CDMA系统扩频地址码的性能研究与分析  

Performance Investigation of CDMA Spread Spectrum Systems Address Code

作　　者：胡文嘉[1] 谢晓尧[1] HU Wen-jia, XIE Xiao-yao

机构地区：[1]贵州师范大学贵州省信息与计算科学重点实验室,贵州贵阳550001

出　　处：《电脑知识与技术》2014年第1期26-28,35,共4页Computer Knowledge and Technology

摘　　要：CDMA技术以不同的正交码序列区分不同的用户，所以称为“码分多址”技术。混沌是非线性系统中出现的确定性的，类随机的过程。混沌系统最基本的特征是对初始值具有敏感性，尤其在伪随机码的产生方面，这些独具特色的性质使得混沌在通信应用领域有着很好的应用前景。该文利用MATLAB编程实现对基于不同扩频码（m,gold,Logistic）的系统性能进行仿真分析，比较其性能优劣。CDMA uses different orthogonal codes sequences to distinguish different users. Therefore ,it is called ＆quot;code division multiple access＆quot;technology. Chaos is an uncertainty,random process arising from the nonlinear system. The basic feature of the Chaotic systems is its extremely sensitive to the initial conditions,these particular features let Chaos have a promising application future in communications applications fields,especially in the field of pseudo-random selection of the code. Then sing MATLAB program, based on different spread spectrum code（m, gold, logistic） ,are simulated and analyzed and compares its advantages and disadvantages.

关 键 词：混沌 扩频序列 扩频通信 码分多址 

分 类 号：TP393[自动化与计算机技术—计算机应用技术;自动化与计算机技术—计算机科学与技术]