Steve Franke
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be72461142
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FT4: Some groundwork for subtraction.
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2019-04-18 14:15:24 -05:00 |
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Steve Franke
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f296e37630
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Fix a bug that didn't show up when I compiled on the Mac.
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2019-04-12 18:54:33 -05:00 |
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Steve Franke
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cd8ea16f40
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FT8: Use GFSK waveform with BT=4.0 as reference for subtraction, for now. May want to change to BT=2.0 before v2.1 release?
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2019-04-12 17:11:26 -05:00 |
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Bill Somerville
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278c544a6a
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Merge branch 'develop' into feat-ft2
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2019-02-26 11:52:14 +00:00 |
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Steve Franke
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3759198982
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Remove ramp-up and ramp-down symbols. Instead, shape the first 1/8th of first and last real symbols.
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2019-02-25 15:03:43 -06:00 |
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Steve Franke
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ec2d5b6233
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Fix the sign of one of the Nuttal window coefficients. Change BT to 2.0.
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2019-02-25 12:57:34 -06:00 |
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Steve Franke
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17ac99344c
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For now, change to BT=1.5 for FT8. This commit enables the waterfall analysis window. This decreases sidelobes significantly in exchange for increased noise bandwidth. Sensitivity to weak tones will be degraded somewhat.
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2019-02-23 14:18:22 -06:00 |
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Steve Franke
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5d914a1eb1
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Make ft8sim_gfsk work with recent changes to gen_ft8wave.f90.
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2019-02-22 15:16:29 -06:00 |
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Joe Taylor
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25bfa3798a
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Transmit FT8 using a gaussian-filtered waveform.
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2019-02-22 13:39:39 -05:00 |
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Steve Franke
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d9c99601ae
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Fix bugs in gen_ft8wave.f90.
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2019-02-21 15:56:21 -06:00 |
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Steve Franke
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1acb5d5d99
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Add routines needed to test FT8 with GFSK pulses.
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2019-02-21 15:48:02 -06:00 |
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Bill Somerville
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7d66f442d6
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Fix up some compiler errors when using gfortran v9
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2019-02-10 20:43:51 +00:00 |
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Steve Franke
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c52f755afc
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Make Watterson simulator causal.
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2019-01-25 16:26:13 -06:00 |
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Bill Somerville
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aee9c09851
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Merge branch 'develop' into feat-ft2
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2019-01-16 20:44:44 +00:00 |
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Steve Franke
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8f1baae048
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If delay=0.0 make Watterson use only a single component to simulate flat fading.
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2019-01-13 09:25:30 -06:00 |
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Steve Franke
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c4d078f55f
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Remove unnecessary character string space-padding.
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2019-01-03 14:02:17 -06:00 |
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Steve Franke
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1a8ddad307
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In ft8apset, mycall and dxcall must be at least 3 characters long, otherwise they are treated as non-existent.
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2018-12-24 11:19:07 -06:00 |
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Steve Franke
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b44d7b472d
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Fix a typo.
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2018-12-24 10:49:40 -06:00 |
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Steve Franke
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318ce0020e
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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.
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2018-12-24 10:45:02 -06:00 |
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Steve Franke
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5034e21291
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Remove some diagnostic writes.
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2018-12-21 09:51:39 -06:00 |
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Steve Franke
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7a40bf2e4b
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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.
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2018-12-20 15:08:29 -06:00 |
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Steve Franke
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307948a25d
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Remove an unused array.
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2018-12-16 11:55:36 -06:00 |
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Steve Franke
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dfceef3662
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Fix up ft8sim so that it prints a warning when SNR is set too high so that data will be clipped.
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2018-12-07 11:10:25 -06:00 |
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Steve Franke
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337bae6d0d
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Housekeeping. Remove unused code and unused variables. Silence some compiler warnings.
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2018-12-05 16:06:33 -06:00 |
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Steve Franke
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a5e82ac94c
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Delete an unused routine. Fix a typo in a comment.
