a redundant file reference in CMakeLists.txt. Fix call to unpck77 in genft2.f90 2019-01-25 14:46:17 -05:00
Steve Franke 3bdbf19d1d Make ft4sim and ft4d work. 2019-01-22 11:01:28 -06:00
Steve Franke b4639b77d0 Fix CMakeLists.txt so that ft2_decode still builds. Fix a bug in ft4d - sync now seems to work. 2019-01-21 19:52:13 -06:00
Steve Franke 7b7857cd77 Merge branch 'feat-ft2' of bitbucket.org:k1jt/wsjtx into feat-ft2 2019-01-21 19:33:51 -06:00
Steve Franke f2dc394c84 Add ft4 files; ft4sim works, ft4d is work in progress. 2019-01-21 19:31:54 -06:00
Joe Taylor 486440beb4 Merge branch 'feat-ft2' of bitbucket.org:k1jt/wsjtx into feat-ft2 2019-01-18 16:23:19 -05:00
Joe Taylor 568fc0810e Tx now works, more or less, in FT2 mode. Needs testing! 2019-01-18 16:22:25 -05:00
Joe Taylor 2033a2b33d Add a missing file; tweak the FT2 decoder. 2019-01-18 12:33:45 -05:00
Joe Taylor 5f03d97a9e Implement basic Rx capability for FT2 in WSJT-X. 2019-01-18 11:51:15 -05:00
Joe Taylor c81af0bbe5 Updates to code for stand-alone ft2[.exe]. 2019-01-18 08:57:46 -05:00
Joe Taylor c6bc3c64bb Add parameters for FT8 and Ft2 to wavhdr.f90. 2019-01-18 07:45:59 -05:00
Steve Franke f447fe49e1 Fix some indexing problems. Create subroutine ft2_gfsk_iwave.f90 for use with ft2.exe. Needs testing. 2019-01-17 15:25:06 -06:00
Steve Franke 7701516b43 ft2sim now creates a GFSK waveform with BT=1.0. It also adds raised cosine ramp up and down at the beginning and end of the transmission. 2019-01-17 14:01:40 -06:00
Joe Taylor 9b483d5ee1 Fix ft2 build to accommodate having merged changes from the hotfix branch. 2019-01-16 16:25:31 -05:00
Bill Somerville 074914d607 Fix merge issues 2019-01-16 20:55:01 +00:00
Bill Somerville aee9c09851 Merge branch 'develop' into feat-ft2 2019-01-16 20:44:44 +00:00
Joe Taylor 0a648a109f Correct broken S/N for tx_once transmissions. 2019-01-16 15:00:12 -05:00
Joe Taylor 3023f7e5c6 Minor tweaks in formatting, etc. 2019-01-16 13:58:56 -05:00
Joe Taylor dc5d9f1617 Add a comment. 2019-01-16 13:20:13 -05:00
Joe Taylor 12463451e2 Allow upper or lower case for "A" and "L" commands. 2019-01-16 13:16:10 -05:00
Joe Taylor f194621695 Many improvements to ft2, including: 
- SNR displayed on decode line
 - Separate transmit() subroutine
 - Output sent to all_ft2.txt
 - Display Rx level (hit L to toggle On/Off)
 - Auto-sequencing  (hit A to toggle On/Off)
 2019-01-16 13:10:36 -05:00
Joe Taylor 60fb12dcd4 Add several more messages for testing. 2019-01-15 20:19:18 -05:00
Joe Taylor 4a4a83f021 Correct the logic for PTT control through a Windows COM port. 2019-01-15 19:21:58 -05:00
Joe Taylor bbbe83ffe5 Progress: ft2.exe is now basically functional in audio-loopback tests. 2019-01-15 15:05:04 -05:00
Joe Taylor 8a6cee7e26 Add files for command-line program ft2[.exe]. 2019-01-14 16:39:50 -05:00
Steve Franke 348e7c8ad5 In principle, ft2d can now decode multiple signals. Not yet tested. 2019-01-13 15:44:16 -06:00
Steve Franke 1fb89929a9 Make ft2d slightly more robust. Still very rough. 2019-01-13 10:58:35 -06:00
Steve Franke 8f1baae048 If delay=0.0 make Watterson use only a single component to simulate flat fading. 2019-01-13 09:25:30 -06:00
Steve Franke cf1fe6c3d6 More work on FT2. New frame format is 16sync + 128codeword. Data chunk is assumed to be 2.5s long. A rudimentary sync routine is implemented which finds the single strongest signal. 2019-01-12 13:28:10 -06:00
Steve Franke f63f0301eb Tweak some decoder parameters for better performance. 2019-01-10 10:35:09 -06:00
Steve Franke e0658f183f Add simulator (ft2sim.f90) and decoder (ft2d.f90) for experimental medium-fast mode. 2019-01-10 10:20:31 -06:00