Acta Metallurgica Sinica(English letters) ›› 2007, Vol. 14 ›› Issue (2): 103-105.doi: 1005-8885 (2007) 02-0103-03

• Artificial Intelligence • 上一篇    下一篇

Adaptive synchronization of Chen chaotic system with uncertain parameters

刘玉良;ZHU Jie; DING Da-wei   

  1. Zhejiang Ocean University
  • 收稿日期:2006-11-15 修回日期:1900-01-01 出版日期:2007-06-30

Adaptive synchronization of Chen chaotic system with uncertain parameters

LIU Yu-liang;ZHU Jie; DING Da-wei   

  1. Zhejiang Ocean University
  • Received:2006-11-15 Revised:1900-01-01 Online:2007-06-30

摘要:

By the control method independent of system parameters, synchronization of two Chen chaotic systems with identical, but uncertain parameters is discussed in this article. Based on Lyapunov’s theorem, an adaptive controller and the parameters estimate update law are derived to make the solution of the error dynamical equation converge at the point E(0, 0, 0) with a quick speed, that is, the states of two Chen chaotic systems can be asymptotically synchronized. Numerical simulations verify the effectiveness and the adaptivity to the variation of Chen system parameters.

关键词:

adaptive synchronization; Chen chaotic system;uncertain parameters

Abstract:

By the control method independent of system parameters, synchronization of two Chen chaotic systems with identical, but uncertain parameters is discussed in this article. Based on Lyapunov’s theorem, an adaptive controller and the parameters estimate update law are derived to make the solution of the error dynamical equation converge at the point E(0, 0, 0) with a quick speed, that is, the states of two Chen chaotic systems can be asymptotically synchronized. Numerical simulations verify the effectiveness and the adaptivity to the variation of Chen system parameters.

Key words:

adaptive synchronization;Chen chaotic system;uncertain parameters

中图分类号: