频分复用在混沌保密通信中的应用研究  

APPLICATION RESEARCH ON FREQUENCY-DIVISION MULTIPLEXING TO SECRET COMMUNICATION

作　　者：兀旦晖[1] 

机构地区：[1]陕西科技大学电气与信息工程学院,陕西西安710021

出　　处：《陕西科技大学学报（自然科学版）》2009年第5期89-92,99,共5页Journal of Shaanxi University of Science & Technology

基　　金：陕西省教育厅专项科研计划项目(05JK159)

摘　　要：给出了一种便于集成的改进型Chua电路,构造出一种具有一定鲁棒性、抗干扰等特性的驱动-响应式键波混沌同步系统,给出了影响混沌同步的主要因素和键波频带宽度的估算方法;根据频分复用技术解决了目前如何同时在同一信道中高效传输混沌同步控制信号和密文信号的关键性问题,通过实验证明了此方案的可行性,为混沌在保密通信中的实际应用奠定了基础.Chua′s circuit,which is improved to integrate conveniently,is presented.A drive-response band chaotic synchronization system is constructed,which possesses to a certainly stability、resisting-disturbance and so on,at the same time,the major factors of influencing chaotic synchronization and the method of estimating bond frequency band are presented;according to FMD technique,the critical problem of how to simultaneously transmit the controlling signal of chaotic synchronization and the secret signal at a channel can be solved,and that,a practical experiment validates the method;as a result,the research in the paper provides the foundation of putting chaos into practice application to secret communication.

关 键 词：保密通信 频分复用 CHUA电路 混沌同步 混沌同步自保持 

分 类 号：TN918.1[电子电信—通信与信息系统]