两种混沌同步法及其用于通讯的比较  

COMPARISON BETWEEN TWO TECHNIQUES OF CHAOS SYNCHRONIZATION

作　　者：马文麒[1] 

机构地区：[1]吉林师范学院物理系

出　　处：《宁夏大学学报（自然科学版）》1997年第3期235-240,共6页Journal of Ningxia University(Natural Science Edition)

基　　金：吉林省教委科学基金

摘　　要：用Ｌｏｒｅｎｚ系统对两种混沌同步方法——变量替换法和变量反馈法进行了数值研究．结果表明用单变量反馈可实现混沌同步，并比变量替换法有较快的收敛速率和较高的同步稳定性．用单变量反馈法同步的混沌系统同样可以用于通讯，且结构简单，便于应用．Two techniques of chaos synchronization, variable substitution and variable feedback, are applied to Lorenz systems. Numeric simulation shows that synchronization of chaotic systems can be achieved by feedback of only one variable. Using feedback approach, convergence rate and stability are better than that obtaied by variable substitution method. The systems synchronized by feedback of one variable can also be used to secure communications. The technique is more convenient in practical use.

关 键 词：混沌同步 变量替换 变量反馈 通讯 

分 类 号：O414.2[理学—理论物理]