文献类型：期刊文献

英文题名：Adaptive output feedback quantised tracking control for stochastic nonstrict-feedback nonlinear systems with input saturation

作者：Yang, Yekai[1];Yu, Zhaoxu[1];Li, Shugang[2]

机构：[1]East China Univ Sci & Technol, Minist Educ, Key Lab Adv Control & Optimizat Chem Proc, Shanghai, Peoples R China;[2]Shanghai Univ, Dept Informat Management, Shanghai, Peoples R China

年份：2018

卷号：49

期号：15

起止页码：3130

外文期刊名：INTERNATIONAL JOURNAL OF SYSTEMS SCIENCE

收录：;EI(收录号：20184305971467);WOS:【SCI-EXPANDED(收录号:WOS:000451416400010)】；

基金：This work is partially supported by the Chinese National Natural Science Foundation [grant number 71871135], and Shanghai Pujiang Program [grant number 15PJC049], and Fundamental Research Funds for the Central Universities [grant numbers 222201714055 and 222201717006].

语种：英文

外文关键词：Stochastic nonlinear systems; adaptive control; output feedback; quantisation; input saturation

摘要：This paper is concerned with the problem of adaptive output feedback quantised tracking control for a class of stochastic nonstrict-feedback nonlinear systems with asymmetric input saturation. Especially, both input and output signals are quantised by two sector-bounded quantisers. In order to solve the technical difficulties originating from asymmetric saturation nonlinearities and sector-bounded quantisation errors, some special technique, approximation-based methods and Gaussian error function-based continuous differentiable model are exploited. Meanwhile, an observer including the quantised input and output signals is designed to estimate the states. Then, a novel output feedback adaptive quantised control scheme is proposed to ensure that all signals in the closed-loop system are 4-moment (2-moment) semi-globally uniformly ultimately bounded while the output signal follows a desired reference signal. Finally, the effectiveness and applicability of the design methodology is illustrated with two simulation examples.