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Research Article
High-gain observer for chaotic synchronization and secure communication
Article first published online: 9 FEB 2005
DOI: 10.1002/dac.720
Copyright © 2005 John Wiley & Sons, Ltd.
1099-1131/asset/cover.gif?v=1&s=6803fd5765ad45fe5d94eb628e0c9b9deb3b4fe8 "International Journal of Communication Systems")
Additional Information
How to Cite
Yu, W. (2005), High-gain observer for chaotic synchronization and secure communication. Int. J. Commun. Syst., 18: 487–500. doi: 10.1002/dac.720
Publication History
- Issue published online: 27 MAY 2005
- Article first published online: 9 FEB 2005
- Manuscript Accepted: 12 DEC 2004
- Manuscript Revised: 9 DEC 2004
- Manuscript Received: 12 FEB 2004
- Abstract
- References
- Cited By
Keywords:
- synchronization;
- chaotic communication;
- observer
Abstract
An information signal can be embedded in a transmitter which produces a chaotic signal, it is inviable to the observer who has no knowledge about the transmitter, but it can be recovered if the receiver is a replica of the chaotic transmitter. In this paper, a new aspect of the chaotic communication is introduced. A high-gain observer at the receiver's end replaces the conventional chaotic system. A single parameter is adjusted so that the receiver and transmitter can be synchronized. Three chaotic systems, Duffing equation, Van der Pol oscillator and Chua's circuit, are provided to illustrate the effectiveness of the chaotic communication. Copyright © 2005 John Wiley & Sons, Ltd.