超混沌Chen系统和Rsser系统的脉冲自适应异结构同步  

Impulsive Adaptive Synchronization for Hyperchaotic Chen System and Rsser System with Different Structures

作　　者：李东[1] 杜永霞[1] 邓良明[1] 杨媛媛[2] 

机构地区：[1]重庆大学数学与统计学院,重庆401331 [2]重庆大学物理学院,重庆401331

出　　处：《西南大学学报（自然科学版）》2013年第9期59-67,共9页Journal of Southwest University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(11202249)

摘　　要：基于脉冲微分方程的不变原理,研究了超混沌Chen系统和超混沌Rsser系统的异结构同步问题,设计了脉冲自适应控制器,得到了超混沌Chen系统和超混沌Rsser系统的脉冲自适应同步准则,运用数值仿真方法证实了所研究方法的可行性和有效性.实验进一步表明,脉冲自适应同步方法比自适应方法实现同步的时间要短.In this paper, the synchronization of hyperchaotic Chen system and hyperchaotic Rōsser system is investigated based on the invariance principle of impulsive differential equations, the impulsive adaptive feedback controller of the system is designed, and several sufficient conditions about synchronization of hy-perchaotic Chen system and hyperchaotic Rōsser system are established. Finally, numerical simulations are presented to demonstrate the effectiveness and feasibility of the proposed method. The results show that by using this method, the time for the realization of impulsive adaptive synchronization is shorter than using only adaptive synchronization.

关 键 词：超混沌Chen系统 超混沌Rōsser系统 自适应同步 脉冲同步 不变原理 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] O231[自动化与计算机技术—控制科学与工程]