摘要
针对一类时延混沌系统参数未知的情况,将自适应技术与系统辨识技术应用于时延混沌系统的同步控制。在系统非线性动态函数的导数满足有界的基本假设条件下,给出了此类系统基于线性函数耦合的阈值条件。利用Lyapunov理论,分析了同步的渐进稳定性,给出并证明了该判定条件的充分性;同时给出系统参数的自适应辨识,使系统参数逐渐逼近真实值,实现具有不同初始点。
The synchronization of a class of time-delay chaotic systems with unknown parameters is investigated and an adaptive control strategy is proposed. The asymptotic stability of synchronization is analyzed based on the Lyapunov theory, and the sufficient condition is obtained. Furthermore, the synchronization threshold of the coupled system is estimated. According to this strategy, uncertain parameters are estimated. Using this control strategy, chaotic systems with unknown parameters and different initial conditions are synchronized.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2005年第4期708-710,共3页
Systems Engineering and Electronics
关键词
自适应参数估计
混沌同步
系统辨识
adaptive parameter estimation
chaotic synchronization
system identification
