drowe67 [Sun, 8 Apr 2018 02:17:07 +0000 (02:17 +0000)]
updated specs
git-svn-id: https://svn.code.sf.net/p/freetel/code@3452
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drowe67 [Sun, 8 Apr 2018 00:55:12 +0000 (00:55 +0000)]
added refinement stage, now syncing up quckly at high an dlow SNRs
git-svn-id: https://svn.code.sf.net/p/freetel/code@3451
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drowe67 [Sun, 8 Apr 2018 00:48:53 +0000 (00:48 +0000)]
added a specs section
git-svn-id: https://svn.code.sf.net/p/freetel/code@3450
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drowe67 [Sat, 7 Apr 2018 22:10:04 +0000 (22:10 +0000)]
first pass at UW based sync - works really well, gives positive lock/false lock indication, hangs on at rated 9% BER at 0dB AWGN and 4dB HF
git-svn-id: https://svn.code.sf.net/p/freetel/code@3449
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drowe67 [Sat, 7 Apr 2018 20:38:56 +0000 (20:38 +0000)]
progressing sync state machine, still can get locked up in false sync state
git-svn-id: https://svn.code.sf.net/p/freetel/code@3448
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drowe67 [Sat, 7 Apr 2018 20:38:06 +0000 (20:38 +0000)]
characterising freq offset estimation metrics
git-svn-id: https://svn.code.sf.net/p/freetel/code@3447
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drowe67 [Wed, 4 Apr 2018 23:55:33 +0000 (23:55 +0000)]
multipath perf not so great
git-svn-id: https://svn.code.sf.net/p/freetel/code@3446
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drowe67 [Wed, 4 Apr 2018 23:26:05 +0000 (23:26 +0000)]
first pass experiment to try alternate tone spacings, works quite well
git-svn-id: https://svn.code.sf.net/p/freetel/code@3445
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drowe67 [Sat, 31 Mar 2018 20:28:36 +0000 (20:28 +0000)]
working on different metrics for sync state machine - in particular recognising we have a false sync
git-svn-id: https://svn.code.sf.net/p/freetel/code@3444
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okcsampson [Sat, 31 Mar 2018 17:44:56 +0000 (17:44 +0000)]
Update carrier table generation
git-svn-id: https://svn.code.sf.net/p/freetel/code@3443
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drowe67 [Tue, 27 Mar 2018 23:04:48 +0000 (23:04 +0000)]
Thanks Matt - patch to disable editing of radio model in PTT dialog
git-svn-id: https://svn.code.sf.net/p/freetel/code@3442
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okcsampson [Mon, 26 Mar 2018 19:38:02 +0000 (19:38 +0000)]
Update Readme (50 Bd * 32 bits)
git-svn-id: https://svn.code.sf.net/p/freetel/code@3441
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drowe67 [Sun, 25 Mar 2018 21:44:05 +0000 (21:44 +0000)]
updated makefile for ofdm
git-svn-id: https://svn.code.sf.net/p/freetel/code@3440
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drowe67 [Sun, 25 Mar 2018 21:42:16 +0000 (21:42 +0000)]
edited state names
git-svn-id: https://svn.code.sf.net/p/freetel/code@3439
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drowe67 [Sun, 25 Mar 2018 21:40:17 +0000 (21:40 +0000)]
edited state names
git-svn-id: https://svn.code.sf.net/p/freetel/code@3438
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drowe67 [Sun, 25 Mar 2018 21:33:24 +0000 (21:33 +0000)]
first pass at README for OFDM modem
git-svn-id: https://svn.code.sf.net/p/freetel/code@3437
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drowe67 [Sun, 25 Mar 2018 20:10:11 +0000 (20:10 +0000)]
C and Octave both getting BER=0.16 @ Eb/No=4dB
git-svn-id: https://svn.code.sf.net/p/freetel/code@3436
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drowe67 [Sun, 25 Mar 2018 10:11:04 +0000 (10:11 +0000)]
