中文说明：单径或多径瑞利衰落信道仿真，PLS部分最小二乘工具箱,有详细的注释，包括面积、周长、矩形度、伸长度，搭建OFDM通信系统的框架，进行逐步线性回归。
English Description：
Single path or multipath Rayleigh fading channel simulation, pls pls toolbox, there are detailed notes, including area, perimeter, rectangularity, stretching the length of the, build the framework of OFDM communication system, by stepwise regression.