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| import numpy as np | |
| import matplotlib.pyplot as plt | |
| with open('samples.bin', 'rb') as f: | |
| raw_data = np.fromfile(f, dtype=np.uint8) | |
| iq_data = raw_data.astype(np.float32) - 127.5 | |
| iq_data /= 127.5 | |
| i_data = iq_data[0::2] | |
| q_data = iq_data[1::2] | |
| complex_data = i_data + 1j * q_data | |
| plt.figure() | |
| plt.magnitude_spectrum(complex_data, Fs=2.048e6, scale='dB') | |
| plt.title('Magnitude Spectrum') | |
| plt.show() | |
| plt.figure() | |
| plt.plot(i_data[:1000], label='I') | |
| plt.plot(q_data[:1000], label='Q') | |
| plt.title('Time-Domain Signal') | |
| plt.legend() | |
| plt.show() |
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