说明：  基于Matlab的MIMO通信系统仿真。MIMO：发送端和接收端同时使用多天线来抑制信道衰落，从而大幅度地提高信道容量、抗衰落性能和频谱利用率。基本要求。2*2 STBC的实现关于分集增益的分析 弹性要求与一发多收系统的比较（最大比合并）：分集增益、信噪比损失多个天线（>2）STBC实现（例如4*4）
(Matlab simulation of the MIMO communication system. MIMO: sending and receiving ends simultaneously using multiple antennas to suppress channel fading, thereby greatly improve the channel capacity, resistance to fading and spectrum utilization. Basic requirements. 2* 2 STBC achieve diversity gain analysis of Flexible system requirements and got overcharged comparison (maximum ratio combining): diversity gain, SNR loss multiple antennas (> 2) STBC achieve (for example, 4* 4)... )