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Robust output feedback stabilization for discrete-time systems with time-varying input delay

Lookup NU author(s): Dr Jie ZhangORCiD, Xiaoying Sun



This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


In this paper a robust output feedback stabilization method is proposed for discrete-time systems subject to time-varying input delay. By introducing an augmented state, the robust stabilization problem is converted into that of a delay-free system. Using the Artstein's reduction method and the scaled bounded real lemma, sufficient conditions for robust stability are established via matrix inequalities, by which the output feedback controller can be derived. A tuning parameter is introduced to efficiently solve these matrix inequalities, therefore facilitating the improvement of control performance. An illustrative example is used to show the effectiveness and merit of the proposed method.

Publication metadata

Author(s): Hao S, Liu T, Zhang J, Sun X, Zhong C

Publication type: Article

Publication status: Published

Journal: Systems Science & Control Engineering: An Open Access Journal

Year: 2015

Volume: 3

Issue: 1

Pages: 300-306

Online publication date: 12/02/2015

Acceptance date: 09/02/2015

Date deposited: 15/04/2015

ISSN (electronic): 2164-2583

Publisher: Taylor & Francis


DOI: 10.1080/21642583.2015.1018556


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