Journal of Zhejiang University SCIENCE
(ISSN 1009-3095, Monthly)
2003   Vol. 4   No. 4   p.437-440

Control uncertain continuous-time chaotic dynamical system

QI Dong-lian(Æ붬Á«)(Electrical Engineering College, Zhejiang University, Hangzhou 310027, China)
ZHAO Guang-zhou(ÕÔ¹âÖæ)(Electrical Engineering College, Zhejiang University, Hangzhou 310027, China)

Abstract:The new chaos control method presented in this paper is useful for taking advantage of chaos. Based on sliding mode control theory, this paper provides a switching manifold controlling strategy of chaotic system, and also gives a kind of adaptive parameters estimated method to estimate the unknown systems' parameters by which chaotic dynamical system can be synchronized. Taking the Lorenz system as example, and with the help of this controlling strategy, we can synchronize chaotic systems with unknown parameters and different initial conditions.
Keywords:Chaotic dynamical system, Sliding mode control, Synchronization

CLC Number:TP273 Document ID:A

Foundation Item:Project supported by Doctoral Subject Research Fund of Ministry of Education of China(1999033512)and Science and Technology Plan Fund of Zhe-jiang Province(991110412)
Author Resume:QI Dong-lian(Æ붬Á«),E-mail: ldq0924@china.com.cn

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Manuscript Received:2002 June 4

Manuscript Revised:2002 Nov. 8

Published:2003 Aug. 30