0ca6cbb575
wsprd: improve decoding and reduce the number of false decodes
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Hashtable entries now include the 4-digit grid obtained from the most
recent Fano decode of the callsign. The stored grid is used to validate
OSD decodes. OSD decodes of type 1 messages are accepted only if the
callsign is present in the hashtable and if the grid matches the grid
stored in the hashtable.
2020-02-25 10:48:38 -06:00
3176c1d3ef
wsprd Makefile now builds wsprsim too.
2019-03-01 17:48:57 -06:00
4d5fa21821
More tweaks to wsprd Makefile.
2019-03-01 17:07:11 -06:00
9ff9dc5c42
Make wsprd Makefile work on Linux with gcc/gfortran.
2019-03-01 14:36:26 -06:00
db5c9e1fe9
Make wspr OSD decoding work with type 2 messages (extended callsign + power in dBm).
2018-12-24 12:52:41 -06:00
081a302aca
wsprd: further refinement of OSD decode quality check.
2018-12-21 19:24:16 -06:00
ddd9e8c3fb
wsprd: more rigorous quality checking of OSD-produced decodes. For now, discard all OSD decodes that map to an extended callsign.
2018-12-21 16:56:38 -06:00
30d587ffc7
Fix a couple of WSPR memory leaks and remove some compiler warnings
2018-11-12 13:58:35 +00:00
2b48cc4487
Update wsprd README and delete an obsolete program.
2018-10-31 21:02:46 -05:00
261c68ec6d
Refine and clean up wspr osd code.
2018-09-11 16:45:17 -05:00
af7feaf65a
No need to examine every entry in the hash table. Just calculate the hash of OSD-produced callsigns and see if they are in the table. Add OSD decoding to the deep setting for wspr decoding.
2018-09-10 17:01:50 -05:00
0c60db50d3
Experimental -o option for wsprd uses ordered-statistics decoder. Decodes are accepted only if the callsign exists in the hashtable.
2018-09-09 20:30:23 -05:00
3a8b2085eb
Update a copyright notice.
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8544 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2018-03-07 16:20:40 +00:00
0ce5de0f28
Another round of tweaks to wsprd.
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8500 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2018-02-12 01:13:03 +00:00
0a21abd6bc
Move wsprd_exp.c into wsprd.c. Change CMakeLists.txt so that it builds wsprd.c.
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8497 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2018-02-11 21:36:52 +00:00
e7077b4842
When called with -B, make second-pass the same as it was before block detection was introduced. This will be obtained with the Normal decode setting in WSJT-X.
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8496 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2018-02-11 21:13:41 +00:00
0829cdb98c
Fix memory allocation error.
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8494 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2018-02-11 19:06:31 +00:00
4f96fbd1ca
Use calloc instead of malloc with init loop.
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8493 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2018-02-11 18:33:16 +00:00
0eb941e082
Fixed numerous memory leaks in wsprd with the help of valgrind..
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8492 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2018-02-11 17:29:38 +00:00
de2e6e1a2c
Remove some unused variables.
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8489 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2018-02-11 02:24:05 +00:00
7578126454
Prevent a crash caused by a certain type of false decode. Update copyright date.
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8452 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2018-02-03 16:31:22 +00:00
f1aafe76c7
Clean up wsprd_exp. Build WSJT-X with wsprd_exp, for testing.
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8408 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2018-01-13 03:26:54 +00:00
9f9932b560
New scheme - first pass is same as stock wsprd with blocksize=1; second pass tries blocksizes {1,2,3}. Drift estimation is turned off on second pass for smaller frequency estimate variance.
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8404 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2018-01-12 22:47:59 +00:00
2697ad1d56
Don't write blocksize to wsprd.spots because it seems to corrupt the spots sent to wsprnet.
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8402 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2018-01-12 01:54:33 +00:00
ae5e00d83c
Restrict max blocksize to [1,2,3].
