Commit Graph

3117 Commits

Author SHA1 Message Date
Steven Franke 7d58df4cc1 In FST4 mode with Single Decode not checked, move candidates within 20 Hz of nfqso to the top of the list. 2020-09-17 14:22:38 -05:00
Joe Taylor 21dc6a5c59 Connect the FLow and FHigh limits for FST4 decoding. 2020-09-16 17:23:59 -04:00
Steven Franke 221ede2903 Remove some unused variables. 2020-09-14 13:07:07 -05:00
Steven Franke b49a90f530 Remove a redundant array. 2020-09-14 13:03:33 -05:00
Steven Franke 1b59d9dc8c Eliminate redundancies from the calculation of sequence correlations. 2020-09-14 12:42:32 -05:00
Steven Franke ca0804450b Remove some redundant code. 2020-09-14 09:07:45 -05:00
Steven Franke 3d8c8e3dd7 Merge branch 'develop' of bitbucket.org:k1jt/wsjtx into develop 2020-09-14 09:00:35 -05:00
Steven Franke 98d52e35ac Speed up FST4 decoding. 2020-09-14 09:00:30 -05:00
Joe Taylor a1baaebee9 Decoder should reject data with rms < 3.0 over first 15 seconds. 2020-09-12 13:46:09 -04:00
Joe Taylor 263675cac4 Fix an oddball result with i*2 numbers: abs(-32768)=-32768. 2020-09-12 09:00:39 -04:00
Joe Taylor 8e69f84bdd Remove some obsolete, commented-out code. No real cghanges! 2020-09-11 18:39:24 -04:00
Bill Somerville 5fdcd8c15a Merge branch 'develop' into feat-fst280 2020-09-11 20:06:20 +01:00
Steven Franke 71fdcd1119 Silence a compiler warning. 2020-09-10 16:11:07 -05:00
Steven Franke 2dcde590df Use widegraph limits for noise baseline fit. Limit signal search to within the widegraph limits. 2020-09-10 14:58:10 -05:00
Joe Taylor 47fcddcb50 Send nfa, nfb to fst4_decode(). 2020-09-10 14:59:52 -04:00
Joe Taylor 01a1688b32 FST4 and FST4W decoder: get freq range from nfqso and ntol; remove BCD submodes, i.e. hmod=2, 4, 8. 2020-09-05 13:14:40 -04:00
Joe Taylor f24d15b16e Eliminate the FST4/FST4W submodes with hmod > 1. 2020-09-04 15:15:30 -04:00
K9AN f066936043 Remove an unused variable from fst4_decode 2020-08-29 19:55:23 +01:00
Steven Franke 5ca81a6507 Use 3rd order polynomial fit to estimate the noise baseline. The
polynomial fit is done over 400 Hz bandwidth for T/R periods longer
than 15s, and over approx. 600 Hz (10 times the signal bandwidth) for
T/R period of 15s.
