一个MIMO系统，发射方采用空时网格码编码，信道为锐利衰落，接收端已知信道情况。程序很详细，对做毕设的很有帮助。-A MIMO system, the launch party use of space-time trellis coding, channel for the sharp decline of the receiving end of known channel case. Procedures in great detail, the complete set of very