first pass working ofdm demod cmd line program
git-svn-id: https://svn.code.sf.net/p/freetel/code@3435
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okcsampson [Sun, 25 Mar 2018 03:25:41 +0000 (03:25 +0000)]
Corrected some bugs I instigated
git-svn-id: https://svn.code.sf.net/p/freetel/code@3434
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drowe67 [Sat, 24 Mar 2018 23:25:37 +0000 (23:25 +0000)]
adjusted nin for wider ange required by acquisition, #define FILE_MODE working in tofdm
git-svn-id: https://svn.code.sf.net/p/freetel/code@3433
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drowe67 [Sat, 24 Mar 2018 22:25:52 +0000 (22:25 +0000)]
added acquisition function ofdm_search_sync to C and Octave and tofdm framewor, todsm passes
git-svn-id: https://svn.code.sf.net/p/freetel/code@3432
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drowe67 [Sat, 24 Mar 2018 03:46:54 +0000 (03:46 +0000)]
about to refactor ofdm_dev state machine to use timing_max as indication of modem frame sync
git-svn-id: https://svn.code.sf.net/p/freetel/code@3431
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drowe67 [Fri, 23 Mar 2018 21:57:26 +0000 (21:57 +0000)]
protect BER reset freedv_api calls when not running
git-svn-id: https://svn.code.sf.net/p/freetel/code@3430
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drowe67 [Fri, 23 Mar 2018 21:38:49 +0000 (21:38 +0000)]
reoved some phantom prints
git-svn-id: https://svn.code.sf.net/p/freetel/code@3429
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drowe67 [Fri, 23 Mar 2018 21:37:20 +0000 (21:37 +0000)]
removed phantom printfs
git-svn-id: https://svn.code.sf.net/p/freetel/code@3428
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drowe67 [Fri, 23 Mar 2018 21:03:07 +0000 (21:03 +0000)]
coarse timing with normalised max passes tofdm
git-svn-id: https://svn.code.sf.net/p/freetel/code@3427
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drowe67 [Fri, 23 Mar 2018 20:38:19 +0000 (20:38 +0000)]
un fix off by one bug - fix applied to tofdm.c instead to make identical
git-svn-id: https://svn.code.sf.net/p/freetel/code@3426
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drowe67 [Fri, 23 Mar 2018 20:29:48 +0000 (20:29 +0000)]
off by one bug
git-svn-id: https://svn.code.sf.net/p/freetel/code@3425
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drowe67 [Thu, 22 Mar 2018 07:11:41 +0000 (07:11 +0000)]
normalised correlation of coarse timing, to assist with initial sync at different rx levels
git-svn-id: https://svn.code.sf.net/p/freetel/code@3424
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drowe67 [Tue, 20 Mar 2018 22:57:49 +0000 (22:57 +0000)]
Octave compatable ofdm_get_test_bits.c, and a few minor omment tweaks
git-svn-id: https://svn.code.sf.net/p/freetel/code@3423
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drowe67 [Tue, 20 Mar 2018 22:09:12 +0000 (22:09 +0000)]
messing with script names in a namespace clashing attempt to line up with names of C equivalents
git-svn-id: https://svn.code.sf.net/p/freetel/code@3422
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drowe67 [Tue, 20 Mar 2018 08:56:00 +0000 (08:56 +0000)]
refactored ofdm rx a little, progressing towards better sync state machine
git-svn-id: https://svn.code.sf.net/p/freetel/code@3421
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drowe67 [Tue, 20 Mar 2018 08:54:47 +0000 (08:54 +0000)]
added an extra getter for bits per frame
git-svn-id: https://svn.code.sf.net/p/freetel/code@3420
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drowe67 [Tue, 20 Mar 2018 08:54:01 +0000 (08:54 +0000)]
first pass at ofdm_mod, command line OFDM modulator program
