摘要
研究了基于非线性控制的超混沌Chen系统的混沌同步问题.基于Lyapunov稳定性理论,设计了非线性控制器,改进了Jiang和Huang等设计的同步误差系统的Lyapunov函数形式,理论证明了超混沌Chen系统的自同步和超混沌Chen系统与超混沌Rssler系统的异结构同步.数值模拟进一步验证了所提出方案的有效性.
This paper studies chaos synchronization of the new hyperchaotic Chen system via nonlinear control. A new method for improving the Lyapunov function of error dynamics of synchronization designed by Jiang and Huang et al is presented. The method removes the limitation occasioned by the Lyapunov function having only one form, Based on Lyapunov theory, a nonlinear controller is designed to synchronize two identical systems and two different chaotic systems, Chaos synchronization of two identical hyperchaotic Chen systems and two different chaotic systems （the hyperchaotic Chen system and the hyperchaotic Rǒssler system） have been proved theoretically. Numerical simulations show the effectiveness of the proposed method.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2006年第12期6261-6266,共6页
Acta Physica Sinica
基金
国家自然科学基金(批准号:60573172)
辽宁省高等学校科学技术研究计划(批准号:20040081)资助的课题.~~
关键词
超混沌chen系统
自同步
异结构同步
非线性控制器
hyperchaotic Chen system, synchronization of two identical chaotic systems, synchronization of two different chaoticsystems, nonlinear controller
