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38 Commits

Author SHA1 Message Date
Joe Taylor 5693be1ee1 Fix bugs for generating and decoding JT65 shorthand messages. 2020-05-07 13:54:02 -04:00
Joe Taylor eafaa1ce28 Fix a bug in generating EME shorthand messages in JT65sim. 2020-04-09 10:40:21 -04:00
Joe Taylor 17f420b48b Allow generation of messages with EME-style 'OOO' report. 2020-04-07 18:25:35 -04:00
Steve Franke 42d68ff84e Add frequency drift (Hz/min) option to jt65sim. 2018-12-01 09:17:58 -06:00
Steve Franke 2b0f7a74e7 Remove a diagnostic write statement. 2018-11-29 11:18:48 -06:00
Steve Franke 9cebf3a540 Discourage jt65sim from crashing when 11025 sample rate is selected. 2018-11-29 10:34:27 -06:00
Steve Franke 5741407070 Enable jt65sim to simulate the shorthand messages RO,RRR, and 73 2018-11-28 16:04:01 -06:00
Joe Taylor d95d2df5b6 Old-style "NA VHF Contest" mode removed from all Fortran routines. 2018-07-10 15:09:42 -04:00
Steven Franke 4f0e73f68f Tweaks to simulators. 
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
Steven Franke b7543dce08 When SNR>90 dB is specified, simulated signal is noiseless. If Doppler spread is nonzero, then signal will have random peak amplitude. In this case normalize the signal so that peak amplitude=32767. 
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8391 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
 2018-01-02 00:13:21 +00:00
Steven Franke df6fe7a600 Replace hardwired Nyquist frequency with variable (fsample/2). Add a clipping warning. 
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8390 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
 2018-01-01 23:23:19 +00:00
Bill Somerville d48fb58ffa Enhance jt65sim to allow 11025 Hz rate, selectable base frequency and o/p gain offset. 
Needs a review.

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8388 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
 2018-01-01 22:02:31 +00:00
Steven Franke f072b5309c Add -M option to jt65sim, allowing it to produce arbitrary test messages. 
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8216 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
 2017-11-03 22:11:20 +00:00
Bill Somerville dd1362b69a Rationalize NA contest mode 
Generic message packing and unpacking routines now understand antipode
grid contest messages.  These messages  are now recognized as standard
messages in  message response processing and  dealt with appropriately
when contest mode is selected and applicable (currently FT8 and MSK144
only).

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8062 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
 2017-09-01 20:10:35 +00:00
Bill Somerville e565e1796a Clean up some compiler warnings 
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
Joe Taylor ea84eaf514 Change the definition of Doppler Spread (option "-d x" used in jt65sim 
so that specified spreads correspond to the full limb-to-limb spread 
for EME.  Line widths at -3 dB will be 1/3 of the specified value.


git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6563 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
 2016-03-28 18:52:12 +00:00
Joe Taylor 9f388b63dc Many changes in aid of decoding signals with significant Doppler spread 
in submodes JT65B, C.  More changes still to come!


git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6535 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
 2016-03-17 13:28:57 +00:00
Joe Taylor 8d21cdf1c7 Change Doppler spread to Lorentzian shape with cutoff at x=3. Several 
tweaks to output format from fer65.


git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6534 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
 2016-03-15 20:44:03 +00:00
Joe Taylor 0224e76c44 Change the definition of "d" so that width of generated tones is equal 
to the requested Doppler spread.  Previously they were wider by the 
factor 2*sqrt(log(2)).


git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6533 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
 2016-03-15 14:28:07 +00:00
Joe Taylor 2072f6f7c6 Look for weaker Sync indications when naggressive > 0 and ntol < 1000. 
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6296 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
 2015-12-18 19:58:10 +00:00
Joe Taylor a263657ba1 Include DT and fSpread on output to screen. 
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6288 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
 2015-12-17 15:35:39 +00:00
Joe Taylor d7e7b43045 Many changes to the JT65 decode chain. This is development code! It 
includes an initial implementation of the FTRSD decoder with a "qual"
parameter for evaluation of candidate codewords.  Also includes hinted
decoding.  Further testing is needed.


git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6278 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
 2015-12-15 21:24:22 +00:00
Bill Somerville b66e0fc9b4 Clarify escaping of jt65sim arguments on *nix shells 
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6277 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
 2015-12-15 15:56:37 +00:00
Bill Somerville 5f9ed5a5ac Tidy up command line processing in Fortran tools 
Build script now  builds jt65. The tools jt65 and  jt65sim usilize the
options module for all comamnd line parsing.

The  tool  jt65sim  now  has  conventinal  command  line  options  and
switchs. Default values have been  added where appropriate and options
documentation  updated. An  option to  disable PRNG  seeding has  been
added.

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6276 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
 2015-12-15 15:35:04 +00:00
Bill Somerville eedb6d3458 Remove spurious argumenst that should never have been there 
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6275 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
 2015-12-15 11:08:56 +00:00
Bill Somerville 3962a3514a More PRNG rationalization 
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6274 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
 2015-12-15 01:36:05 +00:00
Bill Somerville 6be4f3d376 Rationalize random number seeding in C and Fortran 
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
Steven Franke 3472accbdb Comment out call to sgrand. 
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6229 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
 2015-12-06 13:06:14 +00:00
Steven Franke cca493e28c Mods to jt65sim to use new seed for each invocation - for use in a script that estimates high-snr FER. 
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6227 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
 2015-12-06 04:37:14 +00:00
Joe Taylor 057750714e Remove a stray minus sign in jt65sim.f90. 
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6220 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
 2015-12-04 15:02:03 +00:00
Steven Franke 864a1f24a6 Enable jt65sim to accept real-valued snr and generate unique callsigns when nsig>1. 
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6195 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
 2015-11-27 16:55:55 +00:00
Steven Franke c2ed418262 Fix half-symbol offset in jt65sim. 
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6187 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
 2015-11-26 13:41:07 +00:00
Joe Taylor 56e3638bc5 Increase the JT65 range of acceptable DT: now -2 to +5 s. Note that 
displayed DT values appear to be to low by 0.2 s -- they range from
-2.2 s to +4.8 s, according to files generated by jt65sim.


git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6179 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
 2015-11-25 16:40:22 +00:00
Joe Taylor 1a08ce3383 Correct the S/N scale in jt65sim; set some params for command-line use of jt9. 
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6172 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
 2015-11-24 18:20:45 +00:00
Joe Taylor 15d4618725 Correct a few comments. 
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6133 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
 2015-11-19 20:51:54 +00:00
Joe Taylor 70a5fbd34c Add optional Rayleigh fading to jt65sim. 
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
Joe Taylor 8e0f970149 Minor tweaks to jt65sim. 
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6126 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
 2015-11-18 20:04:47 +00:00
Bill Somerville 1a23757b26 Reintegrate merge from wsjtx_exp branch. 
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6122 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
 2015-11-18 01:28:12 +00:00