git-svn-id: https://svn.code.sf.net/p/freetel/code@3419
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drowe67 [Sun, 18 Mar 2018 20:53:26 +0000 (20:53 +0000)]
first pass Octave ofdm tx and rx file based test programs, just work on raw modem frames. Next step is code C equivalents
git-svn-id: https://svn.code.sf.net/p/freetel/code@3418
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drowe67 [Sun, 18 Mar 2018 20:33:03 +0000 (20:33 +0000)]
renamed a few internal variables
git-svn-id: https://svn.code.sf.net/p/freetel/code@3417
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drowe67 [Sun, 18 Mar 2018 20:14:20 +0000 (20:14 +0000)]
renamed, as about to build simpler ofdtm_tx and ofdem_rx to test OFDM mdoem only
git-svn-id: https://svn.code.sf.net/p/freetel/code@3416
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drowe67 [Sat, 17 Mar 2018 23:43:30 +0000 (23:43 +0000)]
added raw mode after diucssion with Mark
git-svn-id: https://svn.code.sf.net/p/freetel/code@3415
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drowe67 [Sat, 17 Mar 2018 23:05:53 +0000 (23:05 +0000)]
initial pass at horus API function
git-svn-id: https://svn.code.sf.net/p/freetel/code@3414
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drowe67 [Sat, 17 Mar 2018 21:01:11 +0000 (21:01 +0000)]
coarse freq estimator checks out between Octave and C - next step is build up an acquisition state machine
git-svn-id: https://svn.code.sf.net/p/freetel/code@3413
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drowe67 [Sat, 17 Mar 2018 20:11:20 +0000 (20:11 +0000)]
coded up C part of freq offset estimation, now to test and debug
git-svn-id: https://svn.code.sf.net/p/freetel/code@3412
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drowe67 [Sat, 17 Mar 2018 07:35:53 +0000 (07:35 +0000)]
nice efficient freq offset est alg, acceptable results when tested with histogra, now need tofdm UT and C port
git-svn-id: https://svn.code.sf.net/p/freetel/code@3411
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hobbes1069 [Wed, 14 Mar 2018 01:14:59 +0000 (01:14 +0000)]
Fix include location in BuildCodec2.cmake
git-svn-id: https://svn.code.sf.net/p/freetel/code@3410
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hobbes1069 [Mon, 12 Mar 2018 22:53:35 +0000 (22:53 +0000)]
Fix locating of codec2 version.h when building from svn checkout.
git-svn-id: https://svn.code.sf.net/p/freetel/code@3409
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drowe67 [Mon, 12 Mar 2018 20:58:07 +0000 (20:58 +0000)]
restored ofdm Octave/C code from last working rev 3387, tofdm passing ok
git-svn-id: https://svn.code.sf.net/p/freetel/code@3408
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drowe67 [Sun, 11 Mar 2018 21:57:00 +0000 (21:57 +0000)]
added usage notes
git-svn-id: https://svn.code.sf.net/p/freetel/code@3407
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drowe67 [Sat, 10 Mar 2018 04:04:41 +0000 (04:04 +0000)]
bringing horus RTTY demod back to life
git-svn-id: https://svn.code.sf.net/p/freetel/code@3406
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drowe67 [Tue, 6 Mar 2018 21:33:09 +0000 (21:33 +0000)]
added some cmd line options and examples, getting reas repatability across gqrx and cmd line methods
git-svn-id: https://svn.code.sf.net/p/freetel/code@3405
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drowe67 [Sun, 4 Mar 2018 19:01:27 +0000 (19:01 +0000)]
real time NF calculation script, giving sensible results with gqrx
git-svn-id: https://svn.code.sf.net/p/freetel/code@3404
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drowe67 [Tue, 27 Feb 2018 02:56:36 +0000 (02:56 +0000)]
wideband octave sim working again, tweaked interpolator functions
