基于自适应无源化的蔡氏电路混沌同步  

Synchronization of Chua's Circuit Chaotic System Based on Adaptive Passivity

作　　者：吴忠强[1] 邵慧[1] 

机构地区：[1]燕山大学电气工程学院,河北秦皇岛066004

出　　处：《控制工程》2009年第2期199-202,共4页Control Engineering of China

基　　金：国家留学基金资助项目(2004813033)

摘　　要：根据蔡氏电路混沌系统的特点,得出了蔡氏电路混沌驱动系统与响应系统的误差系统。根据混沌系统的同步条件,可将混沌的同步问题转化成为误差系统的稳定性问题,即使混沌同步误差系统渐近稳定以实现混沌同步控制。针对蔡氏电路混沌系统的误差系统,采用自适应无源化方法,设计了使同步误差系统渐近稳定的具有自适应功能的反馈镇定器。该控制方法实现了2个蔡氏电路混沌系统同步,仿真研究验证了该方法的有效性。According to the characteristic of chua＇s circuit chaotic system, an error system between the ehua＇s circuit chaotic drive system and response system is obtained. By the condition of synchronization of chaotic systems, the chaos synchronization problem is transformed into the stability problem of the error system. The chaotic error system is asymptotically stabilized in order to achieve chaos synchronization. To the chua＇s circuit chaotic error system, using the adaptive passivity method, a feedback controller with adaptive function is designed to ensure the asymptotieal stability of the synchronous error system. The synchronization of chua＇s circuit chaotic systems is achieved by using this approach. The simulation results show that the control method is effective.

关 键 词：蔡氏电路混沌系统 混沌同步 误差系统 自适应无源化 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]