Observer design and interval estimation of time-delay discrete-time linear systems with external disturbance and measurement noise

被引：0
|
作者：
Yang, Junqi [1 ]
Xie, Jianhao [1 ]
Liu, Feiyang [1 ]
机构：
[1] Henan Polytech Univ, Sch Elect Engn & Automat, Henan Key Lab Intelligent Detect & Control Coal Mi, Jiaozuo 454003, Henan, Peoples R China
来源：
CONTROL THEORY AND TECHNOLOGY | 2024年 / 22卷 / 01期
关键词：
Interval estimation; Time-delay system; Observer design; Reachability analysis; STATE ESTIMATION;
D O I：
10.1007/s11768-023-00179-2
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
For a class of time-delay discrete-time linear systems with external disturbance and measurement noise, the interval estimation problems of state and measurement noise are investigated in this paper. First, the system state together with the time-delay term and measurement noise is augmented as a new state, and a singular system is then constructed. Subsequently, a kind of decoupling technique is employed to eliminate the effect of external disturbance, and an observer is designed to simultaneously estimate the system state and measurement noise. Based on the estimated state and measurement noise, the interval estimations of system state and measurement noise are obtained by reachability analysis technique. Finally, the effectiveness of the proposed method is verified by a four-tank liquid level system.
引用
收藏
页码：69 / 80
页数：12
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