git-svn-id: https://svn.code.sf.net/p/freetel/code@3403
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drowe67 [Tue, 13 Feb 2018 20:39:46 +0000 (20:39 +0000)]
added some Gotchas in notes
git-svn-id: https://svn.code.sf.net/p/freetel/code@3402
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drowe67 [Tue, 13 Feb 2018 20:35:25 +0000 (20:35 +0000)]
avoid start up transients, plot time domain for inspection
git-svn-id: https://svn.code.sf.net/p/freetel/code@3401
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baobrien [Tue, 13 Feb 2018 08:05:15 +0000 (08:05 +0000)]
Testing and tuning C coarse ofdm acq
git-svn-id: https://svn.code.sf.net/p/freetel/code@3400
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baobrien [Sun, 11 Feb 2018 22:48:31 +0000 (22:48 +0000)]
Working demod with coarse frame sync in C; still need wide freq. estimation and octave back-port
git-svn-id: https://svn.code.sf.net/p/freetel/code@3399
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drowe67 [Sun, 11 Feb 2018 04:10:59 +0000 (04:10 +0000)]
cmakefile changes for fsk_mod_ext_vco
git-svn-id: https://svn.code.sf.net/p/freetel/code@3398
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drowe67 [Sun, 11 Feb 2018 03:18:22 +0000 (03:18 +0000)]
removed spurious exit()
git-svn-id: https://svn.code.sf.net/p/freetel/code@3397
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drowe67 [Sun, 11 Feb 2018 02:39:57 +0000 (02:39 +0000)]
legacy FSK tx MDS tests
git-svn-id: https://svn.code.sf.net/p/freetel/code@3396
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drowe67 [Tue, 6 Feb 2018 20:29:12 +0000 (20:29 +0000)]
fixed bug in numbers or bits read in
git-svn-id: https://svn.code.sf.net/p/freetel/code@3395
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drowe67 [Sat, 3 Feb 2018 19:43:52 +0000 (19:43 +0000)]
a little rewording
git-svn-id: https://svn.code.sf.net/p/freetel/code@3394
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drowe67 [Sat, 3 Feb 2018 09:02:37 +0000 (09:02 +0000)]
wrote fsk modulator that just generates levels for driving an external VCO
git-svn-id: https://svn.code.sf.net/p/freetel/code@3393
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baobrien [Tue, 23 Jan 2018 19:39:19 +0000 (19:39 +0000)]
Finally have my head on straight about how to go about ofdm timing/freq est
git-svn-id: https://svn.code.sf.net/p/freetel/code@3392
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baobrien [Sun, 21 Jan 2018 21:01:28 +0000 (21:01 +0000)]
Commiting current OFDM work; no major milestone hit;
git-svn-id: https://svn.code.sf.net/p/freetel/code@3391
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baobrien [Wed, 10 Jan 2018 22:32:41 +0000 (22:32 +0000)]
Deconstantized OFDM
git-svn-id: https://svn.code.sf.net/p/freetel/code@3390
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baobrien [Tue, 9 Jan 2018 06:50:49 +0000 (06:50 +0000)]
Work on removing constants from ofdm; cleaning up test framework
git-svn-id: https://svn.code.sf.net/p/freetel/code@3389
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drowe67 [Sat, 6 Jan 2018 04:04:09 +0000 (04:04 +0000)]
instructions for building on Windows machiens for Windows, thanks chibill
git-svn-id: https://svn.code.sf.net/p/freetel/code@3388
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baobrien [Wed, 3 Jan 2018 00:40:33 +0000 (00:40 +0000)]
Started kickoff work; Started refactoring to make OFDM configurable; started work on OFDM freq est
git-svn-id: https://svn.code.sf.net/p/freetel/code@3387
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drowe67 [Tue, 19 Dec 2017 19:35:16 +0000 (19:35 +0000)]
outputting results of test2
git-svn-id: https://svn.code.sf.net/p/freetel/code@3386
