| 卫星导航信号捕获的一种高效相关算法 |
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| 引用本文： | 戴志春,刘文祥,封欣,孙广富.卫星导航信号捕获的一种高效相关算法[J].全球定位系统,2018,43(6):33-36. |
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| 作者姓名： | 戴志春 刘文祥 封欣 孙广富 |
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| 作者单位： | 1.国防科技大学 电子科学学院,湖南 长沙 410073 |
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| 摘 要： | 信号捕获的相关层实现在整个接收机的硬件资源中占据了重要的比重.为了能够降低量化损耗和减少相关层所需的硬件资源,论文提出了一种高效的相关算法.相比传统实现方法,论文所提算法能够将加法树所需硬件资源降低1／2,同时量化损耗减少约0.3 dB.该算法对卫星导航接收机的低成本和低功耗实现具有重要的参考价值.
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| 关 键 词： | 卫星导航 信号捕获 相关算法 |
A Novel Correlation Method with High Efficiency for GNSS Signal Acquisition |
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| Affiliation: | 1.School of Electronic Science and Engineering,National Univ. of Defense Technology, Changsha 410073, China2.32021 Troops of the PLA, Beijing 100094,? China |
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| Abstract: | The implementation of correlation layer in signal acquisition take up an important proportion of hardware resource in GNSS receivers. In order to reduce the quantization loss and used hardware resource, a novel correlation method with high efficiency is proposed. The resource of adder tree in acquisition module of proposed is half of traditional method, and the quantization loss is reduced by 0.3 dB, which could be used in GNSS receivers with low cost and power consumption demand. |
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