Output feedback control of discrete-time systems in networked environments

Peng, Chen, Tian, Yu-Chu, & Yue, Dong (2011) Output feedback control of discrete-time systems in networked environments. IEEE Transactions on Systems, Man and Cybernetics, Part A : Systems & Humans, 41(1), pp. 185-190.

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This correspondence paper addresses the problem of output feedback stabilization of control systems in networked environments with quality-of-service (QoS) constraints. The problem is investigated in discrete-time state space using Lyapunov’s stability theory and the linear inequality matrix technique. A new discrete-time modeling approach is developed to describe a networked control system (NCS) with parameter uncertainties and nonideal network QoS. It integrates a network-induced delay, packet dropout, and other network behaviors into a unified framework. With this modeling, an improved stability condition, which is dependent on the lower and upper bounds of the equivalent network-induced delay, is established for the NCS with norm-bounded parameter uncertainties. It is further extended for the output feedback stabilization of the NCS with nonideal QoS. Numerical examples are given to demonstrate the main results of the theoretical development.

Impact and interest:

65 citations in Scopus
57 citations in Web of Science®
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ID Code: 38610
Item Type: Journal Article
Refereed: Yes
Additional URLs:
Keywords: Networked control systems, output feedback, maximum allowable equivalent delay bound, stabilization, Quality-of-Service (QoS)
DOI: 10.1109/TSMCA.2010.2055155
ISSN: 1083-4427
Subjects: Australian and New Zealand Standard Research Classification > MATHEMATICAL SCIENCES (010000) > APPLIED MATHEMATICS (010200) > Applied Mathematics not elsewhere classified (010299)
Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > COMPUTATION THEORY AND MATHEMATICS (080200) > Numerical Computation (080205)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Control Systems Robotics and Automation (090602)
Divisions: Past > Schools > Computer Science
Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2011 IEEE
Deposited On: 18 Nov 2010 00:07
Last Modified: 29 Feb 2012 14:26

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