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diff --git a/README_cohpsk.md b/README_cohpsk.md new file mode 100644 index 0000000..aafc71d --- /dev/null +++ b/README_cohpsk.md @@ -0,0 +1,43 @@ +# README_cohpsk.md + +## Introduction + +## Quickstart + +1. BER test in AWGN channel with just less that 2% average bit error rate: + + ``` + $ ./cohpsk_get_test_bits - 5600 | ./cohpsk_mod - - | ./ch - - --No -30 --Fs 7500 | ./cohpsk_demod - - | ./cohpsk_put_test_bits - + <snip> + SNR3k(dB): 3.41 C/No: 38.2 PAPR: 8.1 + BER: 0.017 Nbits: 5264 Nerrors: 92 + + ``` + +2. Plot some of the demod internal states, used to chase down freq offset problemL + + ``` + $ cd build_linux/src + $ ./cohpsk_get_test_bits - 5600 | ./cohpsk_mod - - | ./ch - - --No -40 -f -20 --Fs 7500 | ./cohpsk_demod -o cohpsk_demod.txt - - | ./cohpsk_put_test_bits - + $ cd ../../octave + $ octave --no-gui + $ cohpsk_demod_plot("../build_linux/src/cohpsk_demod.txt") + ``` + +3. Run Octave<-> tests + + ``` + $ cd ~/codec2/build_linux/unittest + $ ./tochpsk + $ cd ~/codec2/octave + $ octave --no-gui + octave> tcohpsk + ``` + +## References + +## C Code + +## Octave Scripts + + |