24 lines
586 B
Python
24 lines
586 B
Python
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#!/usr/bin/env python3
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import sys
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import numpy as np
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import matplotlib.pyplot as pp
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with open(sys.argv[1], 'rb') as infile:
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header = infile.read(4)
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if header != b'CPX_':
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print(f"Error: not a complex signal file. Format {header} not implemented yet.")
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exit(1)
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T = np.fromfile(infile, dtype=np.float32, count=1)
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data = np.fromfile(infile, dtype=np.complex64)
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t = np.arange(0, T*data.size, T)
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pp.plot(t, np.real(data), 'r-')
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pp.plot(t, np.imag(data), 'b-')
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pp.legend(['In-phase', 'Quadrature'])
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pp.xlabel('Time [s]')
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pp.show()
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