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fix handling 1d constellation

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Roman Zeyde
2014-08-29 18:35:13 +03:00
parent 11952c9803
commit 5725a31cf6
1 changed files with 4 additions and 2 deletions
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6
amodem/dsp.py
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@@ -83,8 +83,10 @@ class QAM(object):
reals = np.array(list(sorted(set(symbols.real))))
imags = np.array(list(sorted(set(symbols.imag))))
self.real_factor = 1.0 / np.mean(np.diff(reals))
self.imag_factor = 1.0 / np.mean(np.diff(imags))
_mean = lambda u: float(sum(u))/len(u) if len(u) else 1.0
self.real_factor = 1.0 / _mean(np.diff(reals))
self.imag_factor = 1.0 / _mean(np.diff(imags))
self.bias = reals[0] + 1j * imags[0]
self.symbols_map = {}