一个四维混沌电路系统及其在保密通讯中的应用  

A Four-dimensional Chaotic Circuit System with Its Implementation in Secure Communication

作　　者：龙志超[1] 马大柱[1] 

机构地区：[1]湖北民族学院理学院,湖北恩施445000

出　　处：《湖北民族学院学报（自然科学版）》2015年第4期365-368,共4页Journal of Hubei Minzu University(Natural Science Edition)

基　　金：国家自然科学基金项目(11263003);湖北民族学院教研项目(2014JY030)

摘　　要：四维系统的Lyapunov指数中有一个大于0,即表明该系统是混沌系统.利用Multism软件设计了该混沌系统的模拟电路图,采用驱动响应式方法完成了系统的混沌同步,并给出了两种图片保密通讯方案,数值模拟表明图片数字化后与混沌信号同步传输比混沌信号对像素点位运算加密方法的效果要好.There is a positive Lyapunov exponent for a four-dimensional system,which indicates that the system is chaotic.The analogous circuit of this system is realized based on Multism software.The chaotic synchronization of the system is completed by the method of driving-response. The two kinds of schemes are presented.The numerical simulation shows that chaotic signal mixed with the pixel point operation is better than that of synchronous transmission with digital image.

关 键 词：图片加密 混沌电路 混沌同步 

分 类 号：O415.5[理学—理论物理] TN918[理学—物理]