A-CDMA系统多址与保密结合的扩频码的研究(英文)  

Spreading Codes Combined Multiple Access and Encryption for ACDMA System

作　　者：饶妮妮[1] 

机构地区：[1]电子科技大学自动化系,成都610054

出　　处：《电子科技大学学报》1999年第5期451-454,共4页Journal of University of Electronic Science and Technology of China

基　　金：国家留学基金;管理委员会基金

摘　　要：基于一个异步直接序列码分多址模型，给出了多址与保密结合的扩频码应具备的条件。为了研究这类扩频码对A-CDMA系统性能的影响，比较了纯随机序列和Gold伪随序列的偶互相关概率分布，得到一些有用结论。In this paper, the requirements for the spreading codes combined multiple access and encryption for CDMA systems are presented using asynchronous direct sequence CDMA (A-CDMA) systems as a model.In order to investigate the effect of this soft spreading codes on operational performance of A-CDMA system,the probability distribution functions of the even cross-correlation functions of the purely random sequences and Gold codes is compared. Finally, some useful conclusions are obtained.

关 键 词：多址 保密 A-CDMA 扩频码 多址通信系统 

分 类 号：TN914.5[电子电信—通信与信息系统]