基于二次筛选的扩频信号PN序列分离软件设计

计算机工程与应用 ›› 2007, Vol. 43 ›› Issue (2): 160-160.

基于二次筛选的扩频信号PN序列分离软件设计

程皓,郭伟,刘飞

电子科技大学国家通信抗干扰实验室

收稿日期:2006-01-10 修回日期:1900-01-01 出版日期:2007-01-11 发布日期:2007-01-11
通讯作者: 程皓 chenghao

Soft Design of PN Sequence Separation of DS/CDMA Signals Base on Twice Filtration

电子科技大学国家通信抗干扰实验室

Received:2006-01-10 Revised:1900-01-01 Online:2007-01-11 Published:2007-01-11

摘要/Abstract

摘要： 针对于多用户条件下DS/CDMA系统，在已有的硬件平台和数据采集的基础上，讨论了利用DS/CDMA系统独有的多用户信息混合后相位重复特性，在已估计出其他参数前提下，基带接收，利用分段后用户相位信息不断重复的特性，采取同相相加反相相减，无关项舍弃的简单操作，实现多用户特征序列的快速分离，并完成软件设计。软件运行结果表明，该算法可行，软件设计正确。

关键词: DSP设计二次筛选法相位重复 PN序列估计

Abstract: Basing on the accomplished hard system and data collection, a separation algorithm for DS/CDMA signals with unknown spreading codes are discussed in this paper. The reappearance of mixing users’s phase informations was utilized and could separate the users’s PN sequence by the simply pluse and subtract operation in low SNR. The result of the estimation algorithm and the soft is tested, and has proved that it is feasible and effective.

Key words: DSP soft design, twice filtration, phase reappearance , PN estimatio

程皓,郭伟,刘飞. 基于二次筛选的扩频信号PN序列分离软件设计[J]. 计算机工程与应用, 2007, 43(2): 160-160.

,,. Soft Design of PN Sequence Separation of DS/CDMA Signals Base on Twice Filtration[J]. Computer Engineering and Applications, 2007, 43(2): 160-160.