CDMA通信中多址序列相关性的研究及仿真  

Research and system simulation on the correlation of spread spectrum sequence in CDMA communication

作　　者：戚云军[1] 田红心[1] 毕轶慧[1] 

机构地区：[1]西安电子科技大学

出　　处：《信息技术》2008年第2期74-77,共4页Information Technology

摘　　要：扩频序列设计和选择是码分多址(CDMA)扩频通信的关键技术之一,扩频码序列的设计就是构造不同结构的具有良好相关性的伪随机序列来满足CDMA系统的要求。现主要研究了应用于CDMA通信中的m序列、Gold序列和Kasami序列的原理、性能和构造方法,且基于MAT-LAB软件M语言编程以上序列的实现和相关性分析,并比较了其各自特点分析了其在不同环境下的适用性。Design and selection of spread spectrum code sequence is one of the key technologies of CDMA spread spectrum communication. The design of spread spectrum code sequence is constructing pseudo-random sequence which is possessed of different structure and good performances in order to satisfy the need of CDMA system. This article mainly introduces the basic principle, property and constructing means of m sequences, Gold sequences and Kasami sequences which are used in CDMA communication, also introduces its MATLAB and M language program realization and analysis of correlation, compares each characteristic and analyzes the applicability in deferent circumstances.

关 键 词：CDMA 伪随机序列 相关性 MATLAB仿真 

分 类 号：TN914[电子电信—通信与信息系统]