中文说明：伪谱法地震波正演程序，MATLAB编写，可以实现伪谱法的在正演模拟。正演模拟中经常会用到有限差分的方法，但是有限差分的频散问题严重，增大差分次数大大降低了运算的效率，伪谱法很好的解决了这个问题。
English Description：
Pseudo spectrum seismic wave forward program, written by MATLAB, can realize the forward simulation of pseudo spectrum method. Finite difference method is often used in forward modeling, but the frequency dispersion problem of finite difference is serious. Increasing the number of difference greatly reduces the efficiency of operation. Pseudospectral method can solve this problem well.