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fix lts index

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This commit is contained in:
Jinghao Shi 2017-04-07 16:50:16 -04:00
parent 20279b42a4
commit c4c81b2766
1 changed files with 4 additions and 3 deletions
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7
scripts/decode.py
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@ -460,10 +460,11 @@ class Decoder(object):
Returns the index of the first sample of STS Returns the index of the first sample of STS
None if no packet was detected. None if no packet was detected.
""" """
lts = LONG_PREAMBLE[64:64+64]
peaks = np.array([abs(c) for c in np.convolve( peaks = np.array([abs(c) for c in np.convolve(
samples, LONG_PREAMBLE[32:96], mode='same')]).argsort()[-2:] samples, lts, mode='same')]).argsort()[-2:]
if (max(peaks) - min(peaks) == 64) and (min(peaks) - 64 - 160) > 0: if (max(peaks) - min(peaks) == 64) and (min(peaks) - 33 - 160) > 0:
return min(peaks) - 64 - 160 return min(peaks) - 33 - 160
else: else:
return None return None