Steve Franke
|
622ed4a3ab
|
Working toward whole-hog switchover to new LDPC code with 77 bit messages in MSK144.
|
2018-07-07 09:44:52 -05:00 |
|
Joe Taylor
|
eb0f9b702d
|
Merge branch 'integrate-77bit' of https://bitbucket.org/k1jt/wsjtx into integrate-77bit
|
2018-07-07 09:55:46 -04:00 |
|
Joe Taylor
|
d3c9d29214
|
Fix a bug in split77.
|
2018-07-07 09:54:34 -04:00 |
|
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 |
|
Joe Taylor
|
00029c1910
|
Merge branch 'integrate-77bit' of https://bitbucket.org/k1jt/wsjtx into integrate-77bit
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2018-07-06 13:04:35 -04:00 |
|
Joe Taylor
|
c5d61f4cf4
|
Now able to generate 72-bit or 77-bit messages.
|
2018-07-06 12:52:39 -04:00 |
|
Steve Franke
|
60de25d9e6
|
Update the todo list.
|
2018-07-06 09:52:48 -05:00 |
|
Joe Taylor
|
4bfdf1e56d
|
Merge branch 'integrate-77bit' of https://bitbucket.org/k1jt/wsjtx into integrate-77bit
|
2018-07-05 16:52:27 -04:00 |
|
Joe Taylor
|
af7f1af22b
|
Update the ToDo list.
|
2018-07-05 16:51:52 -04:00 |
|
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 |
|
Joe Taylor
|
0462008e15
|
Fix a few more issues with hashed callsigns.
|
2018-07-05 13:20:31 -04:00 |
|
Joe Taylor
|
641db21672
|
Fix several problems with the use of hash codes for compound or goofy callsigns.
|
2018-07-05 11:15:06 -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
|
c4e6a310aa
|
Turn off ap symbol generation for type 2 messages. This needs to be completely reworked once basic functionality is established.
|
2018-07-03 15:49:39 -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 |
|
Joe Taylor
|
d6493a62fa
|
Merge branch 'integrate-77bit' of https://bitbucket.org/k1jt/wsjtx into integrate-77bit
|
2018-07-03 14:18:55 -04:00 |
|
Joe Taylor
|
854a7f2a5c
|
NewCode.txt describes some necessary code additions.
|
2018-07-03 14:17:49 -04:00 |
|
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
|
cf7a2eded5
|
Merge branch 'integrate-77bit' of bitbucket.org:k1jt/wsjtx into integrate-77bit
|
2018-07-03 09:50:25 -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 |
|
Joe Taylor
|
2c0286f301
|
Merge branch 'integrate-77bit' of https://bitbucket.org/k1jt/wsjtx into integrate-77bit
|
2018-07-03 10:40:18 -04:00 |
|
Joe Taylor
|
2963e8c19a
|
Add a m_config.bNoSpecial() function.
|
2018-07-03 10:38:50 -04:00 |
|
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 |
|
Joe Taylor
|
d6c0d1d878
|
Add a To Do list -- always subject to revision!
|
2018-07-03 08:26:16 -04:00 |
|
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
|
acb25dd13c
|
Merge in K1JT's 77bit message code.
|
2018-06-30 15:47:33 -05:00 |
|
Steve Franke
|
26de3219d3
|
Fix an off-by-one problem.
|
2018-06-30 14:56:19 -05:00 |
|
Joe Taylor
|
251b2c6ce9
|
Fix bugs for several more edge cases.
|
2018-06-29 20:11:24 -04:00 |
|
Joe Taylor
|
023b76400b
|
Add a few more test messages.
|
2018-06-29 13:36:05 -04:00 |
|
Joe Taylor
|
2da8f51fc2
|
Fix bugs for a few edge-case messages. Add some test files.
|
2018-06-29 12:02:29 -04:00 |
|
Joe Taylor
|
18a839963f
|
Change to 12-bit hash in msg type 4, to accommodate CQ calls.
