基于特征函数的张量分解相关代码，结合“lm”，“als”等很多算法。 主要用于处理欠定MIMO系统识别-Based on the characteristic function of the tensor decomposition of the relevant code, combined with the " lm" , " als" and many other algorithms. Mainly used for underdetermined

Channel Estimation for Millimeter Wave MIMO-OFDM Systems via Low-Rank Tensor Decomposition