基于变结构混沌的伪随机序列发生器  

Pseudo random sequence generator based on variable structure chaos

作　　者：丘嵘[1] 袁方[2] 

机构地区：[1]广东科学技术职业学院,广东广州510640 [2]杭州电子科技大学电子信息学院,浙江杭州310018

出　　处：《现代电子技术》2012年第11期64-67,共4页Modern Electronics Technique

基　　金：国家自然科学基金资助项目(60971046)

摘　　要：为产生随机性能良好的伪随机序列,提出了一个新的变结构混沌系统。该混沌系统在一个开关函数控制下其系统结构随时间随机地转换,所产生的混沌信号是两个不同的混沌信号的混合,具有良好的复杂性。基于该变结构混沌系统设计了一种伪随机序列发生器,采用NIST标准和STS-2.0b测试套件对其产生的伪随机序列进行了统计性能测试,测试结果表明该伪随机序列发生器具有良好的随机性,可应用于计算机、通信、信息加密等领域中。In order to generate high-performance pseudo random sequences, a new variable structure chaotic system is pro- posed, whose structure converts randomly with time under the control of a switching function. The chaotic signal generated in the process of convertion is the mixture of two different chaotic signals, which has good complexity. Based on the variable structure chaotic system, a pseudo random sequence generator was designed. The statistic performance of its randomness was tested with NIST standard and STS-2.0b testing suite. The tested results show that the pseudo random sequence generator possesses good randomness, and can be used in calculators, communications and information encryptions.

关 键 词：混沌 变结构混沌 伪随机序列 随机性 

分 类 号：TN791-34[电子电信—电路与系统]