Title
Krein-space based robust H∞ fault estimation for two-dimensional uncertain linear discrete time-varying systems
Abstract
In this study, the robust H∞ fault estimation problem for two-dimensional linear time-varying systems with norm-bounded unknown input, measurement noise, and time-varying process uncertainty is investigated. By introducing an equivalent auxiliary system and a new certain indefinite quadratic form performance function, the system uncertainty can be appropriately considered into the new performance function and the fault estimator design is converted to the minimization problem of a quadratic form. Based on the partially equivalence property between the deterministic quadratic form problem and the Krein space estimation theory, the two-dimensional H∞ fault estimation problem can be solved via signal deconvolution in Krein space. Through employing projection operation and Riccati-like difference equation in two dimensions, both the recursive form fault estimator and the explicit condition for existence of the estimator are derived. One Darboux equation example is provided to illustrate the effectiveness of the proposed fault estimator.
Year
DOI
Venue
2018
10.1016/j.sysconle.2018.03.005
Systems & Control Letters
Keywords
Field
DocType
Two-dimensional systems,Fault estimation,Krein space,Uncertain systems,Time-varying systems
Differential equation,Applied mathematics,Quadratic form,Control theory,Deconvolution,Equivalence (measure theory),Discrete time and continuous time,Estimation theory,Mathematics,Recursion,Estimator
Journal
Volume
ISSN
Citations 
115
0167-6911
6
PageRank 
References 
Authors
0.45
18
4
Name
Order
Citations
PageRank
dong zhao19512.68
Steven X. Ding21792124.79
Youqing Wang322025.81
Yueyang Li412412.98