Chen混沌系统的一种自适应同步方法  

An Adaptive Synchronization Method of Chen Chaotic System

作　　者：张书英[1] 朱芳来[1] 黄云鹏[1] 王改云[1] 

机构地区：[1]桂林电子科技大学计算机与控制学院,广西桂林541004

出　　处：《计算机仿真》2008年第8期328-330,共3页Computer Simulation

基　　金：国家自然科学基金项目(60464001)资助;广西自然科学基金项目(0640171)资助

摘　　要：混沌系统的研究在国内外正在广泛的开展,如何使得对混沌系统的控制达到良好的控制效果构成了问题的关键。由于Chen混沌系统具有的参数不确定性,以至于常规的控制方法很难实现对Chen混沌系统的控制,讨论了一种参数可调节的自适应同步设计方法。设计出了可以使两个同结构的Chen系统状态渐近同步的自适应控制器,其参数调节律由Lya-punov稳定性理论来确定。最后进行数字仿真,仿真结果表明了这种方法的有效性和实用性。The research of chaotic system is carryied out broadly at home and abroad, and the method for getting fine effect from the controlling of chaotic system is much more important. Generic methods are not appropriate for Chen chaotic system with uncertain parameters, and a design method of adaptive synchronization is discussed. An adaptive controller which can make the states of two identical Chen chaotic system asymptotically synchronization is developed and the adaptation laws for the parameters are given by L＇yapunov stability theory. Finally, numerical simulations is carried out, the simulation results show that the design method has good performance.

关 键 词：陈氏混沌系统 混沌同步 李亚普诺夫稳定性 自适应控制 

分 类 号：O231.2[理学—运筹学与控制论]