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The Scientific World Journal
Volume 2014, Article ID 405396, 5 pages
http://dx.doi.org/10.1155/2014/405396
Research Article

Study on Chaotic Fault Tolerant Synchronization Control Based on Adaptive Observer

Software College, Northeastern University, Shenyang 110819, China

Received 21 March 2014; Accepted 30 April 2014; Published 18 May 2014

Academic Editor: Yi Pan

Copyright © 2014 Dongming Chen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Aiming at the abrupt faults of the chaotic system, an adaptive observer is proposed to trace the states of the master system. The sufficient conditions for synchronization of such chaotic systems are also derived. Then the feasibility and effectiveness of the proposed method are illustrated via numerical simulations of chaotic Chen system. Finally, the proposed synchronization schemes are applied to secure communication system successfully. The experimental results demonstrate that the employed observer can manage real-time fault diagnosis and parameter identification as well as states tracing of the master system, and so the synchronization of master system and slave system is achieved.