| GPS精频捕获算法的实现 |
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| 引用本文： | 梅艳,胡辉,黄德昌.GPS精频捕获算法的实现[J].适用技术之窗,2008(12):34-36. |
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| 作者姓名： | 梅艳 胡辉 黄德昌 |
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| 作者单位： | 华东交通大学信息工程学院,江西南昌330013 |
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| 摘 要： | 为了提高GPS软件接收机信号捕获的载波频率分辨率。在基于FFT的快速并行码捕获算法中．利用输入信号在短时间内两个不同时刻的相位差来获取更高的频率分辨率。实验结果表明，该算法在不增加捕获时间的基础上确实提高了载波频率分辨率，捕获快速准确，为后续信号的跟踪环节提供了有利条件。
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| 关 键 词： | FFT 相位差 捕获 频率分辨力 |
Design of GPS Acquisition Algorithm with Fine Frequency Estimation |
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| Mei Yan Hu Hui Huang Dechang.Design of GPS Acquisition Algorithm with Fine Frequency Estimation[J].Science & Technology Plaza,2008(12):34-36. |
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| Authors: | Mei Yan Hu Hui Huang Dechang |
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| Affiliation: | Mei Yan Hu Hui Huang Dechang(School of Information Engineering, East China Jiao Tong University, Jiangxi Nanchang 330013) |
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| Abstract: | In order to improve the carrier frequency resolution of GPS software receiver, in a fast parallel tracking algorithm based on FFT, through a phase relationship in a short time to improve the frequency resolution. The simulation results show that this method does increase the carrier frequency resolution with not adding acquisition time.lt is quick and accurate and provides favorable conditions for the follow-up tracking loop. |
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| Keywords: | FFT Phase Relationship Acquisition Frequency Resolution |
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