Research On Chaotic System Synchronization And Its Application In Communication

Chaos synchronization is found to be usefully and 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 synchronize and make use of chaotic signal. Theoretic analysis is used in many research of chaos synchronization. However, there is not much relation between chaotic theory and practical application. So in this dissertation we derive available control circuit to enhance the relations between chaotic theory and practical application. However, there is a long distance between chaotic theory and practical application. So in this dissertation we derive available control circuit to enhance the relations between chaotic theory and practical application.In the dissertation , we first analyze detailedly the complicated dynamic characteristic and configuration of Lorenz and Chen circuit ,and use the simulation software Multisim2001 to do the simulation analysis .Then, based on the interrelated theoretic, we design the adaptive control circuit of two Lorenz chaotic systems. We derive available circuit parameters with which we simulate the circuit on the simulation software Multisim 2001. We observe the chaos synchronization figure of Lorenz chaotic system,which have some unknown some parameters but some parameters'symbol, on the oscillograph. At last, we deduce a type of secure communication base on Lorenz synchronized system, and make the circuit simulation for it.