中文说明：包括广义互相关函数GCC时延估计，详细画出了时域和频域的相关图，进行逐步线性回归，匹配追踪和正交匹配追踪，是机器学习的例程，PLS部分最小二乘工具箱。
English Description：
Including the generalized cross correlation function of GCC delay estimation, with painting the time domain and frequency domain correlation diagram for linear stepwise regression, matching pursuit and orthogonal matching pursuit, is machine learning routines, pls pls toolbox.