基于混沌导频信号同步控制的混沌保密通信

发布时间：2018-05-20 00:07

本文选题：混沌通信 + 混沌同步　；参考：《计算机应用研究》2014年09期

【摘要】：分析了现有混沌掩盖保密通信存在的问题,给出了混沌同步控制信号与混沌调制信号相分离的混沌保密通信新方法。新方法采用混沌导频信号独立完成通信收发两端的混沌系统同步控制,较好地解决了原有混沌通信系统中已调信号既实现同步控制又承载信息信号所引起的信息信号须远小于混沌调制信号和抗噪声性能差的问题。构建了采用Sprott系统I为混沌模型的混沌通信新方案仿真电路。仿真实验表明:通信收发两端混沌同步控制实现方式更灵活、混沌同步更精确、信息信号大小不再受混沌信号影响、抗噪声性能更强。同时,混沌调制信号和混沌同步控制信号分开也有助于这两方面技术独立地研究与发展,有利于构建性能更好的混沌保密通信系统。
[Abstract]:In this paper, the existing problems of chaotic masking secure communication are analyzed, and a new method of chaotic secure communication is presented, in which the chaotic synchronization control signal is separated from the chaotic modulation signal. The new method uses chaotic pilot signal to realize synchronization control of chaotic system at both ends of communication transceiver and transceiver independently. The problem that the information signal caused by the modulated signal in the original chaotic communication system can not only realize synchronization control but also carry the information signal is much smaller than that of the chaotic modulation signal and the poor anti-noise performance. The simulation circuit of a new chaotic communication scheme using Sprott system I as chaotic model is constructed. The simulation results show that the realization of chaotic synchronization is more flexible, the synchronization of chaos is more accurate, the size of information signal is no longer affected by chaotic signal, and the anti-noise performance is stronger. At the same time, the separation of chaotic modulation signal and chaotic synchronization control signal is also helpful for the independent research and development of these two technologies, and is conducive to the construction of a better chaotic secure communication system.
【作者单位】：金陵科技学院信息技术学院;
【基金】：江苏省教育厅高校自然科学研究项目(09kjd510008) 金陵科技学院科研经费资助项目
【分类号】：TN918;O415.5

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