摘要
扩频通信系统的频谱扩展是借助扩频函数而实现的,典型的扩频函数就是伪随机序列,实用的伪随机序列必须是具有随机性,有尖锐的自相关特性,有较小的互相关值,有较多的序列数,同时还要求序列平衡,易于实现等特点,本文首先介绍应用广泛的m序列和gold序列,在此基础上研究混沌扩频序列,提出混沌序列的优选准则,并将优选后的混沌序列与传统的伪随机序列Gold序列进行比较。
Spectrum expansion in spectrum expansion communication system is achieved with the help of spectrum expansion function.The typical spectrum expansion function is a pseudo random.sequence.The practical pseudo random sequence must features random,sharp correlation properties,less correlated value,more sequences and easy to realize.This pa- per put forth the rule of selecting the best chaotic sequence.A comparison is made be- tween the selected chaotic sequence and the traditional pseudo random sequence-Gold s...
出处
《通信与广播电视》
2008年第1期6-11,共6页
Communication & Audio and Video
关键词
扩频通信
混沌扩频序列
优选准则
spectrum expansion communication
chaotic spectrum expansion sequence
rule of best selection
