此程序用于计算一维信号倒频谱，并根据其倒频谱进行时域滤波，最后进行逆傅里叶变换，突出原始信号中的原始信号，消除传递路径的影响-This program is used to calculate one-dimensional signal spectrum, and according to its inverse spectrum in the time domain filtering, finally to inverse Fourier transform, highlight the original signal in the original signal, eliminate the influence of the transmission path