遮挡环境下GPS／GLONASS／Galileo组合PPP性能分析

田先才; 赵兴旺; 许妙强

doi:doi:10.13442/j.gnss.1008-9268.2018.06.002

遮挡环境下GPS／GLONASS／Galileo组合PPP性能分析

doi: doi:10.13442/j.gnss.1008-9268.2018.06.002

安徽理工大学测绘学院,安徽淮南 232001

详细信息

作者简介:
田先才(1994-),男,硕士研究生,主要研究方向为GNSS原理与应用.

通讯作者:
田先才 E-mail:1300369646@qq.com

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出版历程
- 刊出日期: 2018-12-15

Performance Analysis Joint of GPS／GLONASS／Galileo Precise Point Positioning Under Occlusion Condition

(School of Surveying and Mapping, Anhui University of Science and Technology,Huainan 232001,China)

摘要

摘要: 对于城市遮挡环境下单GPS系统精密单点定位(PPP)性能较差的问题,本文采用多系统融合来改善PPP性能,通过不同卫星高度角,将城市四周环境分为正常环境、一般遮挡、较重遮挡等三种环境.分别采用GPS、GPS／GLONASS、GPS／Galileo、GPS／GLONASS／Galileo不同的模式,对香港4个连续运行参考站进行遮挡环境下的静态PPP模拟实验,结果表明:多系统组合能够有效弥补城市四周遮挡环境下卫星的不足,并且GPS／GLONASS、GPS／Galileo、GPS／GLONASS／Galileo组合相对单GPS系统下的PPP性能有着不同程度的改善.
- GNSS /
- PPP /
- 精度 /
- 收敛时间 /
- 遮挡环境
Abstract: For poor precision single point positioning performance of single GPS system under Occlusion Condition,to improve performance of precision single point positioning cross multisystem in this paper, By setting different Elevation mask angle, the environment around the city is divided into normal environment, general occlusion and heavy occlusion. Using GPS, GPS／GLONASS, GPS／Galileo, GPS／GLONASS／Galileo different modes respectively, the static PPP simulation experiments were carried out on four continuously operating reference stations in hong kong under the environment. the results show that multisystem combination can effectively remedy the shortage of satellites in the occlusion environment around the city, and the PPP performance of GPS／GLONASS, GPS／Galileo, GPS／GLONASS／Galileo combination is improved to varying degrees compared with that of a single GPS system.
- GNSS /
- precise point positioning /
- accuracy /
- convergence time /
- occlusion condition

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参考文献(11)

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