Global PPP-RTK Method Based on GRO and LRO

被引：0
|
作者：
Tian, Ye [1 ]
Wang, Weiwei [1 ]
Bian, Lang [1 ]
Meng, Yansong [1 ]
Zhang, Lixin [1 ]
机构：
[1] China Acad Space Technol, Xian 710000, Peoples R China
来源：
CHINA SATELLITE NAVIGATION CONFERENCE PROCEEDINGS, CSNC 2022, VOL III | 2022年 / 910卷
关键词：
GRO; LRO; Global PPP-RTK; Spatio-temporal resolution;
D O I：
10.1007/978-981-19-2576-4_16
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
The construction of global high-precision atmospheric delay model is the key and bottleneck problem for global PPP-RTK applications. In order to overcome the problems of large-scale construction of ground stations as well as difficulties in building stations at sea, a global PPP-RTK method based on GRO (GNSS Radio Occultation) and LRO (LEO Radio Occultation) is proposed. Firstly, the mathematical model of occultation events is studied, and then the number distribution and spatio-temporal resolution of GRO and LRO events are analyzed. The proposed LEO constellation can cover the area of 60 degrees S-60 degrees N in real time with the spatio-temporal resolution for GRO and LRO occultation events, and finally the PPP-RTK positioning is verified based on the atmospheric delay model of GRO and LRO, GNSS and GNSS+LEO convergence time are reduced by 58% and 46%, respectively compared with the PPP positioning.
引用
收藏
页码：183 / 197
页数：15
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