计算机工程与应用2016，Vol.52Issue(13)：131-135,217,6.DOI:10.3778/j.issn.1002-8331.1510-0087
一种二级对称Logistic混沌扩频通信算法
New symmetrical Logistic with two levels chaotic spread spectrum communication algorithm
摘要
Abstract
Chaotic sequence, as a spreading code in spread spectrum systems, has the characteristics of rich sequences and good confidentiality. The autocorrelation of traditional two-dimensional maps has great defects, with its high side-lobes and nonzero means. To solve those problems, this paper proposes an improved symmetrical two-dimensional Logis-tic map with two levels based on phase space reconstruction, which greatly optimizes the correlation property. The simula-tion results prove that the algorithm mentioned in this paper is effective. Furthermore, the power spectral density, maxi-mum Lyapunov exponent and the cross-correlation are analyzed, which show that the new method is consistent with the requirements of spread spectrum sequences.关键词
混沌/Logistic序列/相关性/扩频通信Key words
chaotic/Logistic sequence/correlation/spread spectrum communication分类
电子信息工程引用本文复制引用
雒明世,方阳..一种二级对称Logistic混沌扩频通信算法[J].计算机工程与应用,2016,52(13):131-135,217,6.基金项目
国家自然科学基金(No.61472324). （No.61472324）
