Description: FFT algorithm, import data txt file FFT is performed, and the required spectrum superposition shown in Fig. 2D and 3D
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File list (Check if you may need any files):
fft code\fft_test.m
........\p1_fft.m
........\p1_plot.m
........\p1_test.m
........\p2_fft.m
........\p2_plot.m
fft code