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8401 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2018-01-11 23:49:03 +00:00
fc6389d3ce
Loop over all blocksizes, write successful blocksize to ALL_WSPR.TXT.
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8400 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2018-01-11 23:35:11 +00:00
4f0e73f68f
Tweaks to simulators.
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8398 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2018-01-07 15:26:43 +00:00
e8e2d57cc2
Make the sequence detector work for arbitrary frequency offsets. Assume drift=0 for now.
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8396 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2018-01-05 21:57:15 +00:00
3ea288b97a
Add new command line option (-f) to set simulated signal's frequency offset.
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8395 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2018-01-04 17:40:33 +00:00
62eabdba8e
Sequence detector block length is set from command line using -b <nblock>.
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8394 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2018-01-02 03:11:43 +00:00
e2c76b5991
Experimental noncoherent block sequence detector for wspr. Not yet completely functional.
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8393 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2018-01-02 02:16:44 +00:00
d79e413da5
Make wsprsim.c accept non-integer SNR
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8392 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2018-01-02 01:16:13 +00:00
794e6ada00
Fix a wsprd bug that was introduced in r7090, which attempted to fix encoding of callsigns like 5N/6O0O.
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7391 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2016-12-17 06:41:07 +00:00
83937fbb0e
In ALL_WSPR.TXT: add another decimal place for DT and place for another MHz digit.
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7275 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2016-11-01 21:15:29 +00:00
538f814905
Fix a bug in wspr callsign packing that affected wsprsim and signal subtraction for a subset of callsigns.
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7090 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2016-09-16 19:38:18 +00:00
c2c982dba9
Fix an issue with hashing compound callsigns with prefixes shorter than 3 characters
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7044 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2016-08-29 17:02:16 +00:00
e7ecd5f5b3
Correcty unpack both 4 & 6 character grids from WSPR type 3 messages
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7043 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2016-08-29 17:02:08 +00:00
7281664990
Fix file handle leak, thanks to Mike W9MDB for the patch.
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7038 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2016-08-29 17:01:31 +00:00
5e8f9074a6
Fix a regression that had degraded the accuracy of wsprd frequency reporting.
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7034 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2016-08-17 23:33:08 +00:00
1d7e86bc35
Binary branding
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6786 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2016-06-21 00:13:52 +00:00
e7bfd6de76
Sharpen
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6785 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2016-06-20 23:53:57 +00:00
e565e1796a
Clean up some compiler warnings
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6591 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2016-04-06 22:37:22 +00:00
abf869f665
Remove wsprd_exp from stand-alone Makefile.
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6574 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2016-04-03 20:01:43 +00:00
0574251ff0
Rename wsprd_exp.c to wsprd.c and eliminate wsprd_exp.c.
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6572 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2016-04-03 19:09:07 +00:00
bf5195414a
Tweaks to wsprd_exp. Apply Pavel's double->float patch, fix long-standing 1-second dt offset, retune metric bias to lower false-decode probability.
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6571 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2016-04-03 00:33:21 +00:00
4de778c4e7
Reverting r6531 and replacing with correct fix
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The WSPR message is unpacked into a symbol per byte array which is
processed by encoding a whole number of bytes of message, this
requires the output array to be bigger than the number of symbols to
accommodate extra values that are not part of the message due to
rounding up to whole bytes. I.e. 176 (11*8*2) elements to contain the
162 symbols.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6532 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2016-03-15 11:46:26 +00:00
e81f018ed5
Fix buffer overrun in WSPR encode
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6531 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2016-03-15 11:17:11 +00:00
6be4f3d376
Rationalize random number seeding in C and Fortran
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6272 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2015-12-14 19:40:44 +00:00
5e2fec1fe4
Squash some compiler warnings
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6145 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2015-11-21 20:23:39 +00:00
70a5fbd34c
Add optional Rayleigh fading to jt65sim.
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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6132 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2015-11-19 20:49:55 +00:00
Steven Franke
Bill Somerville
Joe Taylor
Bill Somerville