| 基于FFT的GLONASS中频信号快速捕获算法 |
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| 引用本文： | 叶久志,朱桂斌,李瑞睿,全鹏.基于FFT的GLONASS中频信号快速捕获算法[J].现代电子技术,2011,34(17):107-109,112. |
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| 作者姓名： | 叶久志 朱桂斌 李瑞睿 全鹏 |
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| 作者单位： | 重庆通信学院图像通信实验室,重庆,400035 |
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| 基金项目： | 国家科技人员服务企业项目支持(2009GJF10032); 重庆市科技攻关项目支持(CSTC,2010AC2037);重庆市科技攻关项目支持(CSTC,2009AC2032) |
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| 摘 要： | 为了提高GLONASS中频信号的捕获速度，根据GLONASS信号捕获的特点，引入离散傅里叶变换进行相关运算，实现并行捕获。实验利用实际采集的GLONASS中频数据，将传统的串行捕获算法与基于FFT的快速捕获算法在Matlab上进行了对比。实验结果表明，基于FFT的快速捕获算法大大提高了运算速度，减少了捕获时间，捕获方法也得到改进。
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| 关 键 词： | GLONASS FFT 并行捕获 捕获算法 |
FFT-based Fast Acquisition Algorithms of GLONASS IF Signal |
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| YE Jiu-zhi,ZHU Gui-bin,LI Rui-rui,QUAN Peng.FFT-based Fast Acquisition Algorithms of GLONASS IF Signal[J].Modern Electronic Technique,2011,34(17):107-109,112. |
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| Authors: | YE Jiu-zhi ZHU Gui-bin LI Rui-rui QUAN Peng |
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| Affiliation: | YE Jiu-zhi,ZHU Gui-bin,LI Rui-rui,QUAN Peng(Image Communication Laboratory,Chongqing Communication Institute,Chongqing 400035,China) |
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| Abstract: | To improve the capture speed of GLONASS IF signal,according to the characteristics of GLONASS signal acquisition,a correlation operation was conducted by introducing the discrete Fourier transform and parallel capture was achieved.With the actually-acquisited GLONASS IF data,the traditional serial acquisition algorithm and FFT-based fast acquisition algorithm were compared with Matlab during the experiment.The experimental results show that FFT-based fast acquisition algorithm can improve the processing spe... |
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| Keywords: | GLONASS FFT parallel capture acquisition algorithm |
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