Review of GNSS precise orbit determination: status, challenges, and opportunities

被引：0
|
作者：
Li X. [1 ]
Zhang W. [1 ]
Yuan Y. [1 ]
Zhang K. [1 ]
Wu J. [1 ]
Lou J. [1 ]
Li J. [1 ]
Zheng H. [1 ]
机构：
[1] School of Geodesy and Geomatics, Wuhan University, Wuhan
来源：
Cehui Xuebao/Acta Geodaetica et Cartographica Sinica | 2022年 / 51卷 / 07期
基金：
中国国家自然科学基金;
关键词：
antenna phase center correction; attitude model; GNSS POD; ISL; LEO augmentation; orbit products; SRP;
D O I：
10.11947/j.AGCS.2022.20220173
中图分类号：
学科分类号：
摘要：
Precise orbit of GNSS satellites is the foundation and prerequisite of GNSS high-precision applications, and the technology of GNSS precise orbit determination (POD) has always been the research focus and hotspot in the field of satellite navigation. This paper firstly introduces the general situation of GNSS constellation and tracking data. The key issues in the construction of the function model, dynamic model and stochastic model in GNSS POD are sorted out. The research progress of GNSS precise orbit determination with the augmentation of low earth orbit (LEO) onboard data and inter satellite link (ISL) data is concluded. Then, from the application point of view, the basic status of current GNSS precision orbit products is summarized, followed by the orbit accuracy evaluation. Finally, the challenges of GNSS precise orbit determination in the rapid solution of massive GNSS network, the data fusion of multi-level observations, the refinement of solar radiation pressure (SRP) models, and the high-precision real-time POD are discussed. The opportunities brought by the development of LEO constellation, optical clock, and laser link in GNSS POD are also prospected. © 2022 SinoMaps Press. All rights reserved.
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页码：1271 / 1293
页数：22
相关论文
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