CDMA系统扩频地址码的性能研究与分析

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。

Performance Investigation of CDMA Spread Spectrum Systems Address Code

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.