Nakamura, Yukinori (Nara Inst. of Science and Tech.), Kogiso, Kiminao (Nara Inst. of Science and Tech.), Sugimoto, Kenji (Nara Inst. of Science and Tech.)

Design of a Gain Switching Observer for Networked Control Systems under Random Delay

Scheduled for presentation during the Regular Session "Switched Systems II" (MoP01), Monday, July 24, 2006, 15:20−15:45, Room B2

17th International Symposium on Mathematical Theory of Networks and Systems, July 24-28, 2006, Kyoto, Japan

This information is tentative and subject to change. Compiled on April 23, 2024

Abstract

This paper proposes a design method of an observer for networked control systems with time-varying delay. The proposed observer has multiple observer gains. In each time step, a remote plant sends a packet with a time-stamp. When a local host receives this packet, its transmission delay is measured from the time-stamp and the observer selects gains to estimate the present plant state. The estimation error is then governed by a kind of switched system. By means of solving linear matrix inequalities, the observer is designed so that the stability of the error system is guaranteed even if the gains are switched randomly. Furthermore, the performance of the estimation is improved by using D-stability. Finally, a numerical simulation illustrates the effectiveness of the proposed observer.