Joe Taylor
|
25bfa3798a
|
Transmit FT8 using a gaussian-filtered waveform.
|
2019-02-22 13:39:39 -05:00 |
|
Steve Franke
|
d9c99601ae
|
Fix bugs in gen_ft8wave.f90.
|
2019-02-21 15:56:21 -06:00 |
|
Steve Franke
|
1acb5d5d99
|
Add routines needed to test FT8 with GFSK pulses.
|
2019-02-21 15:48:02 -06:00 |
|
Bill Somerville
|
7d66f442d6
|
Fix up some compiler errors when using gfortran v9
|
2019-02-10 20:43:51 +00:00 |
|
Steve Franke
|
c52f755afc
|
Make Watterson simulator causal.
|
2019-01-25 16:26:13 -06:00 |
|
Bill Somerville
|
aee9c09851
|
Merge branch 'develop' into feat-ft2
|
2019-01-16 20:44:44 +00:00 |
|
Steve Franke
|
8f1baae048
|
If delay=0.0 make Watterson use only a single component to simulate flat fading.
|
2019-01-13 09:25:30 -06:00 |
|
Steve Franke
|
c4d078f55f
|
Remove unnecessary character string space-padding.
|
2019-01-03 14:02:17 -06:00 |
|
Steve Franke
|
1a8ddad307
|
In ft8apset, mycall and dxcall must be at least 3 characters long, otherwise they are treated as non-existent.
|
2018-12-24 11:19:07 -06:00 |
|
Steve Franke
|
b44d7b472d
|
Fix a typo.
|
2018-12-24 10:49:40 -06:00 |
|
Steve Franke
|
318ce0020e
|
Try harder to ensure that we don't waste time trying to do ap decoding that would involve nonstandard calls. Current code does not support ap decoding with non-standard calls.
|
2018-12-24 10:45:02 -06:00 |
|
Steve Franke
|
5034e21291
|
Remove some diagnostic writes.
|
2018-12-21 09:51:39 -06:00 |
|
Steve Franke
|
7a40bf2e4b
|
Use separate hash tables for 10, 12, and 22 bit hashes. Make unpacking i3=4 messages depend on whether unpack is being done on a received message, or a to-be-transmitted message. Give mycall13 priority over hash table entries in certain contexts.
|
2018-12-20 15:08:29 -06:00 |
|
Steve Franke
|
307948a25d
|
Remove an unused array.
|
2018-12-16 11:55:36 -06:00 |
|
Steve Franke
|
dfceef3662
|
Fix up ft8sim so that it prints a warning when SNR is set too high so that data will be clipped.
|
2018-12-07 11:10:25 -06:00 |
|
Steve Franke
|
337bae6d0d
|
Housekeeping. Remove unused code and unused variables. Silence some compiler warnings.
|
2018-12-05 16:06:33 -06:00 |
|
Steve Franke
|
a5e82ac94c
|
Delete an unused routine. Fix a typo in a comment.
|
2018-12-04 20:01:55 -06:00 |
|
Steve Franke
|
6fc27d550d
|
Fix an egregious bug and another not-so-egregious bug. The egregious bug prevented decodes of most signals with negative DT.
|
2018-12-03 07:18:52 -06:00 |
|
Steve Franke
|
df37d9b1f7
|
Remove cqhund stuff and some other unused code.
|
2018-11-30 13:46:54 -06:00 |
|
Joe Taylor
|
461b87f047
|
Minor improvement in code that checks for bad FT8 messages.
|
2018-11-27 15:34:01 -05:00 |
|
Joe Taylor
|
9e74125799
|
Don't allow an illegal message to crash routine genft8().
|
2018-11-27 15:26:24 -05:00 |
|
Steve Franke
|
ab34db7556
|
Get rid of unused variable ldecode77.
|
2018-11-05 14:40:55 -06:00 |
|
Joe Taylor
|
0235cf69ff
|
Remove all vestiges of old (isync=1) FT8 mode. Many changes here!
|
2018-11-05 11:59:48 -05:00 |
|
Steve Franke
|
2b48cc4487
|
Update wsprd README and delete an obsolete program.
|
2018-10-31 21:02:46 -05:00 |
|
Steve Franke
|
87b97039b6
|
Remove a small bias in Watterson channel simulator channel amplitude.
|
2018-10-25 16:39:17 -05:00 |
|
Steve Franke
|
17ed242878
|
Minor tweak - make program name the same as file name.
|
2018-10-19 19:45:38 -05:00 |
|
Steve Franke
|
d0f0d420a9
|
Convert ft8sim.f90 to use 77bit messages. Remove ft8sim2.f90.
