Journal
INTERNATIONAL JOURNAL OF GENERAL SYSTEMS
Volume 45, Issue 5, Pages 517-531Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/03081079.2015.1106737
Keywords
Output feedback control; quantization; missing measurements; Lyapunov-Krasovskii functional; linear matrix inequality
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Funding
- National Natural Science Foundation of China [61374010, 61074129, 61175111]
- Natural Science Foundation of Jiangsu Province of China [BK2012682]
- Qing Lan Project of Jiangsu Province
- 333 Project of Jiangsu Province
- Six Talents Peak Project of Jiangsu Province [DZXX-047]
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In this paper, we are concerned with the problem of analysis and synthesis for a class of output feedback control system. The system under consideration is a discrete-time stochastic system with time-varying delay. It is assumed that the measurement of system is quantized via a logarithmic quantizer before it is transmitted, and the measurement data would be missing from time to time which can be described by a Bernoulli distributed white sequence. In addition, the nonlinearities are assumed to satisfy the sector conditions. The problem addressed is to design an output feedback controller such that the resulting closed-loop system is exponentially stable in the mean square. By employing Lyapunov theory and some new techniques, a new framework is established to cope with the design of output feedback controller for nonlinear systems involving quantization and missing measurement. Sufficient conditions are derived to guarantee the existence of the desired controllers, and the controller parameters are given in an explicit expression as well. A numerical example is exploited to show the usefulness of the results obtained.
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