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Cited by 131GNSS positioning and interferenceSpace Satellite Systems and ControlStatistical and numerical algorithms

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LEO Enhanced Global Navigation Satellite System (LeGNSS): progress, opportunities, and challenges

Open access
Ge, Haibo, Li, Bofeng, Jia, Song, Nie, Liangwei, Wu, Tianhao, Yang, Zhe, Shang, Jingzhe, Zheng, Yanning, Ge, Maorong·2022·Geo-spatial Information Science
DOI 10.1080/10095020.2021.1978277
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Abstract

With the completion of Chinese BeiDou Navigation Satellite System (BDS), the world has begun to enjoy the Positioning, Navigation, and Timing (PNT) services of four Global Navigation Satellite Systems (GNSS). In order to improve the GNSS performance and expand its applications, Low Earth Orbit (LEO) Enhanced Global Navigation Satellite System (LeGNSS) is being vigorously advocated. Combined with high-, medium-, and low- earth orbit satellites, it can improve GNSS performance in terms of orbit determination, Precise Point Positioning (PPP) convergence time, etc. This paper comprehensively reviews the current status of LeGNSS, focusing on analyzing its advantages and challenges for precise orbit and clock determination, PPP convergence, earth rotation parameter estimation, and global ionosphere modeling. Thanks to the fast geometric change brought by LEO satellites, LeGNSS is expected to fundamentally solve the problem of the long convergence time of PPP without any augmentation. The convergence time can be shortened within 1 minute if appropriate LEO constellations are deployed. However, there are still some issues to overcome, such as the optimization of LEO constellation as well as the real time LEO precise orbit and clock determination.

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Metadata

Authors
Ge, H., Li, B., Jia, S., Nie, L., Wu, T., Yang, Z., Shang, J., Zheng, Y., & Ge, M.
Affiliations
  • Tongji University (CN)
  • GFZ Helmholtz Centre for Geosciences (DE)
Corresponding author
Li, Bofeng
ORCID
Venue
Geo-spatial Information Science
Publisher
Informa UK Limited
Published
2021-10-22
Volume
25
Issue
1
Pages
1-13
ISSN
  • 1009-5020 (ISSN-L)
  • 1993-5153
DOI
10.1080/10095020.2021.1978277
OpenAlex
W3209784341
Cited by
131
References
1
Citations by year
2026: 28 · 2025: 32 · 2024: 37 · 2023: 22 · 2022: 12
FWCI
9.17
Type
journal article
Language
en
Open access
Licence
Locations
  • Geo-spatial Information Science (publishedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Publication Database GFZ (GFZ German Research Centre for Geosciences) (submittedVersion, other-oa)
  • Publication Database GFZ (GFZ German Research Centre for Geosciences) (submittedVersion, cc-by)
Funders
  • National Natural Science Funds of China (41874030, 42074026)
  • Natural Science Funds of Shanghai (21ZR1465600)
  • Program of Shanghai Academic Research Leader (20XD1423800)
  • Innovation Program of Shanghai Municipal Education Commission
  • “Shuguang Program” supported by Shanghai Education Development Foundation and Shanghai Municipal Education Commission (20SG18)
  • Scientific and Technological Innovation Plan from Shanghai Science and Technology Committee (20511103302)
Topics
  • Physical Sciences › Engineering › Aerospace Engineering › GNSS positioning and interference
  • Physical Sciences › Engineering › Aerospace Engineering › Space Satellite Systems and Control
  • Physical Sciences › Mathematics › Applied Mathematics › Statistical and numerical algorithms
Keywords
low Earth orbit satellites, GNSS augmentation, BeiDou Navigation Satellite System, precise orbit determination, PPP convergence time, positioning, navigation and timing

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