|
2018-10-19 16:52:00 -05:00 |
|
Steve Franke
|
fffa692ac5
|
Convert ft8code to 77bit messages.
|
2018-10-19 16:36:32 -05:00 |
|
Steve Franke
|
59278b9b6b
|
Tweak ndeep determination.
|
2018-10-10 16:06:53 -05:00 |
|
Steve Franke
|
4b54873c81
|
Implement AP for all contest modes and also for Hound mode. AP is always active for Hounds. AP is automatically disabled if MyCall or DxCall are extended callsigns.
|
2018-10-04 17:48:55 -05:00 |
|
Steve Franke
|
0b3b050221
|
First cut at AP decoding for all values of ncontest.
|
2018-10-04 17:48:23 -05:00 |
|
Steve Franke
|
876f69b1d7
|
Remove some debug print statements.
|
2018-10-04 17:47:52 -05:00 |
|
Steve Franke
|
b993935494
|
Reconfigure foxgen.f90 for 77bit messages. Fox now transmits only 77bit messages.
|
2018-10-04 17:47:36 -05:00 |
|
Steve Franke
|
b5cc35e430
|
Cleaned up and simplified AP decoding. Enabled AP decoding for ncontest=0 and ncontest=4 (RU) so far. Missing MyCall or DxCall or nonstandard calls will disable AP passes that wouldn't make sense.
|
2018-10-04 17:45:15 -05:00 |
|
Steve Franke
|
77bb49e9ac
|
Beginnings of AP for RU. Not working yet.
|
2018-10-04 17:44:34 -05:00 |
|
Joe Taylor
|
6cecef42aa
|
Restore a missing call to unpack77().
|
2018-10-04 16:09:02 -04:00 |
|
Steve Franke
|
d9cf9bed3c
|
Better handling of decodes with unhashed callsigns.
(cherry picked from commit 3b783a083e)
|
2018-09-28 17:07:28 -05:00 |
|
Steve Franke
|
13b5cc479b
|
Fix and re-enable polyfit SNR.
|
2018-09-26 08:29:01 -05:00 |
|
Steve Franke
|
669d54197d
|
Polynomial-fit SNR is still not right. Disable it again, for now.
|
2018-09-24 19:36:30 -05:00 |
|
Steve Franke
|
591de66a31
|
Fix up SNR calculation so that it reverts to SJF SNR when polyfit SNR is not sane.
|
2018-09-24 19:04:34 -05:00 |
|
Steve Franke
|
9075fef228
|
Revert to Steve's SNR estimator, for now.
|
2018-09-24 17:40:14 -05:00 |
|
Steve Franke
|
332a3f1561
|
Calibrate noise-baseline-fit based SNR estimate for FT8 v2 and print those estimates with decodes.
|
2018-09-23 13:03:20 -05:00 |
|
Joe Taylor
|
705004d206
|
Initialize i3, n3 before two more calls to pack77().
|
2018-09-19 13:05:32 -04:00 |
|
Joe Taylor
|
653e53b125
|
Apply the fix for i3, n3 before calling pack77() in genft8_174_91.f90.
|
2018-09-19 11:48:30 -04:00 |
|
Joe Taylor
|
aca7273fc3
|
Correct the sizes of character variables msg and msgsent.
|
2018-09-13 12:39:08 -04:00 |
|
Joe Taylor
|
a9deb8c1fd
|
Merge branch 'integrate-77bit' of bitbucket.org:k1jt/wsjtx into integrate-77bit
|
2018-09-13 09:51:34 -04:00 |
|
Joe Taylor
|
d82949c54e
|
Correct the display of usage examples.
|
2018-09-13 09:50:34 -04:00 |
|
Steve Franke
|
642540ff8f
|
unpack77 now returns logical variable unpk77_success, which will be .false. if there is something obviously wrong with the message. Still to do: set the flag if the unpacked message contains CQ in an implausible place.
|
2018-09-12 15:06:26 -05:00 |
|
Steve Franke
|
629d061e30
|
Move a couple of simulation files to fsk4hf, which will eventually be excluded from releases.
|
2018-09-12 13:46:40 -05:00 |
|
Joe Taylor
|
ca2c1a2b8b
|
Don't use "appendage" ~ or ! on decoded lines. Protect against bad read in genft8_174_91.
|
2018-09-02 18:55:13 -04:00 |
|
Joe Taylor
|
a8ad1569cc
|
Protect against a potential bounds error.
|
2018-08-31 10:47:31 -04:00 |
|
Joe Taylor
|
201b29993c
|
More fixes related to nonstandard calls.
|
2018-08-29 14:18:56 -04:00 |
|
Steve Franke
|
20cfae891e
|
Make sync8.f90 more robust. Increase number of candidates to 300.
