diff options
Diffstat (limited to 'async_fm_demod.py')
| -rw-r--r-- | async_fm_demod.py | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/async_fm_demod.py b/async_fm_demod.py index d2289e4..8b4aa9e 100644 --- a/async_fm_demod.py +++ b/async_fm_demod.py @@ -17,6 +17,10 @@ async def streaming(): samples = np.array(samples).astype('complex64') samples = signal.decimate(samples, int(1.2e6 / 200e3)) samples = np.angle(samples[1:] * np.conj(samples[:-1])) + + x = np.exp(-1 / (200e3 * 75e-6)) + samples = signal.lfilter([1-x], [1,-x], samples) + samples = signal.decimate(samples, int(200e3 / 50e3)) samples *= 10000 |