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

• Wireless • Previous Articles     Next Articles

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


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

CLC Number: