| GPS软件接收机捕获跟踪算法研究与仿真 |
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| 引用本文： | 徐敏,翟传润,战兴群,张炎华. GPS软件接收机捕获跟踪算法研究与仿真[J]. 微计算机信息, 2007, 23(28): 180-181,251 |
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| 作者姓名： | 徐敏 翟传润 战兴群 张炎华 |
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| 作者单位： | 上海交通大学,上海,200030 |
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| 基金项目： | 上海市科技攻关计划重大项目 |
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| 摘 要： | 本文对GPSL1软件接收机的捕获跟踪算法进行了研究。GPS信号的捕获分别采用时域滑动相关捕获方法和频域快速捕获算法，通过分析比较认为频域快速捕获算法计算量大为减少；在GPS信号跟踪中，采用非相干延迟锁定环（DLL），锁相环（PLL）实现对GPS信号的跟踪。
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| 关 键 词： | 捕获 跟踪 |
| 文章编号： | 1008-0570（2007）10-1-0180-02 |
| 修稿时间： | 2007-07-232007-08-25 |
Acquisition and Tracking Method in GPS Software Receiver |
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| XU MIN,ZHAI CHUANRUN,ZHAN XINGQUN,ZHANG YANHUA. Acquisition and Tracking Method in GPS Software Receiver[J]. Control & Automation, 2007, 23(28): 180-181,251 |
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| Authors: | XU MIN ZHAI CHUANRUN ZHAN XINGQUN ZHANG YANHUA |
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| Abstract: | In this paper we investigate the signal acquisition and tracking algorithms for GPS L1 frequency C/A code software receiver. The acquisition of GPS signal individually employs time domain serial search and frequency domain parallel search by FFT algorithm. Analysis result shows that frequency domain acquisition by FFT algorithm has a much less computation load. Non-correlated DLL and PLL are used in the GPS signal tracking. |
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| Keywords: | GPS FFT |
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