引用本文:王银河,戴冠中.一类基于模糊逻辑系统的非线性不确定系统自适应观测器设计[J].控制理论与应用,2003,20(4):612~614.[点击复制]
WANG Yin-he,DAI Guan-zhong.Adaptive observer design for a class of nonlinear uncertain systems based on fuzzy logic systems[J].Control Theory and Technology,2003,20(4):612~614.[点击复制]
一类基于模糊逻辑系统的非线性不确定系统自适应观测器设计
Adaptive observer design for a class of nonlinear uncertain systems based on fuzzy logic systems
摘要点击 1158  全文点击 1046  投稿时间:2001-09-13  修订日期:2002-11-11
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DOI编号  10.7641/j.issn.1000-8152.2003.4.029
  2003,20(4):612-614
中文关键词  状态观测器  模糊逻辑系统  自适应律  一致终极有界
英文关键词  state observer  fuzzy logic system  adaptive law  UUB
基金项目  国家重点基础研究发展规划项目(G1998030471); 汕头大学科学研究启动经费(130-511010)资助项目.
作者单位E-mail
王银河 汕头大学 理学院, 广东 汕头 515063 yhwang@stu.edu.cn 
戴冠中 西北工业大学 自动控制系, 陕西 西安 710072  
中文摘要
      利用模糊逻辑系统具有充分利用专家语言信息和逼近连续函数的性质, 分析和研究了一类具有未知不确定界的非线性系统的自适应状态观测器设计问题. 观测器和自适应律的构成直接利用了系统的数学结构信息和模糊逻辑系统对不确定性的输出信息, 在较弱的假设条件下, 这种观测器与被控系统状态间的误差及各参数估计误差一致终极有界. 最后的仿真实例说明了所采用的方法的有效性.
英文摘要
      By employing fuzzy logic system with the properties of fully utilizing linguistic information from experts and approximating any continuous function with arbitrariness, the adaptive laws and state observers were synthesized for a class of nonlinear systems with uncertainties, the bounded functions of which were unknown. The architecture of laws and observers depended directly on the information from the construction of the systems controlled and the fuzzy logic system. Under some simple conditions, the laws and state observers made the state error of systems controlled and parameter estimate errors uniformly ultimately bounded (UUB). Finally, the simulation shows the validity of the method.