Research On Circuit Synchronization Of Chen Chaotic Systems In Adaptive Control

Chaos synchronization is found to be usefulIt is greatly potential in many disciplines such as secure communication ,patulous frequency communication , communication compression and so on . Recently,many scientists make great efforts on the research that how we can control and make use of chaotic signal. Theoretic analysis is used of many researchs of chaos synchronization. However, there is not much relation between chaotic theory and practical application. So in this paper I derive available control circuit to enhance the relations between chaotic theory and practical application.In the paper,The research of chaos synchronization of chaotic systems based on the theory of adaptive control. All kinds of methods of realizing chaos synchronization are studied firstly , compare there methods and find out each advantage and disadvantage. Then we can choice the best method to realize the synchronization of chen chaotic system.Afterward,I analyse detailedly the complicated dynamic characteristic and configuration of chen circuit. Then I use Multisim2001 to emulational analysis .I can observe the Chen graph on the oscillograph. At last, Based on the work in"Modification for synchronization of Rossler and Chen chaotic systems",Physics Letters A 301(2002)224-230,we design the adaptive control circuit of Chen chaotic system. We derive available circuit parameters with which we simulate the circuit on the simulation software Multisim 2001. We observe the chaos synchronization figure of Chen chaotic system,which have some unknown parameters or all unknown parameters or known some parameters'symbol ,on the oscillograph.