| Chaotic phenomenon appears in the non-linear dynamic system. Chaos is determinant, acyclic, convergent, sensitive to initial value and it looks as if random but actually not.It is important to discover that two chaos systems can be synchronized. Chaotic synchronization enables the chaotic communication. Chaotic communication will be one of the pop research subjects in 21's century because of high security, large capacity and it's capability of anti disturbance.DSP is one significant embranchment of the micro computer. Chaotic communication facility based on DSP is dominant in cheap cost, portability and maintenance. The encrypting of code based on DSP can keep copyright from pirate. DSP enable a good serial correlation, which is appreciated in extend frequency communication.Nevertheless, a majority of chaos study is based on PC simulation or analog circuit realization. It is pressed for chaos research based on other fixture or DSP. So the innovation of this thesis is the implementation of chaotic synchronization based on DSP.Theory about chaotic synchronization is the base of chaotic secrecy communication. Firstly some important concept as well as method in analysis and research is introduced in this paper. After some common scheme about chaotic synchronization and chaotic modulation has been studied, the performance of these plans has been discussed.Then we analyze the basic principle of Lorenz system in the 4th chapter. We amplify the technique of the implementation of Lorenz synchronization based on TMS320C6711 DSP. It is obvious that we succeed at experiment. This measure is available in the achievement of Chua, Rossler and Jerk economy too.The 5th section is the actualization of the Rossler synchronization based on DSP. We apply the mutual coupling method to make the Rossler system in-phase in the matched parameter circumstance. Finally, we do some disquisition on the coupling coefficient and point out that the mutual coupling method is not versatile. |
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