mimo系统结合空时编码时仿真查程序，得到误码率(Mimo system combined with space-time code and the simulation program, get the bit error rate)

在MATLAB上实现2发1收的空时分组码仿真,绘画信噪比与噪声曲线(On MATLAB, we realize the simulation of 2 time and 1 receive space-time block code, and the SNR and noise curve of the painting.)