BDSBAS和WAAS增强定位性能评估

Evaluation of enhanced positioning performance of BDSBAS and WAAS

刘京慧 ¹王献中 ¹李丽媛 ¹王亮亮 ¹温丽芳¹

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作者信息

1. 和芯星通科技(北京)有限公司,北京 100094
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摘要

针对星基增强系统(SBAS)播发的单频增强服务电文一般仅用于增强单频定位的问题,提出一种使用单频增强电文增强双频定位的方法,推导利用单频增强信息增强单频和双频标准单点定位(SPP)的数学模型,并进一步分析北斗星基增强系统(BDSBAS)和广域增强系统(WAAS)增强性能,结果表明,使用BDSBAS和WAAS单频增强信息增强全球定位系统(GPS)L1C/A单频SPP时三维定位精度分别提升25％～50％、45％～70％,增强L1C/A+L2P双频SPP时三维定位精度分别提升10％～40％、10％～50％.

Abstract

Aiming at the problem that the single-frequency augmentation message broadcasted by the satellite-based augmentation system (SBAS) is generally used to enhance the single-frequency positioning, the paper proposed a method of using single-frequency augmentation message to enhance dual-frequency positioning, and derived the mathematical models of using the single-frequency augmentation information to enhance the single-frequency and dual-frequency standard point positioning (SPP) , and furtherly analyzed the enhanced performances of the BeiDou satellite based augmentation system (BDSBAS) and the wide area augmentation system (WAAS) .Results showed that when using BDSBAS and WAAS single-frequency augmentation information to enhance SPP, the three-dimensional accuracy of global positioning system (GPS) L1C/A single-frequency positioning would be improved by 25％～50％ and 45％～70％ respectively, and the three-dimensional accuracy of GPS L1C/A + L2P dual-frequency positioning would be improved by 10％～40％ and 10％～50％ respectively.

关键词

北斗星基增强系统(BDSBAS)/广域增强系统(WAAS)/单频增强信息/单频定位/双频定位

Key words

BeiDou satellite based augmentation system (BDSBAS)/wide area augmentation system (WAAS)/single-frequency augmentation information/single-frequency positioning/dual-frequency positioning

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出版年

2024

导航定位学报

CSTPCDCSCD北大核心

影响因子：0.72

ISSN：

参考文献量10

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