| 相位搜索法扩频码捕获的仿真实现 |
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| 引用本文： | 刘艳华.相位搜索法扩频码捕获的仿真实现[J].通信技术,2011,44(12):147-149. |
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| 作者姓名： | 刘艳华 |
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| 作者单位： | 盐城工学院信息工程学院,江苏盐城,224051 |
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| 摘 要： | 扩频码同步是扩频通信系统中特别关键的技术,相位搜索法捕获是扩频码捕获中最基本的方法,硬件实现最简单,在短PN码捕获时有很大的优势.文中在MATLAB平台研究该捕获方法的实现,给出了整个同步过程的仿真模型,各部分的详细参数设置和关键部分的仿真结果.选择长度为31的PN码进行仿真,用5级移位寄存器产生本地PN码序列,不断调整其相位,直到本地PN码与接收的PN码序列初步对齐.仿真结果表明,该模型能够实现31位PN码的正确捕获.捕获时间与本地PN码和接收PN码之间的相位差有关.
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| 关 键 词： | 扩频码 相位搜索 仿真 |
Simulation of PN Code Acquisition based on Phase Search |
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| LIU Yan-hua.Simulation of PN Code Acquisition based on Phase Search[J].Communications Technology,2011,44(12):147-149. |
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| Authors: | LIU Yan-hua |
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| Institution: | LIU Yan-hua (School of Information Engineering,Yancheng Institution of technology,Yancheng Jiangsu 224051,China) |
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| Abstract: | Spreading code synchronization is a critical technology in spread spectrum communication system,the PN code acquisition based on phase search is the most basic method,and it is quite simple in hardware implementation,and of superiority in short PN code acquisition.The implementation of this acquisition algorithm is studied on MATLAB,the simulation model of the whole synchronization process,the detailed parameters of each part and the simulation results of critical parts are also given.In simulation,the leng... |
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| Keywords: | spreading code phase search simulation |
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