CDMA系统扩频地址码的性能研究与分析
胡文嘉;谢晓尧
【期刊名称】《电脑知识与技术》 【年(卷),期】2014(000)001
【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。íMA uses different orthogonal codes sequences to distinguish different users. Therefore ,it is called \access\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. 【总页数】4页(26-28,35)
【关键词】混沌;扩频序列;扩频通信;码分多址 【作者】胡文嘉;谢晓尧
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