航空学报 > 1998, Vol. 19 Issue (5): 608-611

基于模糊系统的径向高斯网络的自适应状态观测器

闻新1, 张洪钺1, 周露2   

  1. 1. 北京航空航天大学自动控制系301 教研室, 北京, 100083;2. 北京师范大学数学系, 北京, 100875
  • 收稿日期:1997-12-01 修回日期:1997-12-01 出版日期:1998-10-25 发布日期:1998-10-25

ADAPTIVE OBSERVER BASED ON RADIAL BASIS FUNCTION OF FUZZY SYSTEMS

Wen Xin1, Zhang Hongyue1, Zhou Lu2   

  1. 1. Faculty 301, Beijing University of Aeronautics and Astronautics,Beijing,100083;2. Beijing Normal University,Beijing,100875
  • Received:1997-12-01 Revised:1997-12-01 Online:1998-10-25 Published:1998-10-25

摘要:

利用模糊系统的径向高斯函数网络对一类非线性时变系统的状态进行了估计。给出了一种递阶自组织在线学习算法,提出了非线性时变系统的自适应状态观测器,并对其结构及特征进行了讨论,仿真结果表明这种自适应状态观测器能很好地观测系统的状态。

关键词: 状态估计, 模糊神经网络, 高斯函数, 非线性系统-时间相关

Abstract:

Radial Gaussian function networks based on fuzzy systems is applied to the state estimation of nonlinear time varying systems. A hierarchically structural self organizing learning method is given, and a state estimation method is proposed. The structure and characteristics of the observer are discussed. The results of estimation show that the proposed nonlinear state observer can observe real systems state satisfactorily.

Key words: sta te estimation, fuzzy neur al networ ks, Gaussian function, nonlinear syst em-time dependence

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