Parameters estimation and applications from single- to five-frequency multi-GNSS precise point positioning

被引：0

作者：

Jin S. ^{[1
,2
]}

Wang Q. ^{[3
]}

Shi Q. ^{[2
]}

机构：

[1] School of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozuo

[2] Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai

[3] School of Civil Engineering, Xiangtan University, Xiangtan

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：

earthquake monitoring; GNSS; ionosphere; meteorology; precise point positioning;

D O I：

10.11947/j.AGCS.2022.20220129

中图分类号：

学科分类号：

摘要：

Global navigation satellite system (GNSS) has been developed into the era of multi-frequency multi-GNSS, particularly four global navigation satellite systems including China's BeiDou navigation satellite system (BDS) with broadcasting more than ten frequencies of all-day and all-time observation information about pseudo-range, phase and Doppler. Multi-frequency multi-GNSS provides users more observations with more combination choices and new opportunities for the applications of precise positioning, navigation and timing (PNT), such as high precision location-based services, geodesy, space weather and disaster monitoring. However, the multi-frequency and multi-GNSS brings numerous questions and challenges, e.g. the combination models and system bias of GNSS precise point positioning (PPP) as well as atmospheric delay estimation. This paper presents multi-GNSS PPP models from single- to five-frequency observations. The PPP performance, receiver clock difference, tropospheric delay, satellite and receiver hardware delay, and inter-frequency bias are estimated and assessed from single- to five-frequency multi-GNSS observations. The latest advances on GNSS PPP applications are presented, including GNSS meteorology, ionospheric modeling, time-frequency transfer, structure health and earthquake monitoring as well as their related applications. The results show that the multi-frequency multi-GNSS has greatly improved the accuracy and reliability of PPP in parameters estimation, which has an important application value. Finally, the application prospective and outlook of multi-frequency multi-GNSS PPP are given and discussed. © 2022 SinoMaps Press. All rights reserved.

引用

页码：1239 / 1248

页数：9

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