LS（Least Square，最小二乘法）算法是信道估计算法中最基本的算法之一。在MIMO-OFDM系统中，经常选择LS算法或其改进算法对信道进行估计。利用LS算法设计信道估计器，算法结构简单易于实现，且估计器不需要知道信道中各个收发天线对之间的自相关矩阵和噪声。-LS (further Square, Least Square) algorithm is one of the most basic algorithm of channel estimation algorithm. In M

采用偏最小二乘法，包括广义互相关函数GCC时延估计，微分方程组数值解方法。- Partial least squares method, Including the generalized cross-correlation function GCC time delay estimation, Numerical solution of differential equations method.