中文说明：本代码主要MIMO系统常见的几种天线选择算法：最优选择，天线子集选择，快速接收天线选择，收发天线联合选择算法。并且实现了各种天线选择算法效果的对比，对以后从事天线选择研究有很大的帮助。
English Description：
This code mainly MIMO system common antenna selection algorithm: optimal selection, antenna subset selection, fast receive antenna selection, receive and receive antenna joint selection algorithm. And the comparison of various antenna selection algorithms is realized, which is of great help for future antenna selection research.