利用matlab实现简易的MIMO系统仿真，其中包括AWGN信道和瑞利信道的2发2收有无信道编码的比较，以及1发2收。-Using matlab to achieve a simple MIMO system simulation, including the relatively AWGN channel and Rayleigh channel of the two 2 admission with or without channel coding, as well as a 2 admi