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pinlv668
- 仿真不同频率的组合信号通过滤波器后作FFT，得到滤波后信号的fft频谱及fft求模，并找出最大值及索引，非常实用。。(The combination of different frequency signal through the filter FFT was obtained after filtering FFT spectrum and FFT signal for mold, and find out the maximum value and index, very practica