一类非线性系统的单尺度小波框架网络自适应观测器  

A Single-Scaling Wavelet Frame Network Based Adaptive Observerfor a Class of Nonlinear Systems

作　　者：魏荣[1] 王行愚[1] 

机构地区：[1]华东理工大学信息学院,上海200237

出　　处：《电子学报》2004年第7期1127-1130,共4页Acta Electronica Sinica

摘　　要：本文提出了一类MIMO非线性系统的小波网络自适应观测器设计方法 ,可对一类非线性未知或具有不确定性的非仿射系统进行状态估计 .文中给出了小波网络参数的在线自适应调节律 ,从理论上分析了观测器增益矩阵的选择对状态估计误差的影响 .根据Lyapunov理论证明了整个自适应观测器的稳定性 。This paper proposed a new method of designing a single scaling wavelet frame network based adaptive observer for a class of MIMO nonlinear systems,which can estimate the states of a class of non affine systems with uncertainties or unknown nonlinearities.The wavelet network weights are tuned on line,with no off line learning required.The robustifying term in the observer can reduce the error brought by the wavelet network approximation greatly.The overall adaptive scheme is shown to be uniformly ultimately bounded.Simulation results have verified the performce of the observer proposed.

关 键 词：非线性系统 单尺度小波框架 自适应 状态观测器 参数估计 

分 类 号：TP27[自动化与计算机技术—检测技术与自动化装置]