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1878 Commits

Author SHA1 Message Date
Steve Franke 0fef707118 Widen candidate frequency offset window to f0=[10,4990] Hz. 2019-03-21 13:27:10 -05:00
Joe Taylor 0ea485b305 Bring allsim up to date with changes elsewhere. 2019-03-13 11:35:47 -04:00
Joe Taylor e150d003d6 Fix an inforrect constant in ft4_rx() that skipped over first 0.208 s of Rx data. 2019-03-13 10:31:23 -04:00
Steve Franke 7a0823301a Remove some temporary code. 2019-03-09 10:03:01 -06:00
Steve Franke 8ddf3f8acc Change default to DT=0.14 s for simulated wav files. 2019-03-09 09:13:26 -06:00
Steve Franke 1b591e2c8c Make ft4d work with cqstr. 2019-03-04 17:26:24 -06:00
Steve Franke d7012267c0 CQ message type strings are now passed from mainwindow.cpp to ft4_decode.f90, to enable AP decoding of special CQ messages. 2019-03-04 17:10:57 -06:00
Steve Franke 4769bf45d2 Make FT4 AP decoding work in RTTY RU and Field Day activities. 
Move Nuttal window to standalone subroutine nuttal_window.f90 and
use Nuttal window in ft4/getcandidates4.f90.
 2019-03-03 13:02:22 -06:00
K9AN 3176c1d3ef wsprd Makefile now builds wsprsim too. 2019-03-01 17:48:57 -06:00
K9AN 4d5fa21821 More tweaks to wsprd Makefile. 2019-03-01 17:07:11 -06:00
K9AN 9ff9dc5c42 Make wsprd Makefile work on Linux with gcc/gfortran. 2019-03-01 14:36:26 -06:00
Joe Taylor 5c7e1ba35d Complete the code cleanup in ft4sim. 2019-02-27 09:38:59 -05:00
Joe Taylor 1c617e2367 Minor code cleanup to ft4sim.f90 and ft4sim_mult.f90. 2019-02-27 09:34:40 -05:00
Bill Somerville 278c544a6a Merge branch 'develop' into feat-ft2 2019-02-26 11:52:14 +00:00
Steve Franke fdca7c2dcb Merge branch 'feat-ft2' of bitbucket.org:k1jt/wsjtx into feat-ft2 2019-02-25 15:03:55 -06:00
Steve Franke 3759198982 Remove ramp-up and ramp-down symbols. Instead, shape the first 1/8th of first and last real symbols. 2019-02-25 15:03:43 -06:00
Joe Taylor fdfb655b06 Option to select "Low sidelobes" or "Most sensitive" for waterfall spectra. 2019-02-25 15:04:05 -05:00
Steve Franke ec2d5b6233 Fix the sign of one of the Nuttal window coefficients. Change BT to 2.0. 2019-02-25 12:57:34 -06:00
Steve Franke 17ac99344c 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. 2019-02-23 14:18:22 -06:00
Steve Franke 5d914a1eb1 Make ft8sim_gfsk work with recent changes to gen_ft8wave.f90. 2019-02-22 15:16:29 -06:00
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 9425bd4d37 Merge branch 'feat-ft2' of bitbucket.org:k1jt/wsjtx into feat-ft2 2019-02-21 15:48:08 -06:00
Steve Franke 1acb5d5d99 Add routines needed to test FT8 with GFSK pulses. 2019-02-21 15:48:02 -06:00
Joe Taylor d5a1671210 FT4 decoding interval is now 288 ms. Saving of FT4 files is somewhat rationalized. 2019-02-21 10:08:18 -05:00
Joe Taylor a98e1d7f37 Minor code cleanup. 2019-02-15 09:55:27 -05:00
Joe Taylor 41c22b0153 Call fftwf_cleanup() from four2a to free all remaining fftw memory. 2019-02-15 09:38:28 -05:00
Joe Taylor 3c77b720f8 Account for buffer start time in ft4d. 2019-02-15 09:06:41 -05:00
Joe Taylor e5ea814bb9 Destroy FFTW plans when ft4d is finished. 2019-02-15 08:59:41 -05:00
Steve Franke 6c8a204d7e Make sure that message77 is initialized. 2019-02-14 18:54:14 -06:00
Steve Franke 473c7058ff Merge branch 'feat-ft2' of bitbucket.org:k1jt/wsjtx into feat-ft2 2019-02-14 17:37:48 -06:00
Steve Franke 6ad6d44ffa When doing block detection of symbols, fill in incomplete blocks using 
data from shorter block sizes.
 2019-02-14 17:34:46 -06:00
Joe Taylor e4ba9f25fd Process one more 3456-sample chunk in ft4d. 2019-02-14 15:21:01 -05:00
Joe Taylor 55e0e32e59 Fix ft4d so that it reads and processed full 15-second files. 2019-02-14 15:10:41 -05:00
Joe Taylor 9a6c82d09b Tweaks to make valgrind somewhat happier. 2019-02-14 14:56:02 -05:00
Joe Taylor 073a22125a Minor cleanup: debugging a problem with FT4 decoding. 2019-02-14 14:09:22 -05:00
Joe Taylor c2cb55a68a Reduce FT4 chunk size fro 500 to 288 ms; suppress duplicate decodes from close to chunk ends. 2019-02-13 14:42:57 -05:00
Bill Somerville 7d66f442d6 Fix up some compiler errors when using gfortran v9 2019-02-10 20:43:51 +00:00
Steve Franke 186482811a Use 91 bits for RR73 messages. 2019-02-09 16:08:39 -06:00
Steve Franke b415faae20 Remove char(0) from mycall and hiscall. 2019-02-08 16:44:18 -06:00
Steve Franke 0f03d02e74 Merge branch 'feat-ft2' of bitbucket.org:k1jt/wsjtx into feat-ft2 2019-02-08 15:17:52 -06:00
Steve Franke 33498cc10f Disable AP if ncontest=5 or 6 (Fox and Hound). 2019-02-08 15:17:46 -06:00
Steven Franke 7d70c5e9e1 Still trying to make data_dir work under all conditions. This makes it work with ft4d. 2019-02-08 11:24:22 -06:00
Steve Franke e3830dcb27 Remove temporary indent file. 2019-02-07 18:52:51 -06:00
Steve Franke cbfcb76193 AP decoding basically works. Make data_dir setting work on the Mac. 2019-02-07 18:48:38 -06:00
Steve Franke ecbeda5297 Disable sync2 calculation for now. 2019-02-07 10:16:28 -06:00
Steve Franke 60cb4a33aa Re-enable second sync pass. 2019-02-05 19:53:53 -06:00
Steve Franke 71cb6d9f50 Use 4 different Costas arrays to prevent false syncs as received frames move 
through the analysis window.

Add a random 77-bit vector to each message so that tone transitions occur
even if the message contains a long string of 0 or 1 (like a CQ).

Add alternative sync calculation as an option (sync2), for testing.

Add basic framework for AP decoding.
 2019-02-05 19:18:50 -06:00
Steve Franke 91e3dbdf20 New scheme for finding candidates. Speed up sync. Improved SNR calibration. 2019-02-02 16:29:17 -06:00
Steve Franke 40fd3f6551 Make writing to data_dir work on the Mac. 2019-02-02 11:04:11 -06:00