|
2018-08-08 09:29:08 -05:00 |
|
Steve Franke
|
f7d423296f
|
Minor code cleanup.
|
2018-07-29 17:15:02 -05:00 |
|
Steve Franke
|
b67589d29f
|
Bring isync=1 message simulator, ft8sim, up to date. Fix ap decoding for isync=1 messages.
|
2018-07-29 16:29:11 -05:00 |
|
Steve Franke
|
df0b5e2622
|
Progress on AP decoding for 77bit messages. AP is basically working for regular i3=1 messages.
|
2018-07-28 17:32:45 -05:00 |
|
Steve Franke
|
750bf569f3
|
ft8sim2: make it easier to identify callsign and grid bits in simulated messages.
|
2018-07-28 09:26:54 -05:00 |
|
Steve Franke
|
bee1ecd109
|
Detect and reject messages with invalid i3 and or n3.
|
2018-07-28 08:50:50 -05:00 |
|
Joe Taylor
|
017629ac36
|
Suppress any "QU1RK" decodes, they are necessarily bad.
|
2018-07-27 10:43:58 -04:00 |
|
Steve Franke
|
59f713ba76
|
The change committed to decodedtext.cpp fixes a crash that occurred when processing certain isync=2 decodes. Is this the right fix? Other changes are minor code cleanups.
|
2018-07-17 17:48:23 -05:00 |
|
Steve Franke
|
ab7c811552
|
Remove bcontest from ft8sim2.f90 so that it works.
|
2018-07-17 16:55:22 -05:00 |
|
Joe Taylor
|
2c5dd053f3
|
Don't send "mygrid" where it's no longer needed.
|
2018-07-11 16:32:08 -04:00 |
|
Joe Taylor
|
14385611be
|
Code cleanup related to "bcontest". Auto-seq now OK for new NA VHF Contest messages.
|
2018-07-11 10:13:42 -04:00 |
|
Joe Taylor
|
c1e71a46ef
|
Remove more "bcontest" stuff from Fortrn code.
|
2018-07-10 15:32:59 -04:00 |
|
Joe Taylor
|
d95d2df5b6
|
Old-style "NA VHF Contest" mode removed from all Fortran routines.
|
2018-07-10 15:09:42 -04:00 |
|
Steven Franke
|
e7b19b29b0
|
Screen out FT8 decodes with excessively large number of hard errors. These are almost certainly undetected errors.
|
2018-07-08 13:29:12 +00:00 |
|
Steven Franke
|
8eb58a47ba
|
Fix a problem in ldpcsim174_91.f90.
|
2018-07-08 13:19:22 +00:00 |
|
Steve Franke
|
fd0ad33028
|
MSK144: Wholesale changeover to (128,90) code with 77-bit messages. Compiles and doesn't crash, but communication between two instances has not been tested.
|
2018-07-07 10:35:59 -05:00 |
|
Steve Franke
|
42f75bf404
|
Fix graymap.
|
2018-07-07 08:18:31 -05:00 |
|
Steve Franke
|
5948b671eb
|
Still working on getting c++/fortran interface right.
|
2018-07-06 18:14:56 -05:00 |
|
Steve Franke
|
b83b66e665
|
Changed genft8 and related routines to accept 37 char message and return 37 char msgsent. For now, in mainwindow, just copy the 22 char message into message37.
|
2018-07-05 15:32:04 -05:00 |
|
Joe Taylor
|
e5e81e01fb
|
Make packjt77 into a module; move all its routines into file packjt77.f90.
|
2018-07-05 14:07:17 -04:00 |
|
Steve Franke
|
4b8ea3ef45
|
Wire up the 'Decode only 77-bit messages' checkbox.
|
2018-07-05 07:51:10 -05:00 |
|
Steve Franke
|
ed92d5a86c
|
SNR estimator is broken for isync=2 messages, due to different signal normalization. For now, go back to SJF's old signal/(noise+interference) estimator.
|
2018-07-04 16:58:24 -05:00 |
|
Steve Franke
|
a448dc5640
|
Use 37 character message for de-duping. Comment out some code that needs to be updated to work with new message type.
|
2018-07-04 16:20:12 -05:00 |
|
Steve Franke
|
50d8945bca
|
Fix up Usage message for ft8sim2.
|
2018-07-04 12:41:43 -05:00 |
|
Steve Franke
|
d70e3dbb26
|
Fix some problems in ft8sim2.f90.
|
2018-07-04 10:38:10 -05:00 |
|
Steve Franke
|
df652e383b
|
More progress on making ft8sim2 and ft8b_2 encode and decode all message types. For now, decoder.f90 is hardwired to always print 37 characters.
