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【 题 名 】一类非线性系统的自适应时延观测器设计(Adaptive time。delay observer design for
a class of nonlinear systems)
【 作 者 】 向睁蝶,朱瑞军,胡维礼(南京理工大学自动化系,江苏南京;大连理工大学自动化系,辽宁大连)
【 刊 名 】《控制理论与应用》2003,20(2).277-279
【 关键词 】 非线性系统;差分方法;延迟测量;状态观测器;滑模
【中文文摘】 利用输出差分及滑模方法研究一类非线性系统的自适应时延状态观测器设计问题.首先将系统输出的微分及高阶微分用输出和其延迟测量值的差商来表示,然后在此基础上构造了一种时延状态观测器,估计误差的影响可由滑模项来消除.在系统满足线性参数化的条件下给出了一种自适应时延状态观测器设计.最后给出仿真研究说明设计方法的有效性.
【英文文摘】 An adaptive time-delay observer(ATDO)techonique has benn proposed for a class if system including unknown constrants by combing difference approach with sliding mode.Firstly,the differential and its higher-order differential of the output are the presented by the difference quotients between the output and the delayed measurement,adn the novel time-delay observer is presented by using the estimation of nonlinear function ,then an adaptive time-delay observer(ATD0) is established under the assumption of the linear-parametersrization.for the proposed observers the convergence property has been analysed.Finally,simulation result are given to demostrate the effectiveness of the proposed observers.

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