利用调制函数法的模糊模型参数辨识  

Parameter Identification of Fuzzy Model Using Modulating Function Method

作　　者：金宗华[1] 郑赞益 李远昌 姜根泽 

机构地区：[1]华东理工大学信息学院,上海200237 [2]釜庆大学电子系

出　　处：《控制工程》2009年第2期207-210,共4页Control Engineering of China

基　　金：韩国科学财团基金资助项目(200708030725)

摘　　要：利用调制函数法辨识非线性连续系统的模糊模型参数。系统的动力学微分方程存在微分项,通过输入输出数据辨识模糊模型参数时不能忽略扰动的影响,因此辨识模糊模型参数比较困难。利用调制函数法可以消除微分项,通过无微分项的联立方程的求解容易进行模糊模型参数辨识。几个非线性连续系统的仿真实验验证了所设计的利用调制函数法的模糊模型参数辨识的正确性和有效性。The problemof parameter identification of the fuzzy model in nonlinear continuous system is discussed by using modulating function method. It is difficult to identify the parameters of the fuzzy model using input-output data because of the differential equations of dynamics with differential terms which result in the noise. The differential terms can be removed by using modulating function, then the parameters of fuzzy model can be easily identified from the simultaneous equations without differential terms. The simulation of nonlinear continuous system shows that the applied modulating function is very precise and effective in parameter identification of fuzzy models.

关 键 词：模糊模型 参数辨识 调制函数 非线性连续系统 

分 类 号：TP27[自动化与计算机技术—检测技术与自动化装置]