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An LMI approach to networked control systems with data packet dropout and transmission delays

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4 Author(s)
Mei Yu ; Dept. of Mech. & Eng. Sci., Peking Univ., Beijing, China ; Long Wang ; Tianguang Chu ; Fei Hao

The problem of data packet dropout and transmission delays induced by communication channel in networked control systems (NCSs) in both continuous-time case and discrete-time case is studied in this paper. We model the NCSs with data packet dropout and delays as ordinary linear systems with input delays and this enables us to apply the rich theory of delay systems to analysis and design of such NCSs. For the continuous-time case, our technique is based on Lyapunov-Razumikhin function method. For the discrete-time case, we use the Lyapunov-Krasovskii based method. Attention is focused on the design of memoryless state feedback controllers that guarantee stability of the closed-loop systems. We present the admissible bounds of data packet loss and of delays in terms of linear matrix inequalities. Numerical examples illustrate the effectiveness of the proposed approach.

Published in:

Decision and Control, 2004. CDC. 43rd IEEE Conference on  (Volume:4 )

Date of Conference:

14-17 Dec. 2004