中文说明：FIR 底通和带通滤波器和IIR 底通和带通滤波器，使用大量的有限元法求解偏微分方程，利用matlab GUI实现的串口编程例子，仿真效果非常好，使用高阶累积量对MPSK信号进行调制识别，验证可用。
English Description：
Fir at the end of pass and band-pass filter and IIR bottom pass and band-pass filter, using a large number of finite element method for solving partial differential equations, using Matlab GUI to realize the serial programming examples, simulation results very good, using high order cumulants of MPSK signals modulation recognition, verification is available.