Global adaptive output feedback control of nonlinear time-delay systems with measurement uncertainty  

作　　者：Weiguo Cai Xianglei Jia Xinxu Ju 

机构地区：[1]School of Automation,Hangzhou Dianzi University,Hangzhou,310018,Zhejiang,China

出　　处：《Control Theory and Technology》2025年第1期145-152,共8页控制理论与技术(英文版)

基　　金：supported by the Zhejiang Provincial Natural Science Foundation(LY24F030011,LY23F030005);the National Natural Science Foundation of China(62373131).

摘　　要：In this paper,a pair of dynamic high-gain observer and output feedback controller is proposed for nonlinear systems with multiple unknown time delays.By constructing Lyapunov-Krasovskii functionals,it shows that global state asymptotic regulation can be ensured by introducing a single dynamic gain;furthermore,global asymptotic stabilization can be achieved by choosing a sufficiently large static scaling gain when the upper bounds of all system parameters are known.Especially,the output coefficient is allowed to be non-differentiable with unknown upper bound.This paper proposes a generalized Lyapunov matrix inequality based dynamic-gain scaling method,which significantly simplifies the design computational complexity by comparing with the classic backstepping method.

关 键 词：Output feedback Measurement uncertainty Nonlinear adaptive control Time delays 

分 类 号：O17[理学—数学]