- Title
- Mean-square stabilizability via output feedback for a non-minimum phase networked feedback system
- Creator
- Lu, Jieying; Su, Weizhou; Wu, Yilin; Fu, Minyue; Chen, Jie
- Relation
- Automatica Vol. 105, Issue July 2019, p. 142-148
- Publisher Link
- http://dx.doi.org/10.1016/j.automatica.2019.03.001
- Publisher
- Elsevier
- Resource Type
- journal article
- Date
- 2019
- Description
- This work studies mean-square stabilizability via output feedback for a networked linear time invariant (LTI) feedback system with a non-minimum phase plant. In the feedback system, the control signals are transmitted to the plant over a set of parallel communication channels with possible packet dropout. Our goal is to analytically describe intrinsic constraints among channel packet dropout probabilities and the plant's characteristics in the mean-square stabilizability of the system. It turns out that this is a very hard problem. Here, we focus on the case in which the plant has relative degree one and each non-minimum zero of the plant is only associated with one of control input channels. Then, the admissible region of packet dropout probabilities in the mean-square stabilizability of the system is obtained. Moreover, a set of hyper-rectangles in this region is presented in terms of the plant's non-minimum phase zeros, unstable poles and Wonham decomposition forms which is related to the structure of controllable subspace of the plant. A numerical example is presented to illustrate the fundamental constraints in the mean-square stabilizability of the networked system.
- Subject
- networked control system; output feedback; mean-square stabilization; non-minimum phase zero
- Identifier
- http://hdl.handle.net/1959.13/1470815
- Identifier
- uon:48563
- Identifier
- ISSN:0005-1098
- Language
- eng
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