异结构不确定混沌系统的广义投影同步  

Generalized projective synchronization between two different uncertain chaotic systems

作　　者：王宇野[1] 许红珍[1] 

机构地区：[1]哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨150001

出　　处：《系统工程与电子技术》2010年第2期355-358,共4页Systems Engineering and Electronics

基　　金：哈尔滨市创新人才基金(2007RFQXG025);哈尔滨工程大学校基金(HEUFT06023)资助课题

摘　　要：针对一类参数随时间变化的不确定混沌系统,用鲁棒自适应方法实现异结构混沌系统的广义投影同步和参数辨识。基于李亚普诺夫稳定性理论,设计了鲁棒自适应控制器和参数自适应律。通过改变广义投影同步的比例矩阵,获得所有状态变量任意比例于原驱动系统的混沌信号,并辨识出系统所有未知参数。以Rssler超混沌系统和Lü超混沌系统为例,数值仿真验证了所设计方法的有效性和可行性。Robust adaptive control is proposed for the generalized projective synchronization（GPS） and parameters identification between two different uncertain chaotic systems with bounded time-varying unknown parameters.Based on Lyapunov stability theory,a robust adaptive control law and a parameter identification scheme are presented.The proposed scheme can successfully synchronize the full states of the two chaotic systems in the generalized projection sense by changing the scale matrix and identify the unknown parameters despite the noise of the parameters.Rssler hyperchaotic system and Lü hyperchaotic system are used to prove the prensted method for GPS between two different uncertain hyperchaotic systems.Numerical simulations are presented to show the effectiveness and feasibility of the proposed method.

关 键 词：广义投影同步 鲁棒自适应控制 参数辨识 Rssler超混沌系统 Lü超混沌系统 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]