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小波变换实现5涡卷超混沌吸引子的同步
引用本文:李健,熊淑桦,周激流.小波变换实现5涡卷超混沌吸引子的同步[J].四川大学学报(工程科学版),2007,39(3):145-148.
作者姓名:李健  熊淑桦  周激流
作者单位:1. 四川大学,电子信息学院,四川,成都,610064
2. 四川大学,数学学院,四川,成都,610064
摘    要:为了节约通信信道资源,采用小波变换去掉反馈变量的细节信息从而压缩其频带的方法实现了两个5涡卷超混沌吸引子的同步。在发送端,将系统的z变量通过小波滤波器滤出高频成分,将低频成分重构后发送到接收端,接收端将该信号作为反馈信号,实现了收发系统的同步。应用本同步方法不仅可以节约信道资源,同时,由于发送的信号已不是完整的混沌信号,也提高了系统的保密性。

关 键 词:5涡卷超混沌吸引子  小波变换  同步
文章编号:1009-3087(2007)03-0145-04
收稿时间:2006/3/17 0:00:00
修稿时间:2006-03-17

Synchronization of Two 5-scroll Hyperchaotic Attractors Using Wavelet Transform
LI Jian,XIONG Shu-hua,ZHOU Ji-liu,Deng Jin.Synchronization of Two 5-scroll Hyperchaotic Attractors Using Wavelet Transform[J].Journal of Sichuan University (Engineering Science Edition),2007,39(3):145-148.
Authors:LI Jian  XIONG Shu-hua  ZHOU Ji-liu  Deng Jin
Affiliation:School of Electronics and Info. Eng.,Sichuan Univ.,Chengdu 610064,China;School of Electronics and Info. Eng.,Sichuan Univ.,Chengdu 610064,China;School of Electronics and Info. Eng.,Sichuan Univ.,Chengdu 610064,China
Abstract:In order to save the communication channel resource, the synchronization of two 5-scroll hyperchaotic attractors was realized using wavelet transform to remove the detailed information of the feedback variable so as to compress its frequency spectrum width. In the transmitter, the high frequency parts of variable z were filtered out through a wavelet filter, then the low frequency parts were reconstructed and sent to the receiver. In the receiver, this reconstructed signal was used as feedback signal and the synchronization was realized. Using this synchronous method, the system resource was saved, and because the transported signal was not a whole chaotic signal, the security performance of the system was improved.
Keywords:5-scroll hyperchaotic attractor  wavelet transform  synchronization
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