| GPS软件接收机算法研究 |
| |
| 引用本文： | 吴娟丽,关可,王懿娜.GPS软件接收机算法研究[J].现代电子技术,2008,31(22). |
| |
| 作者姓名： | 吴娟丽 关可 王懿娜 |
| |
| 作者单位： | 长安大学,信息工程学院,陕西,西安,710064 |
| |
| 摘 要： | 为了能快速、准确地提取导航数据,对GPS软件接收机的捕获和跟踪算法进行研究。捕获算法采用基于FFT的频域快速捕获算法,在跟踪环路中,载波跟踪算法采用锁相环(PLL),码跟踪算法采用非相干延迟锁相环(DLL),成功实现了对GPS信号的快速准确跟踪,这一处理算法性能优越,易于在PC机上软件实现。
|
| 关 键 词： | GPS 捕获 FFT 跟踪 锁相环 |
Study on the Algorithm of GPS Software Receiver |
| |
| WU Juanli,GUAN Ke,WANG Yina.Study on the Algorithm of GPS Software Receiver[J].Modern Electronic Technique,2008,31(22). |
| |
| Authors: | WU Juanli GUAN Ke WANG Yina |
| |
| Abstract: | In order to extract the navigation data fast and accurately,the capture and tracking algorithm to the software-defined GPS receiver is studied in this paper.The frequency-domain parallel serach algorithm based on the FFT is used in the capture algorithm.In the tracking loop,PLL is used for the carrier tracking and non-coherent DLL is used for the code tracking.Tracking the GPS signal rapidly and accurately is implemented successfully.This algorithm has superior performance,it is easy to be implemented on PC. |
| |
| Keywords: | GPS capture FFT tracking phased lock loop |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