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2018-12-04 20:01:55 -06:00 |
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Steve Franke
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6fc27d550d
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Fix an egregious bug and another not-so-egregious bug. The egregious bug prevented decodes of most signals with negative DT.
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2018-12-03 07:18:52 -06:00 |
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Steve Franke
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df37d9b1f7
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Remove cqhund stuff and some other unused code.
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2018-11-30 13:46:54 -06:00 |
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Joe Taylor
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461b87f047
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Minor improvement in code that checks for bad FT8 messages.
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2018-11-27 15:34:01 -05:00 |
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Joe Taylor
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9e74125799
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Don't allow an illegal message to crash routine genft8().
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2018-11-27 15:26:24 -05:00 |
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Steve Franke
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ab34db7556
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Get rid of unused variable ldecode77.
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2018-11-05 14:40:55 -06:00 |
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Joe Taylor
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0235cf69ff
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Remove all vestiges of old (isync=1) FT8 mode. Many changes here!
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2018-11-05 11:59:48 -05:00 |
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Steve Franke
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2b48cc4487
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Update wsprd README and delete an obsolete program.
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2018-10-31 21:02:46 -05:00 |
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Steve Franke
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87b97039b6
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Remove a small bias in Watterson channel simulator channel amplitude.
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2018-10-25 16:39:17 -05:00 |
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Steve Franke
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17ed242878
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Minor tweak - make program name the same as file name.
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2018-10-19 19:45:38 -05:00 |
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Steve Franke
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d0f0d420a9
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Convert ft8sim.f90 to use 77bit messages. Remove ft8sim2.f90.
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2018-10-19 16:52:00 -05:00 |
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Steve Franke
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fffa692ac5
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Convert ft8code to 77bit messages.
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2018-10-19 16:36:32 -05:00 |
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Steve Franke
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59278b9b6b
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Tweak ndeep determination.
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2018-10-10 16:06:53 -05:00 |
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Steve Franke
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4b54873c81
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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.
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2018-10-04 17:48:55 -05:00 |
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Steve Franke
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0b3b050221
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First cut at AP decoding for all values of ncontest.
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2018-10-04 17:48:23 -05:00 |
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Steve Franke
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876f69b1d7
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Remove some debug print statements.
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2018-10-04 17:47:52 -05:00 |
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Steve Franke
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b993935494
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Reconfigure foxgen.f90 for 77bit messages. Fox now transmits only 77bit messages.
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2018-10-04 17:47:36 -05:00 |
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Steve Franke
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b5cc35e430
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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.
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2018-10-04 17:45:15 -05:00 |
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Steve Franke
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77bb49e9ac
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Beginnings of AP for RU. Not working yet.
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2018-10-04 17:44:34 -05:00 |
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Joe Taylor
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6cecef42aa
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Restore a missing call to unpack77().
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2018-10-04 16:09:02 -04:00 |
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Steve Franke
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d9cf9bed3c
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Better handling of decodes with unhashed callsigns.
(cherry picked from commit 3b783a083e)
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2018-09-28 17:07:28 -05:00 |
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Steve Franke
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13b5cc479b
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Fix and re-enable polyfit SNR.
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2018-09-26 08:29:01 -05:00 |
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Steve Franke
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669d54197d
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Polynomial-fit SNR is still not right. Disable it again, for now.
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2018-09-24 19:36:30 -05:00 |
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Steve Franke
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591de66a31
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Fix up SNR calculation so that it reverts to SJF SNR when polyfit SNR is not sane.
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2018-09-24 19:04:34 -05:00 |
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Steve Franke
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9075fef228
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Revert to Steve's SNR estimator, for now.
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2018-09-24 17:40:14 -05:00 |
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Steve Franke
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332a3f1561
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Calibrate noise-baseline-fit based SNR estimate for FT8 v2 and print those estimates with decodes.
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2018-09-23 13:03:20 -05:00 |
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