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Zbl 1146.93317
Martinez-Guerra, Rafael; Yu, Wen
Chaotic synchronization and secure communication via sliding-mode observer. (English)
[J] Int. J. Bifurcation Chaos Appl. Sci. Eng. 18, No. 1, 235-243 (2008). ISSN 0218-1274

Summary: Information signal embedded in a chaotic transmitter can be recovered by a receiver if it is a replica of the transmitter. In this paper, a new aspect of chaotic communication is introduced. A sliding-mode observer replaces the conventional chaotic system at the receiver side, which does not need information from the transmitter. So the uncertainties in the transmitter and the transmission line do not affect the synchronization, the proposed communication scheme is robust with respect to some disturbances and uncertainties. Three chaotic systems, Duffing equation, Van der Pol oscillator and Chua's circuit, are provided to illustrate the effectiveness of the chaotic communication.

MSC 2000:: *93B12 Variable structure systems
37D45 Strange attractors, chaotic dynamics
37N35 Dynamical systems in control
94A05 Communication theory
93B35 Sensitivity (robustness) of control systems

Keywords: synchronization; chaotic communication; sliding mode observer

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