分支发射分集方案，2根发射天线、1根接收天线，最高信噪比为12dB，即仿真范围为0dB到12dB-Branch transmit diversity scheme, two transmit antennas, a receiving antenna, the maximum SNR is 12dB, the range for the simulation i.e. 0dB to 12dB

这个例子展示了如何用波束形成来模拟点对点MIMO-OFDM系统。多输入多输出（MIMO）组合和正交频分复用（OFDM）技术已在最近的无线标准的采用，如802.11X，提供更高的数据传输速率。由于MIMO采用天线阵，波束形成可以提高接收信噪比，进而降低误码率。(This examples shows how to model a point-to-point MIMO-OFDM system with beamforming. The combination of multiple-input-m

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.)