|
2018-07-04 10:15:01 -05:00 |
|
Steve Franke
|
91388f8ba2
|
Create a separate simulation program, ft8sim2, for New Style 77 bit messages. Hashes are not handled yet. Needs more testing.
|
2018-07-04 09:52:39 -05:00 |
|
Steve Franke
|
24f4792b23
|
Fix incorrect reference to extract77 - should have been unpack77
|
2018-07-03 15:59:24 -05:00 |
|
Steve Franke
|
57ebc30369
|
Call the new extract77 in ft8b_2. Define msg37 and msgsent37 to replace their 22-bit predecessors.
|
2018-07-03 15:34:39 -05:00 |
|
Steve Franke
|
bb12c7424d
|
Module packjt77.f90 includes the 77bit utility programs called by pak77 and unpack77. Modify genft8_174_91.f90 to generate type 2 messages.
|
2018-07-03 15:08:38 -05:00 |
|
Steve Franke
|
cf64cad091
|
Send m_i3, m_n3, m_isync from mainwindow to genft8.f90 and use these to determine the type of generated message, according to the scheme described in lib/77bit/NewCode.txt.
|
2018-07-03 14:37:50 -05:00 |
|
Steve Franke
|
9295726931
|
Fix the sign of i3 when trying to subtract a type message.
|
2018-07-03 11:24:42 -05:00 |
|
Steve Franke
|
385cda8e01
|
Comment out a debug message.
|
2018-07-03 11:17:21 -05:00 |
|
Steve Franke
|
3f897225fe
|
genft8 now looks at sign of n3 and i3. If either sign is negative, generate a type 1 (classic) message. Otherwise generate type 2. Type 1 seems to work. Type 2 does not yet work.
|
2018-07-03 11:10:47 -05:00 |
|
Steve Franke
|
91b7544ba1
|
More progress toward switching to (i3,n3). wsjtx runs without crashing now.
|
2018-07-03 09:49:11 -05:00 |
|
Steve Franke
|
c39dd63f79
|
Send (i3,n3) from mainwindow to genft8. First steps at interpreting (i3,n3) to send itype=1 for classic messages and itype=2 otherwise. Very buggy at this stage.
|
2018-07-03 09:28:16 -05:00 |
|
Steve Franke
|
5fc4fe6eda
|
Fix an off-by-one error. Remove attempt to refine DT estimate using polynomial interpolation.
|
2018-07-02 16:13:27 -05:00 |
|
Steve Franke
|
26de3219d3
|
Fix an off-by-one problem.
|
2018-06-30 14:56:19 -05:00 |
|
Steve Franke
|
83d81bdcd2
|
Streamline the sequence detector code.
|
2018-06-27 15:11:39 -05:00 |
|
Steve Franke
|
229ee09b99
|
Minor code cleanup.
|
2018-06-27 09:55:34 -05:00 |
|
Steve Franke
|
03abada09b
|
More progress on sequence demodulator. Can now do nsymb=1,2, and/or 3.
|
2018-06-26 11:11:58 -05:00 |
|
Steve Franke
|
7684bd0e78
|
Work toward a generalized sequence detector for nsymbols=1, 2, or 3. Works for nsymbol=3, but not yet for nsymbol=1, or 2.
|
2018-06-25 17:01:34 -05:00 |
|
Steve Franke
|
0f5759270e
|
Added 2-symbol sequence detection for proof-of-concept tests.
|
2018-06-22 11:20:28 -05:00 |
|
Steve Franke
|
3f8c218ebe
|
Make changes to ft8b_2.f90 to accommodate the new 77-bit in/out encoding/decoding routines. With these changes, WSJT-X decodes (174,91) frames.
|
2018-06-17 12:11:32 -05:00 |
|
Steve Franke
|
1a31e5b2d6
|
For (174,91) code, move CRC generation and testing into encode and decode routines. Make ldpcsim174_91.f90 work with the new encode/decode routines.
|
2018-06-17 08:44:10 -05:00 |
|
Steve Franke
|
e16e78790a
|
Create chkcrc13a.f90. Should chkcrc12a, chkcrc13a, and chkcrc14a be combined into one routine?
|
2018-06-16 09:04:51 -05:00 |
|
Steve Franke
|
a5837bd5c7
|
AP decoding now works for type 2 frames. Also cleaned up and simplified AP implementation in ft8b_2.
|
2018-06-11 15:10:44 -05:00 |
|
Steve Franke
|
6fe9e8f860
|
Remove the need to re-order the parity-check matrix columns for compatibility with the generator matrix. Redefine the codeword to have the form [91 message bits|83 parity bits].
|
2018-06-09 13:05:11 -05:00 |
|