一种混沌扩频序列的数字实现方法及其相关特性

A Kind of Chaotic Spread Spectrum Sequences' Digital Implementation and Its Correlation Property

研究了离散时间动态系统混沌序列的统计特性 .为满足数字通信的实际需要 ,提出了该混沌序列的数字实现方法 .软件模拟结果显示该方法保持了良好的混沌特性 ,表明了该方法是正确可行的 .实验数据表明了混沌序列具有较理想的相关特性 。

This paper analysed the statistic property of chaotic sequence generated by a widely studied discrete time dynamic system, Logistic_Map. To meet the need of digital communication,a kind of digital implementation of it was proposed. The simulation shows that the Logistic_Map digital sequences keep good chaotic property and the implementation is correct and reliable. As a result , Logistic_Map sequences have good correlation property and they should be given first consideration as spread spectrum address codes of CDMA system.