最小二乘算法，系统辨识用，用来辨识非线性系统的参数，还可以对非线性系统进行仿真。-System identification, used to identify nonlinear system parameters, it can also nonlinear system simulation.

最小二乘辨识参数，用来辨识非线性系统的参数，还可以对非线性系统进行仿真。-Least squares identification parameters, used to identify nonlinear system parameters, it can also nonlinear system simulation.

内含心电信号数据及运用MATLAB写的源代码，预报误差法参数辨识-松弛的思想，最小二乘回归分析算法。- ECG data and includes source code written in MATLAB, Prediction Error Method for Parameter Identification- the idea of relaxation, Least-squares regression analysis algorithm.