2020-08-29 19:55:23 +01:00
Steven Franke d82b9f5b0e Speed up decoder by eliminating some complex multiples in sequence detection loop. Add timer calls for doppler spread calculation and sequence detection loop. 2020-08-29 19:55:22 +01:00
Steven Franke ecaca6af9f Fix argument list in call to fet_fst4_bitmetrics.f90 2020-08-29 19:55:22 +01:00
Steven Franke b9328b96c9 Tweaks to update the diagnostics that are written to fort.21. 2020-08-29 19:55:22 +01:00
Steven Franke e02850ae5a Streamline fst4_decode. Add timer for downsampling. 2020-08-29 19:55:22 +01:00
Steven Franke 782c779392 Reconfigure to optimize decoder for MF/LF (high coherence) channels. 2020-08-29 19:55:21 +01:00
Steven Franke 7cb5511ed0 Simplify some code in fst4_decode.f90 - no functional change. 2020-08-29 19:55:21 +01:00
Steven Franke bf06193c10 Add timer call for bit metric calculation. Improve some comments. Make fort.21 ntype parameter more informative. 2020-08-29 19:54:38 +01:00
Steven Franke 6838a6b484 Remove some unneeded code. 2020-08-29 19:50:32 +01:00
Steven Franke 8b7db6556c Changes to the llrs that are used as the basis for AP decoding. 2020-08-29 19:50:17 +01:00
Steven Franke b191e0c5ef Fix SNR calculation for B,C,D submodes. 2020-08-29 19:49:59 +01:00
Steven Franke 9d2bde7180 Fix SNR calculation for B,C,D submodes. 2020-08-29 19:49:46 +01:00
Steven Franke cdbe425e56 Use squared metric for fst4 - works better on fading channel. 2020-08-29 19:49:23 +01:00
Steven Franke 37e05f6074 Set unpk77_success=.false. for messages with i3=0 and n3>6. 2020-08-29 19:48:54 +01:00
K9AN 8159478d51 Remove an unused variable from fst4_decode 2020-08-28 12:25:17 -05:00
Steven Franke e232c32178 Use 3rd order polynomial fit to estimate the noise baseline. The
polynomial fit is done over 400 Hz bandwidth for T/R periods longer
than 15s, and over approx. 600 Hz (10 times the signal bandwidth) for
T/R period of 15s.
2020-08-28 09:22:22 -05:00
Steven Franke ad0540a027 Speed up decoder by eliminating some complex multiples in sequence detection loop. Add timer calls for doppler spread calculation and sequence detection loop. 2020-08-24 10:17:45 -05:00
Steven Franke e3171d2142 Fix argument list in call to fet_fst4_bitmetrics.f90 2020-08-22 09:42:34 -05:00
Steven Franke 091d6d0b1a Tweaks to update the diagnostics that are written to fort.21. 2020-08-21 09:18:59 -05:00
Steven Franke 0e0349e87a Streamline fst4_decode. Add timer for downsampling. 2020-08-20 09:48:32 -05:00
Steven Franke e28215fce5 Reconfigure to optimize decoder for MF/LF (high coherence) channels. 2020-08-19 14:10:28 -05:00
Steven Franke 07486ee0c7 Simplify some code in fst4_decode.f90 - no functional change. 2020-08-19 09:20:48 -05:00
Steven Franke 2c0462f9aa Merge branch 'feat-fst280' of bitbucket.org:k1jt/wsjtx into feat-fst280 2020-08-17 14:12:13 -05:00
Steven Franke 683cd08103 Add timer call for bit metric calculation. Improve some comments. Make fort.21 ntype parameter more informative. 2020-08-17 14:12:08 -05:00
Bill Somerville 4a2a181528 Merge branch 'develop' into feat-fst280 2020-08-17 18:33:00 +01:00
Joe Taylor 42626009b5 TEMPORARY: Diagnostic routine for the "Save All" missing files problem. 2020-08-09 14:21:25 -04:00
Joe Taylor 84e53960cd QRA66 now works up for submodes A-D up to 300 s periods. Submode E presently NG. 2020-08-09 11:04:49 -04:00
Joe Taylor de0476bf3c More changes to allow longer sequences in QRA66 mode. 2020-08-08 16:53:28 -04:00
Joe Taylor e4fad77fa5 QRA66 now works with qra66sim and jt9 and TR periods 15 30 60 120 300 s. 2020-08-08 13:57:24 -04:00
Joe Taylor bf38f4416c Modifications to give QRA64 use of longer TR periods and tone-spacing submodes. Noy yet finished, or tested! 2020-08-08 09:14:12 -04:00
Joe Taylor 2de2874672 Allow for larger irc created by message averaging. Commit test_qra66.f90 2020-08-06 14:23:39 -04:00
Joe Taylor 254e2f61fa Remove diagnostic write to fort.71. 2020-08-06 07:07:16 -04:00