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Chinese Physics, 2005, Vol. 14(3): 472-475    DOI: 10.1088/1009-1963/14/3/007
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An active control synchronization for two modified Chua circuits

Li Guo-Hui (李国辉)
Department of Communication Engineering, Shanghai University, Shanghai 200072, China
Abstract  From modern control theory, an active control method to synchronize two modified Chua circuits with each other, which exhibit chaos, is presented. Some sufficient conditions of linear stability of the chaotic synchronization are obtained from rigorous mathematic justification. On the basis of the state-observer, the controller is analytically deduced using the active control. It is shown that this technique can be applied to achieve synchronization of the two systems with each other, whether they are identical or not. Finally, numerical simulations show the effectiveness of the proposed control scheme.
Keywords:  chaos      synchronization      modified Chua circuit      active control      state observer  
Received:  01 April 2004      Revised:  19 October 2004      Accepted manuscript online: 
PACS:  05.45.Xt (Synchronization; coupled oscillators)  
  05.45.Pq (Numerical simulations of chaotic systems)  
Fund: Project supported by the Younger Foundation of Shanghai Municipal Commission of Education (Grant No 03AQ87).

Cite this article: 

Li Guo-Hui (李国辉) An active control synchronization for two modified Chua circuits 2005 Chinese Physics 14 472

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