23 lines
602 B
Matlab
23 lines
602 B
Matlab
% ofdm_time_sync.m
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% David Rowe June 2019
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%
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% Tests ofdm modem sync time, using real, off air files
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function ofdm_time_sync(filename, Ntrials=10)
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time_to_sync = []; passes = fails = 0;
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for toffset=0:Ntrials-1
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atime = ofdm_ldpc_rx(filename, mode="700D", interleave_frames = 1, "", start_secs=toffset, len_secs=5);
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if atime != -1
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passes++;
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time_to_sync = [time_to_sync atime];
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else
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fails++;
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end
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end
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printf("pass: %d fails: %d mean: %3.2f var %3.2f\n", passes, fails, mean(time_to_sync), var(time_to_sync));
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figure(1); clf; plot(time_to_sync);
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endfunction
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