Commit Graph

25 Commits

Author SHA1 Message Date
Steven Franke
ce06547b59 Add subtraction routines - not fully tested or tweaked yet.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7787 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-07-06 14:44:17 +00:00
Joe Taylor
ca8e9502b2 Minor tweaks for code cleanup.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7786 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-07-06 14:19:39 +00:00
Joe Taylor
76d1169140 FT8 now uses nsps=1920.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7784 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-07-06 13:38:06 +00:00
Joe Taylor
52d8324382 Baseline code with nsps=2048 in FT8.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7783 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-07-06 12:07:17 +00:00
Joe Taylor
ab3832fa82 In ft8_downsample, compute long FFT only when data have changed.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7780 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-07-03 19:52:36 +00:00
Joe Taylor
4bce86d61e Correct the FT8 downsample factor to be exactly 1/64.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7779 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-07-03 19:01:38 +00:00
Bill Somerville
11a4139350 Fix complex buffer size for real to complex DFT
This fixes a memory corruption issue.

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7776 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-07-02 15:05:17 +00:00
Steven Franke
adf648e0f3 Improved SNR calibration.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7775 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-07-02 11:24:30 +00:00
Steven Franke
ea12ba34fe This stops Steve's mac from crashing.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7773 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-07-02 01:31:43 +00:00
Joe Taylor
cf6ff745a2 Oops! Those two 'unused' variables are actually used.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7772 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-07-02 00:36:45 +00:00
Steven Franke
27de2481bb Remove some unused variables.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7771 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-07-02 00:08:17 +00:00
Joe Taylor
d8c883dd52 Add timer calls for ft8downsample.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7770 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-07-01 20:47:59 +00:00
Steven Franke
4c88ab860b Add more bounds checks.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7762 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-07-01 14:47:52 +00:00
Steven Franke
12c1b45c66 tweak
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7761 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-07-01 14:36:55 +00:00
Steven Franke
ff4e4b1828 Don't need to pass s into ft8b anymore.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7760 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-07-01 14:36:08 +00:00
Steven Franke
c4f056dca8 Fix a bounds violation.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7759 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-07-01 13:45:16 +00:00
Steven Franke
304cbaa672 Use complex signal for fine sync and symbol demod. Lower sync threshold. Improved SNR estimate.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7757 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-07-01 13:08:30 +00:00
Joe Taylor
f6ecfec363 Add some timer calls; fix reporting of FT8 spots to PSKreporter.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7755 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-06-30 20:11:07 +00:00
Joe Taylor
3658e32d57 Use norder=3 at the QSO frequency.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7745 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-06-28 15:34:38 +00:00
Joe Taylor
43295f018d Improvements to FT8 decoder.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7744 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-06-28 14:38:06 +00:00
Joe Taylor
41336209c8 Rearrange some FT8 code for consistency with other modes.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7741 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-06-27 19:44:12 +00:00
Joe Taylor
8b6f3d8920 Fix behavior of RxFreq in FT8 mode.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7738 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-06-26 19:33:26 +00:00
Joe Taylor
91fbeff072 Many GUI adjustments for FT8.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7736 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-06-26 15:24:56 +00:00
Steven Franke
9ae479e9d9 1. add error-pattern rejection to osd174 (factor of 3 speedup for norder=3)
2. osd codeword selected based on correlation discrepancy instead of Hamming dist (improves sensitivity)
3. trap zero-valued spectrum values caused by large dt.
4. trap all-zero codeword
4. both decoders return number of hard errors
5. osd174 returns correlation discrepancy (rejection threshold still needs to be tuned).
6. both decoders return the codeword with bits in as-transmitted order, for subtraction.


git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7735 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-06-23 14:14:09 +00:00
Joe Taylor
de3e975b98 1. ft8sim now generates 25 signals: f=300, 400, ... 2700 Hz.
2. ft8d is now a bare-bones multi-decoder.
3. wsjt-x now includes the bare-bones multi-decoder for FT8.


git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7729 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-06-19 20:15:43 +00:00