|
2018-06-28 15:26:54 -04:00 |
|
Joe Taylor
|
190aef8a36
|
Add column headings for encode77.
|
2018-06-28 14:12:05 -04:00 |
|
Joe Taylor
|
5465abaa72
|
Make encode77 default to reading from "messages.txt".
|
2018-06-28 13:17:32 -04:00 |
|
Joe Taylor
|
4946d01edb
|
Put <...> around callsign recovered from hash table.
|
2018-06-28 13:07:01 -04:00 |
|
Joe Taylor
|
1d0ffcfdca
|
Change 24-bit hash to 22-bit hash.
|
2018-06-28 11:48:42 -04:00 |
|
Joe Taylor
|
0b8d2b620f
|
Rename a data file.
|
2018-06-27 20:33:17 -04:00 |
|
Joe Taylor
|
7a855f1fd5
|
Correct several minor bugs.
|
2018-06-27 20:19:48 -04:00 |
|
Joe Taylor
|
617b0bffc8
|
Nearly finished with pack77/unpack77.
|
2018-06-27 16:41:58 -04:00 |
|
Steve Franke
|
83d81bdcd2
|
Streamline the sequence detector code.
|
2018-06-27 15:11:39 -05:00 |
|
Joe Taylor
|
983cd3f31c
|
More additions to pack77/unpack77 routines.
|
2018-06-27 15:07:04 -04:00 |
|
Joe Taylor
|
c007b0f4cd
|
Add a file with wide variety of test cases for pack28/unpack28.
|
2018-06-27 11:23:27 -04:00 |
|
Joe Taylor
|
d4784ef7dc
|
More work on pack28/unpack28, and a test28 program.
|
2018-06-27 11:08:39 -04:00 |
|
Steve Franke
|
229ee09b99
|
Minor code cleanup.
|
2018-06-27 09:55:34 -05:00 |
|
Joe Taylor
|
12e0def237
|
Implement special tokens CQ, DE, QRZ, ... in pack28/unpack28.
|
2018-06-27 08:57:13 -04:00 |
|
Joe Taylor
|
acd6d5cab9
|
Fix some bugs for more varied example messages.
|
2018-06-26 21:00:53 -04:00 |
|
Joe Taylor
|
c75a270872
|
Finish decoding of Types 1 and 3 (except for rpt/RRR/RR73/73).
|
2018-06-26 16:47:16 -04:00 |
|
Joe Taylor
|
b0636b561b
|
Basic function for message Types 0.0-0.5 and Type 1.
|
2018-06-26 16:34:38 -04:00 |
|
Joe Taylor
|
9d5a2e6f5a
|
Through type 0.3.
|
2018-06-26 15:20:39 -04:00 |
|
Joe Taylor
|
9ccb96397d
|
source-encode/decode of 77-bit messages OK through type 0.3.
|
2018-06-26 15:13:15 -04:00 |
|
Joe Taylor
|
2006fde28c
|
Completed pack77/unpack77 through message Type 0.2. Still more to do!
|
2018-06-26 13:55:12 -04:00 |
|
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 |
|
Joe Taylor
|
0adcfc667f
|
Add files for source encoding and decoding of 77-bit messages.
|
2018-06-26 08:33:13 -04:00 |
|
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 |
|
Joe Taylor
|
bd5aec3f31
|
More tweaks to description of 77-bit message types.
|
2018-06-23 15:15:10 -04:00 |
|
Joe Taylor
|
539ec3d465
|
test
|
2018-06-23 12:15:47 -04:00 |
|
Joe Taylor
|
35b53766cb
|
Add info on 28-bit integers used for standard callsigns.
|
2018-06-23 11:54:40 -04:00 |
|
Joe Taylor
|
7266d407ff
|
Amended rules for 77-bit message types.
|
2018-06-22 16:36:14 -04:00 |
|
Steve Franke
|
0f5759270e
|
Added 2-symbol sequence detection for proof-of-concept tests.
|
2018-06-22 11:20:28 -05:00 |
|
Joe Taylor
|
2edcebef40
|
Further progress toward defining the 77-bit message types.
