1、搭建2×2，4 × 4MIMO 任一路的信道符合Rayleigh Fading 2、利用估计的信道分别进行MLD、Zero-forcing、MMSE信号检测 3、比较三种检测方式的BER performance及运行时间- 1, building 2* 2, 4* 4 mimo all channels conform to Rayleigh Fading 2,using the estimated channel for MLD, Zero-forcing, M