2.5 實驗注意事項
2.5 Experiment Notes

1）做實驗之前要預習

1）To preview before the experiment.

2）愛護實驗設(shè)備

2）Be care of laboratory equipment.

附錄：

Appendix：

運用MATLAB實現(xiàn)最小二乘參數(shù)辨識程序

Program of LMS parameter identification in MATLAB

按表2.1實驗數(shù)據(jù)，利用最小二乘法原理確定a，b這兩個參數(shù)，MATLAB實現(xiàn)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：

計算結(jié)果如下（results of calculation）：

T=0.1088，ξ=9.1880，進一步可以求得系統(tǒng)特征根（then the roots of system will be obtained）：