一种新的超混沌扩频序列及其性能分析  

A New Hyperchaotic Spread Spectrum Sequences and Its Performance Analysis

作　　者：郑艳[1] 王光义[1] 

机构地区：[1]杭州电子科技大学电子信息学院,浙江杭州310018

出　　处：《杭州电子科技大学学报（自然科学版）》2007年第3期9-12,共4页Journal of Hangzhou Dianzi University：Natural Sciences

基　　金：浙江省自然科学基金资助项目(Y105175);杭州电子科技大学科研基金资助项目(KYS051505010)

摘　　要：混沌具有类似噪声的连续宽谱特性,把它应用于混沌通信已成为目前国内外研究的热点。该文主要研究一个四维Lorenz超混沌系统所产生的数字超混沌序列,对超混沌序列进行了二值量化以及平衡性、自相关性、互相关性等特性分析。结果表明Lorenz超混沌序列性能优良,是DS-CDMA通信系统的优选码型。Chaotic signals have the properties of continuous power spectrum as the noisy signal.And it has been paid especially attention to apply the chaotic signals into chaotic communication at home and abroad recently.This paper studies a digital hyperchaotic spread spectrum sequences based on the four-dimensional hyperchaotic Lorenz system.This paper quantizes the digital hyperchaotic spread spectrum sequences into a binary one firstly.Then the balance and correlation of the new sequence are analyzed.Analytical results in this paper show that the hyperchaotic Lorenz spread spectrum sequences have good performances for the DS-CDMA system.

关 键 词：超混沌 码分多址通信系统 扩频序列 特性分析 

分 类 号：TN914.42[电子电信—通信与信息系统]