新的超混沌伪随机序列及应用  

Novel hyper-chaotic pseudo-random sequence and its application

作　　者：刘鹏[1] 杨悦[1] 田小建[1] 

机构地区：[1]吉林大学电子科学与工程学院,长春130012

出　　处：《计算机工程与应用》2010年第24期4-6,50,共4页Computer Engineering and Applications

基　　金：国家自然科学基金(No.60372061)~~

摘　　要：基于掺铒光纤激光器超混沌系统生成伪随机序列,并对其性能进行了分析。实验表明该序列具有较好的初值敏感性、频数检验特性、序列检验特性以及自/互相关特性,以及较高的安全性和保密性。同时序列的产生方法简单,易于实现,是一种应用前景广阔的伪随机序列。最后,将该超混沌伪随机序列应用于图像加密,取得了较好的效果。A new pseudo-random sequence based on hyper-chaos of Er-doped fiber laser is proposed,and then its performance is analyzed.The experimental results demonstrate that the sequence is sensitive to the secret key,and has better frequency test feature,sequence test feature and correlation.So the pseudo-random sequence has high security level.At the same time, the sequence generation method is simple and easy to implement.It is a class of promising pseudo-random sequence in practical applications.Finally,the hyper-chaotic pseudo-random sequence is applied to image encryption and obtains good results.

关 键 词：掺铒光纤激光器 超混沌 伪随机序列 图像加密 

分 类 号：TP311.56[自动化与计算机技术—计算机软件与理论]