Commit Graph

15 Commits

Author SHA1 Message Date
Joe Taylor
c75c4aefda Further improvements to JT9 decoder.
Better AFC (wider range of possible drifts; more accurate DT alignment).
Better definition of metric tables used by Fano decoder.
Zero-centeres soft symbols, instead of offset +128.
Tuned several empirical parameters.


git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@5004 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2015-03-04 17:07:15 +00:00
Joe Taylor
476c0683a8 Further improvements to JT9 decoder.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@4993 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2015-02-27 15:38:24 +00:00
Joe Taylor
2aa42f0414 Minor tweaks in JT9 decoder.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@4989 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2015-02-24 20:19:04 +00:00
Joe Taylor
4fea8ebd0c Optimizations of JT9 and JT65 decoders; change clock in timer routine.
Both decoders now have slightly better performance and faster
execution.  The rare "duplicate decodes" in JT9 were eliminated.
On Windows, at least, calls to f90 routine system_clock() do not
provide correct wall time increments.  Changed to using secnds()
instead.


git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@4571 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2014-10-30 19:29:16 +00:00
Joe Taylor
8f3c9a672b Further optimizations of the decoders, and some code cleanup.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@3492 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2013-07-17 19:13:36 +00:00
Joe Taylor
d9d9047cb0 Clean up all g95 compiler warnings.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@3299 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2013-05-23 01:05:37 +00:00
Joe Taylor
9890731f4f 1. De-activate submodes JT9-5, JT9-10, and JT9-30. (This makes the shared
memory region smaller by some 150 MB.)
2. Some code cleanup (removing unused lstrong, etc.)...


git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@3283 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2013-05-20 14:09:02 +00:00
Joe Taylor
057287fab1 Many changes to the procedures for selecting decodable candidate JT9 signals.
This code may be the new benchmark?


git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@3274 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2013-05-16 16:02:00 +00:00
Joe Taylor
9d30c88a6f Another try at optimizing choices for decoding. Not done yet!
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@3271 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2013-05-15 19:03:49 +00:00
Joe Taylor
bd103459f1 Added routine "chkss2" to test sync vector for sanity before attenpting
Fano decode.


git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@3270 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2013-05-15 15:17:36 +00:00
Joe Taylor
d092f7eae3 Further code cleanup.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@3199 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2013-04-22 15:43:02 +00:00
Joe Taylor
1b810b4f9a General code clean-up to eliminate compiler warnings.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@3198 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2013-04-22 15:08:20 +00:00
Joe Taylor
a0b7f9776a Omitted a sqrt() by mistake.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@2777 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2012-11-27 17:10:28 +00:00
Joe Taylor
113f1770ff Better way of estimating noise level for S/N measurements.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@2776 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2012-11-27 16:48:50 +00:00
Joe Taylor
4f34b46084 Refactor the test9 routine into downsam9, peakdt9, symspec2, ...
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@2775 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2012-11-27 15:38:03 +00:00