|
2018-06-21 15:38:08 -04:00 |
|
Joe Taylor
|
96f3fa5810
|
Add directory 77bit and its contents.
|
2018-06-21 10:51:19 -04:00 |
|
Joe Taylor
|
f8bb7f4477
|
Implement a valid scheme for computing S/N in JT4 mode.
|
2018-06-18 13:41:26 -04:00 |
|
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
|
2cdb164446
|
Move CRC13 creation into encode128_90.f90 and CRC checking into bpdecode128_90.f90.
|
2018-06-16 16:42:02 -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
|
c18338b83b
|
Fix the calculation of symbol error probability.
|
2018-06-16 09:03:32 -05:00 |
|
Steve Franke
|
6846964170
|
Add 'code b' - a better (128,90) code. Code b has irregular column weights - 80% weight 3 and 20% weight 4.
|
2018-06-14 15:38:58 -05:00 |
|
Joe Taylor
|
67b5c80e1a
|
Update the contest ideas.
|
2018-06-14 11:31:16 -04:00 |
|
Steve Franke
|
1aeaa1715b
|
Fix up ldpcsim144 for comparisons with ldpcsim128_90.
|
2018-06-14 09:59:49 -05:00 |
|
Steve Franke
|
5da3986f0a
|
More work on (128,90) code. ldpcsim128_90 works now.
|
2018-06-14 09:30:41 -05:00 |
|
Joe Taylor
|
0344c14f99
|
Add the white paper digi-contest.txt.
|
2018-06-14 10:14:30 -04:00 |
|
Steve Franke
|
3ac119fb99
|
Progress toward a working ldpc128_90 simulator. Compiles, but does not yet work.
|
2018-06-13 11:34:00 -05:00 |
|
Steve Franke
|
41920af89a
|
Add routines that will implement 77-bit messages for MSK144. Initial tests will use a (128,90) code.
|
2018-06-13 09:40:04 -05:00 |
|
Steve Franke
|
9b63fe6ac7
|
Fix a bug in ldpcsim144 so that nerrhisto.dat is calculated and printed.
|
2018-06-12 16:00:06 -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 |
|
Steve Franke
|
68beed88a7
|
Change to Gray bit to symbol mapping for (174,91) messages.
|
2018-06-08 16:21:21 -05:00 |
|
Steve Franke
|
a3d9cf8bcd
|
Fix a bug that could cause all log-likelihoods to be NaN in some cases.
|
2018-06-07 14:24:35 -05:00 |
|
Steve Franke
|
a0db6a8a08
|
Disable AP passes for type 2 frames, for now. Write some diagnostics to lun 81.
|
2018-06-07 11:40:25 -05:00 |
|
Steve Franke
|
b84602d059
|
Zero the apsymbols for type 2 frames, for now.
|
2018-06-06 11:28:44 -05:00 |
|
Steve Franke
|
a23e2b6f8b
|
Fix a bug that caused some second-decoding-attempt log-likelihoods to become NaN.
|
2018-06-06 11:21:00 -05:00 |
|
Steve Franke
|
badc639777
|
Fix a bug in sync8d.f90. Switching between Costas arrays should work now.
|
2018-06-06 10:59:49 -05:00 |
|
Steve Franke
|
48b60eab71
|
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 |
|
Steve Franke
|
772b1bd5fa
|
ft8sim can now generate old (174,87) or new (174,91) frames. Frame type is selected using the itype command line parameter.
|
2018-06-05 08:40:00 -05:00 |
|
Steve Franke
|
86a5ae6596
|
costasxcorr is a Gnu Octave script that calculates the cross correlation between Costas arrays.
|
2018-06-04 14:06:14 -05:00 |
|
Steve Franke
|
c4ee0a2b41
|
Replace all references to code a with references to code c.
|
2018-06-04 08:04:22 -05:00 |
|
Steve Franke
|
689711ff1f
|
Add definitions for a new and improved (174,91) code - called code c
|
2018-06-04 08:04:22 -05:00 |
|