一类随机非线性时变滞系统的输出反馈自适应控制  

Output-feedback adaptive control for a class of stochastic nonlinear time varying delay systems

作　　者：高庆争[1] 陈传祥[1] 解学军[2] 

机构地区：[1]济宁学院物理系,山东济宁273155 [2]曲阜师范大学自动化研究所,山东曲阜273165

出　　处：《山东大学学报（工学版）》2007年第5期11-18,共8页Journal of Shandong University（Engineering Science）

基　　金：教育部新世纪优秀人才支持计划基金项目(NCET-05-0607);国家自然科学基金项目(60774010)

摘　　要：针对随机噪声具有未知协方差的一类随机非线性时变滞系统,研究了输出反馈自适应控制问题.利用反推设计技术,构造性的给出了一个基于观测器的控制器和仅与输出相关的自适应律,保证了闭环系统是概率意义下全局渐近稳定的,所设计的观测器和自适应控制器是不依赖于时滞的.仿真例子验证了该控制方案的有效性.The output-feedback adaptive control problem was investigated for a class of stochastic nonlinear time varying delay systems driven by stochastic noise of unknown covariance. By utilizing the backstepping de- sign technique, acontroller based on observer and the adaptive law only correlated with output was constructive- ly presented to guarantee that the closed-loop system is globally asymptotically stable in probability, where the designed observer and adaptive controller are all independent of time-delay. A simulation example demonstrates the effectiveness of the control scheme.

关 键 词：随机非线性时变滞系统 反推 输出反馈镇定 概率意义下全局渐近稳定 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]