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对混沌电路同步进行了理论分析，着重讨论了电路参数对同步建立时间的影响，并提出了缩短同步时间的方法．还讨论了利用混沌实现通信加密的设想，通过ＰＳＰＩＣＥ软件对提出的混沌加密数字通信系统进行了模拟，并在实验室实现了混沌键控调制解调数字通信实验电路，就低速率信号进行了测试，实验结果与理论分析非常吻合
The theoretical analysis of the synchronization of chaotic circuits is made, and the influence of circuit parameters on the establishment of synchronization is emphatically discussed. A method of shortening the synchronization time is also proposed. The idea of using chaos to realize the communication encryption is also discussed. The proposed chaotic encryption digital communication system is simulated by the PSPICE software, and the experimental circuit of the chaotic keying modulation and demodulation digital communication is implemented in the laboratory to test the low-rate signal The experimental results are in good agreement with the theoretical analysis