序列偶扩频通信系统性能分析  

Analysis on Sequence-pairs Spread Spectrum Communication System

作　　者：霍晓磊[1] 康霞[2] 

机构地区：[1]军械工程学院光学与电子工程系,河北石家庄050003 [2]石家庄经济学院信息工程学院,河北石家庄050031

出　　处：《通信技术》2011年第8期1-3,共3页Communications Technology

摘　　要：将一种新的扩频信号形式——序列偶引入到扩频通信系统中。依据扩频通信系统对扩频序列的技术要求,用遗传算法搜索出40至50长的次优二元序列偶,发现存在几个性能优于Gold序列的序列偶。提出了基于序列偶的扩频通信系统的构思,对这种扩频通信系统的性能进行了仿真,并同基于Gold码的扩频通信系统的性能进行了比较。实验结果表明,序列偶扩频通信系统的性能在某些方面优于Gold码扩频通信系统。A new definiendum of PN sequence——sequence pair is introduced into the spread spectrum communication system.According to the technical requirements of PN sequence,the genetic algorithms is employed to search hypoperfect sequence pairs between length 40 and length 50,and several sequence pairs with better correlation function than Gold sequence are found.This paper also presents a new sequence-pair spread spectrum communication system,and this system is studied and simulated,and compared with Gold sequence spread spectrum communication system.The experiment results indicate that the performance of sequence pairs spread spectrum communication system is better than that of Gold sequence spread spectrum communication system in some ways.

关 键 词：序列偶 序列偶相关 扩频通信 误码率 

分 类 号：TN911.3[电子电信—通信与信息系统]