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WSJT-X/lib/ft8
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Steven Franke 70b84478f0 Add WW_DIGI to the special activities section. Make necessary changes to 
the decoders. Also, an experimental change to the FT4 decoder to base
AP decoding passes on 4-symbol block detection instead of single symbol
detection. This provides about 1 dB improvement on the AWGN channel.
Sensitivity changes on other channels are TBD.
2020-01-24 11:26:36 -06:00
..
baseline.f90
Improve FT8 SNR estimates in two ways:
2019-11-27 15:58:52 -06:00
bpdecode174_91.f90
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
chkcrc13a.f90
Fix up some compiler errors when using gfortran v9
2019-02-10 20:43:51 +00:00
chkcrc14a.f90
Fix up some compiler errors when using gfortran v9
2019-02-10 20:43:51 +00:00
compress.f90
Move subroutine h1() to its own file, h1.f90.
2017-12-09 03:21:48 +00:00
DXpedQuickStart.txt
Updates to the draft "DXpedition Quick Start Guide".
2017-12-13 20:38:20 +00:00
encode174_91.f90
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
encode174.f90
Edit some comments. No functional changes.
2018-02-24 21:40:47 +00:00
extractmessage174_91.f90
Fix up some compiler errors when using gfortran v9
2019-02-10 20:43:51 +00:00
extractmessage174.f90
Fix up some compiler errors when using gfortran v9
2019-02-10 20:43:51 +00:00
filt8.f90
Add a filtering for signals generated in ft8sim. Beware, not all options work.
2017-12-13 20:22:15 +00:00
foxfilt.f90
Several enhancements to DXpedition mode:
2017-12-27 21:06:57 +00:00
foxgen_wrap.f90
Reconfigure foxgen.f90 for 77bit messages. Fox now transmits only 77bit messages.
2018-10-04 17:47:36 -05:00
foxgen.f90
Housekeeping. Remove unused code and unused variables. Silence some compiler warnings.
2018-12-05 16:06:33 -06:00
ft8_downsample.f90
Fix an off-by-one error. Remove attempt to refine DT estimate using polynomial interpolation.
2018-07-02 16:13:27 -05:00
ft8_params.f90
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
ft8_testmsg.f90
Bring test28.f90, ft4_testmsg.f90, ft8_testmsg.f90, ft8code.f90 up to date.
2020-01-03 13:34:56 -05:00
ft8apset.f90
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
ft8b.f90
Add WW_DIGI to the special activities section. Make necessary changes to
2020-01-24 11:26:36 -06:00
ft8code.f90
Bring test28.f90, ft4_testmsg.f90, ft8_testmsg.f90, ft8code.f90 up to date.
2020-01-03 13:34:56 -05:00
ft8d.f90
…
ft8sim_fsk.f90
Rename ft8sim files as follows:
2019-11-27 09:08:17 -06:00
ft8sim.f90
Rename ft8sim files as follows:
2019-11-27 09:08:17 -06:00
gen_ft8wave.f90
Squash a SEGV
2019-04-20 01:14:23 +01:00
genft8.f90
FT4: Subtraction is basically working.
2019-04-18 14:16:39 -05:00
genft8refsig.f90
Fix an off-by-one problem.
2018-06-30 14:56:19 -05:00
get_spectrum_baseline.f90
Improve FT8 SNR estimates in two ways:
2019-11-27 15:58:52 -06:00
h1.f90
Move subroutine h1() to its own file, h1.f90.
2017-12-09 03:21:48 +00:00
ldpc_174_87_params.f90
…
ldpc_174_91_c_colorder.f90
Make two sync passes, one for each sync array. Label candidates with their type and decode accordingly.
2018-06-05 16:44:52 -05:00
ldpc_174_91_c_generator.f90
Make two sync passes, one for each sync array. Label candidates with their type and decode accordingly.
2018-06-05 16:44:52 -05:00
ldpc_174_91_c_parity.f90
Make two sync passes, one for each sync array. Label candidates with their type and decode accordingly.
2018-06-05 16:44:52 -05:00
ldpc_174_91_c_reordered_parity.f90
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
osd174_91.f90
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
subtractft8.f90
Tweak for consistency.
2019-07-12 10:41:09 -05:00
sync8.f90
Improve FT8 SNR estimates in two ways:
2019-11-27 15:58:52 -06:00
sync8d.f90
Remove all vestiges of old (isync=1) FT8 mode. Many changes here!
2018-11-05 11:59:48 -05:00
twkfreq1.f90
…
watterson.f90
Make Watterson simulator causal.
2019-01-25 16:26:13 -06:00