中文说明：为了巩固已学的数理统计中关于最小二乘估计方法的知识，本文讲将介绍一个以正弦信号参数估计为例的问题，并使用MATLAB来实现的过程
English Description：
In order to consolidate the statistical knowledge about the method of least squares estimation, this talk will present a case study of parameter estimation for sinusoidal signals problem, and implemented using MATLAB process