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drowe67 [Sun, 17 Dec 2017 20:59:58 +0000 (20:59 +0000)]
setting up 2nd test case for 2D search alg
git-svn-id: https://svn.code.sf.net/p/freetel/code@3385
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baobrien [Sat, 2 Dec 2017 22:16:27 +0000 (22:16 +0000)]
Fixed compiler warnings on cohpsk.c and freedv_api.c
git-svn-id: https://svn.code.sf.net/p/freetel/code@3384
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baobrien [Sat, 2 Dec 2017 06:33:09 +0000 (06:33 +0000)]
Commiting back changes made during flexradio update
-made freedv_comptx actually produce complex samples for 2400A
-added support for 24k sample rate changing to freedv api for 2400A
-added optional 'simple' freq. est. mode to cohpsk
-made some things in cohpsk faster
git-svn-id: https://svn.code.sf.net/p/freetel/code@3383
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drowe67 [Fri, 1 Dec 2017 22:25:03 +0000 (22:25 +0000)]
building up frame by frame simulation of 2D error measure for spectral VQ
git-svn-id: https://svn.code.sf.net/p/freetel/code@3382
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drowe67 [Thu, 16 Nov 2017 10:38:12 +0000 (10:38 +0000)]
oops forgot version.h.in, thanks Tomas
git-svn-id: https://svn.code.sf.net/p/freetel/code@3381
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drowe67 [Thu, 16 Nov 2017 00:58:13 +0000 (00:58 +0000)]
version.h patch, thanks Tomas
git-svn-id: https://svn.code.sf.net/p/freetel/code@3380
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baobrien [Tue, 3 Oct 2017 08:58:45 +0000 (08:58 +0000)]
Temporary fix for tdma compilitaion error
git-svn-id: https://svn.code.sf.net/p/freetel/code@3379
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baobrien [Thu, 28 Sep 2017 00:43:35 +0000 (00:43 +0000)]
Added master tx mode support; added multiple UW type support
git-svn-id: https://svn.code.sf.net/p/freetel/code@3378
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baobrien [Mon, 25 Sep 2017 04:35:28 +0000 (04:35 +0000)]
Made attempt at pilot sync system; failed; trying different first sync model
git-svn-id: https://svn.code.sf.net/p/freetel/code@3377
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baobrien [Sat, 23 Sep 2017 19:55:55 +0000 (19:55 +0000)]
Got TDMA synchronized TX tested
git-svn-id: https://svn.code.sf.net/p/freetel/code@3376
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baobrien [Sat, 23 Sep 2017 06:06:49 +0000 (06:06 +0000)]
First pass at TDMA TX; First on-air RX TDMA tests
git-svn-id: https://svn.code.sf.net/p/freetel/code@3375
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baobrien [Thu, 21 Sep 2017 19:06:24 +0000 (19:06 +0000)]
A tiny bit more work on TDMA
git-svn-id: https://svn.code.sf.net/p/freetel/code@3374
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baobrien [Thu, 21 Sep 2017 05:33:21 +0000 (05:33 +0000)]
Initial work on master timing slot sync working
git-svn-id: https://svn.code.sf.net/p/freetel/code@3373
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baobrien [Thu, 21 Sep 2017 04:27:36 +0000 (04:27 +0000)]
Tried TDMA double-demod for out of range RX; didn't work
git-svn-id: https://svn.code.sf.net/p/freetel/code@3372
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baobrien [Wed, 20 Sep 2017 11:35:52 +0000 (11:35 +0000)]
Further work on TDMA RX
git-svn-id: https://svn.code.sf.net/p/freetel/code@3371
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baobrien [Tue, 19 Sep 2017 06:22:05 +0000 (06:22 +0000)]
Frame following sync starting to work
git-svn-id: https://svn.code.sf.net/p/freetel/code@3370
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baobrien [Mon, 18 Sep 2017 17:15:22 +0000 (17:15 +0000)]
