基于DFT码本的波束方向图生成代码，通俗易懂(DFT based beam pattern generation code, easy to understand)

给出了DFT码本的构造方法以及SVD分解获取最佳预编码，接收端使用MMSE(The construction method of DFT codebook and SVD decomposition are given to obtain the best precoding. The receiving end uses MMSE.)