中文说明：考虑雨衰 阴影 和多径影响，验证可用，FIR 底通和带通滤波器和IIR 底通和带通滤波器，对于初学matlab的同学会有帮助，三相光伏逆变并网的仿真，包含优化类的几个简单示例程序。
English Description：
Considering the rain attenuation shadowing and multipath effect, verify available, at the bottom of the fir pass and band-pass filter and IIR bottom pass and band-pass filter, for the beginner will help students in MATLAB, simulation of three-phase photovoltaic grid connected inverter, including optimization of several simple example program.