基于新四维混沌系统的复杂网络的混沌保密通信及噪声研究  

Chaoticsecure communication of complex networks and its noise research based on novel four-dimensional chaotic system

作　　者：付宏睿 董永刚 张建刚[2] FU Hong-rui;DONG Yong-gang;ZHANG Jian-gang(College of Architectural Engineering,Anyang University,Anyang 455000 ,China;School of Mathematics and Physics,Lanzhou Jiaotong University,Lanzhou 730070,China)

机构地区：[1]安阳学院建筑工程学院,河南安阳455000 [2]兰州交通大学数理学院,甘肃兰州730070

出　　处：《东北师大学报（自然科学版）》2018年第4期73-77,共5页Journal of Northeast Normal University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(61364001);河南省高等学校重点科研项目(18B110002)

摘　　要：以复杂网络为背景,根据Lyapunov稳定性理论,将一个新四维混沌系统作为全局耦合网络的节点,研究了其渐近同步问题.首先用新的混沌遮掩方法将其应用到保密通信中,并加入高斯白噪声对系统进行干扰;然后用小波分析理论对信号进行去噪处理;最后用Matlab进行数值仿真.结果表明,有用信号经过小波阈值去噪后可以很好地恢复出来.Taking the complex network as the background,and based on the Lyapunov stability theory, in this paper, the asymptotic synchronization is firstly studyed, for which a novel four-dimensional chaotic system is a globally coupled network's node. Secondly, the four-dimensional chaotic system is applied to secure communication by a novel chaos cover method. Then,Gaussian noise is added to cause noise interference, and the signal will be de-noised by wavelet analysis theory. Lastly, the result of numerical calculation with Matlab demonstrates that useful signals will be restored well after the wavelet threshold de-noising.

关 键 词：复杂网络 混沌同步 保密通信 噪声干扰 小波去噪 

分 类 号：TN918[电子电信—通信与信息系统] O23[电子电信—信息与通信工程]