中文说明：
2发射天线和2接收天线组成的MIMO系统在瑞利信道条件下采用16QAM调制，通过ZF、MMSE、ZF-SIC、MMSE-SIC等检测方法得到的误码率性能比较。
English Description：
The MIMO system composed of two transmit antennas and two receive antennas adopts 16QAM modulation in Rayleigh channel, and the BER performance of ZF, MMSE, zf-sic, mmse-sic detection methods is compared.