Journal
APPLIED MATHEMATICAL MODELLING
Volume 35, Issue 6, Pages 3080-3091Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.apm.2010.12.020
Keywords
Chaos; Finite-time control; Nonsingular terminal sliding mode; Unknown parameter
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In this paper, the problem of finite-time chaos synchronization between two different chaotic systems with fully unknown parameters is investigated. First, a new nonsingular terminal sliding surface is introduced and its finite-time convergence to the zero equilibrium is proved. Then, appropriate adaptive laws are derived to tackle the unknown parameters of the systems. Afterwards, based on the adaptive laws and finite-time control idea, an adaptive sliding mode controller is proposed to ensure the occurrence of the sliding motion in a given finite time. It is mathematically proved that the introduced sliding mode technique has finite-time convergence and stability in both reaching and sliding mode phases. Finally, some numerical simulations are presented to demonstrate the applicability and effectiveness of the proposed technique. (C) 2010 Elsevier Inc. All rights reserved.
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