More TDMA work
git-svn-id: https://svn.code.sf.net/p/freetel/code@3369
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baobrien [Mon, 18 Sep 2017 05:06:16 +0000 (05:06 +0000)]
More work on TDMA; RX starting to come together
git-svn-id: https://svn.code.sf.net/p/freetel/code@3368
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baobrien [Sun, 17 Sep 2017 21:36:23 +0000 (21:36 +0000)]
Fix for segfault-on-NaN problem
git-svn-id: https://svn.code.sf.net/p/freetel/code@3367
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baobrien [Sun, 17 Sep 2017 18:09:41 +0000 (18:09 +0000)]
Pushed forward on TDMA RX
git-svn-id: https://svn.code.sf.net/p/freetel/code@3366
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baobrien [Wed, 13 Sep 2017 21:00:26 +0000 (21:00 +0000)]
A bit more work on TDMA;
fixed memory leak in generate_codebook.c to allow compiliation with asan
git-svn-id: https://svn.code.sf.net/p/freetel/code@3365
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drowe67 [Wed, 13 Sep 2017 03:10:36 +0000 (03:10 +0000)]
about to change to be constant length
git-svn-id: https://svn.code.sf.net/p/freetel/code@3364
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baobrien [Sun, 10 Sep 2017 20:59:47 +0000 (20:59 +0000)]
First pass at adding 'burst' mode to TDMA; currently only disables timing offset compensation
git-svn-id: https://svn.code.sf.net/p/freetel/code@3363
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drowe67 [Sat, 9 Sep 2017 04:20:37 +0000 (04:20 +0000)]
first pass at indep amp and gain estimation for each formant
git-svn-id: https://svn.code.sf.net/p/freetel/code@3362
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baobrien [Thu, 7 Sep 2017 09:04:03 +0000 (09:04 +0000)]
A bit more TDMA work; preparing to add 'burst' mode to FSK
git-svn-id: https://svn.code.sf.net/p/freetel/code@3361
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baobrien [Thu, 7 Sep 2017 03:32:15 +0000 (03:32 +0000)]
Began sketching out TDMA pilot RX path
git-svn-id: https://svn.code.sf.net/p/freetel/code@3360
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baobrien [Tue, 5 Sep 2017 19:38:56 +0000 (19:38 +0000)]
More work on TDMA; Remembered to add tdma.c
git-svn-id: https://svn.code.sf.net/p/freetel/code@3359
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baobrien [Tue, 5 Sep 2017 08:09:07 +0000 (08:09 +0000)]
A small bit of work on TDMA
git-svn-id: https://svn.code.sf.net/p/freetel/code@3358
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drowe67 [Tue, 5 Sep 2017 00:22:13 +0000 (00:22 +0000)]
Gnome software indexing comment line, thanks Maitland
git-svn-id: https://svn.code.sf.net/p/freetel/code@3357
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baobrien [Fri, 1 Sep 2017 01:21:54 +0000 (01:21 +0000)]
More work on TDMA
git-svn-id: https://svn.code.sf.net/p/freetel/code@3356
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drowe67 [Mon, 28 Aug 2017 23:41:53 +0000 (23:41 +0000)]
first pass at constructing VQs on teh fly with individual amps
git-svn-id: https://svn.code.sf.net/p/freetel/code@3355
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drowe67 [Wed, 16 Aug 2017 00:14:27 +0000 (00:14 +0000)]
starting to combine split VQs and explore gain combinations
git-svn-id: https://svn.code.sf.net/p/freetel/code@3354
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drowe67 [Sun, 13 Aug 2017 04:00:15 +0000 (04:00 +0000)]
investigated and fixed a bug in Hilbert Transform based phase synthesis, hts1a quite good with phase0, even after dec by 4
git-svn-id: https://svn.code.sf.net/p/freetel/code@3353
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