Adaptive synchronization between different hyperchaotic systems with fully uncertain parameters

被引：54
作者：
Jian Huang [1 ]
机构：
[1] Jiangxi Univ Finance & Econ, Sch Informat Management, Nanchang 330013, Jiangxi, Peoples R China
来源：
PHYSICS LETTERS A | 2008年 / 372卷 / 27-28期
基金：
中国国家自然科学基金;
关键词：
hyperchaotic system; chaos synchronization; adaptive control; parameter update laws;
D O I：
10.1016/j.physleta.2008.05.025
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Adaptive method is an effective way to synchronize different hyperchaotic systems. This work investigates the chaos synchronization between different hyperchaotic systems with fully unknown parameters, i.e., the synchronizations between Lorenz-Stenflo (LS) system and a novel dynamical system named CYQY system, and between LS system and hyperchaotic Chen system. Based on the Lyapunov stability theory, two new adaptive controllers with corresponding parameter update laws are designed. such that the different hyperchaotic systems can be synchronized asymptotically. Numerical simulations are presented to demonstrate the effectiveness of the proposed adaptive controllers. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：4799 / 4804
页数：6
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