中文说明：自己编写，matlab下的STBC-SM系统物理层仿真程序，最后得到误码率随信噪比曲线，并把数据保存为mat文件。程序中仿真信噪比、蒙特卡洛仿真次数、调制方式可变。接收端解调方式为ML最优解调，接收天线和发送天线数都为4.
English Description：
I have written, STBC-SM under the MATLAB system physical layer simulation program, and finally get the bit error rate with the signal to noise ratio curve, and the data saved as mat file. Simulation signal to noise ratio, Monte Carlo simulation times, and modulation method. The receiver demodulation method is ML optimal demodulation, the number of receiving antenna and transmitting antenna are 4