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recv: increase lookahead a bit

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Roman Zeyde
2014-10-23 18:06:08 +03:00
parent 59435e44a5
commit 9d754b04cf
1 changed files with 2 additions and 2 deletions
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4
amodem/recv.py
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@@ -141,7 +141,7 @@ class Receiver(object):
)
self.plt.figure()
self.plt.plot(np.arange(-lookahead, order), coeffs)
self.plt.plot(np.arange(order+lookahead), coeffs)
equalization_filter = dsp.FIR(h=coeffs)
equalized = list(equalization_filter(signal))
@@ -220,7 +220,7 @@ class Receiver(object):
freq_err = self._prefix(sampler, freq=freqs[0], gain=gain)
sampler.freq -= freq_err
filt = self._train(sampler, order=11, lookahead=5)
filt = self._train(sampler, order=11, lookahead=6)
sampler.equalizer = lambda x: list(filt(x))
bitstream = self._demodulate(sampler, freqs)