2.5 实验注意事项
2.5 Experiment Notes

1）做实验之前要预习

1）To preview before the experiment.

2）爱护实验设备

2）Be care of laboratory equipment.

附录：

Appendix：

运用MATLAB实现最小二乘参数辨识程序

Program of LMS parameter identification in MATLAB

按表2.1实验数据，利用最小二乘法原理确定a，b这两个参数，MATLAB实现程序如下：

According to table 2.1，use Least Mean Square algorithm to identify the parameters of a and b，the program in MATLAB is shown as following：

计算结果如下（results of calculation）：

T=0.1088，ξ=9.1880，进一步可以求得系统特征根（then the roots of system will be obtained）：