| GPS基带信号捕获算法及其仿真研究 |
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| 引用本文： | 刘毓,邹星.GPS基带信号捕获算法及其仿真研究[J].小型微型计算机系统,2011,32(6). |
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| 作者姓名： | 刘毓 邹星 |
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| 作者单位： | 重庆三峡学院物理与电子工程学院,重庆,404000 |
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| 摘 要： | 针对低信噪比环境下的导航需要,介绍了低信噪比环境下的GPS基带信号捕获算法,对基于循环相关的GPS基带信号捕获算法的信号处理流程以及捕获性能进行了分析.通过特定的硬件装置获得了真实的GPS数据,利用Matlab对该捕获算法进行了计算机仿真研究.根据理论分析和仿真结果可以看出,基于循环相关的GPS基带信号捕获算法能够检测低信噪比环境下的GPS信号,能够提高GPS接收机的检测灵敏度.
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| 关 键 词： | GPS 信号捕获 基带 循环相关 |
Study on Simulation Based on GPS Base Band Signals Acquisition Algorithm |
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| LIU Yu,ZOU Xing.Study on Simulation Based on GPS Base Band Signals Acquisition Algorithm[J].Mini-micro Systems,2011,32(6). |
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| Authors: | LIU Yu ZOU Xing |
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| Affiliation: | LIU Yu,ZOU Xing (Department of Electronic Engineering,Chongqing Three Gorges University,Chongqing 404000,China) |
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| Abstract: | Aiming at navigation needs in low signal to noise ratio environment,GPS base band signals acquisition algorithm in low signal to noise ratio environment is introduced,signals process flow and acquisition performance of algorithm based on circular correlation are studied in detail.The real GPS data is obtained by means of the special equipment,the acquisition algorithm is simulated using matlab.It can be seen from theoretical analysis and simulation that GPS base band signals acquisition algorithm based on c... |
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| Keywords: | GPS signals acquisition base band circular correlation |
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