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Ignore band-edge and DC bins

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This commit is contained in:
Mike Walters 2016-07-30 14:55:28 +01:00
parent 2c76c5cbe3
commit 461e674f82
1 changed files with 8 additions and 2 deletions
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10
qspectrumanalyzer/backend.py
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@ -349,12 +349,18 @@ class HackRFSweepThread(RtlPowerBaseThread):
# Skip first run through in case it was incomplete
# otherwise the data_storage array sizes are setup incorrectly and mismatch later
if not self.skip:
sorted_data = sorted(zip(self.databuffer["x"], self.databuffer["y"]))
self.databuffer["x"], self.databuffer["y"] = [list(x) for x in zip(*sorted_data)]
self.data_storage.update(self.databuffer)
self.skip = False
self.databuffer = {"timestamp": [], "x": [], "y": []}
self.databuffer["x"] += [centre_freq + i * 20e6 / self.fft_size for i in range(int(-self.fft_size/2), int(self.fft_size/2))]
self.databuffer["y"] += [self.filter_nan(x) for x in data[1:]]
fft_size_eighth = int(self.fft_size / 8)
valid_bins = list(range(fft_size_eighth, fft_size_eighth * 3)) + list(range(fft_size_eighth * 5, fft_size_eighth * 7))
for i in valid_bins:
self.databuffer["x"].append(centre_freq + (i - self.fft_size/2) * 20e6 / self.fft_size)
self.databuffer["y"].append(self.filter_nan(data[1+i]))
self.prev_freq = centre_freq