S变换时频域滤波是一种二维的时间域—频率域的分析方法，此程序通过对信号进行时频域转换，通过分析干扰信号的时间与频率的分布范围，设计相应的滤波器进行滤波可以有效的去除干扰，又因为S变换的是无损的可逆的因此对信号没有损伤。(S transform time domain filtering is a two-dimensional time domain - frequency domain analysis method. By analyzing the time and frequency domain of the signal, by analyzing the distribution range of the time and frequency of the interference signal, the corresponding filter can be designed to remove the interference effectively, and because the S transform is nondestructive and reversible. There is no damage to the signal.)