Haroldo Antonio Marques
Accuracy assessment of Precise Point Positioning with multi-constellation GNSS data under ionospheric scintillation effects
Marques, Haroldo Antonio; Marques, Heloisa Alves Silva; Aquino, Marcio; Vadakke Veettil, Sreeja
Authors
Heloisa Alves Silva Marques
Marcio Aquino
Sreeja Vadakke Veettil
Abstract
GPS and GLONASS are currently the Global Navigation Satellite Systems (GNSS) with full 16 operational capacity. The integration of GPS, GLONASS and future GNSS constellations can 17 provide better accuracy and more reliability in geodetic positioning, in particular for kinematic 18 Precise Point Positioning (PPP), where the satellite geometry is considered a limiting factor to 19 achieve centimeter accuracy. The satellite geometry can change suddenly in kinematic 20 positioning in urban areas or under conditions of strong atmospheric effects such as for instance 21 ionospheric scintillation that may degrade satellite signal quality, causing cycle slips and even 22 loss of lock. Scintillation is caused by small scale irregularities in the ionosphere and is 23 characterized by rapid changes in amplitude and phase of the signal, which are more severe in 24 equatorial and high latitudes geomagnetic regions. In this work, geodetic positioning through the 25 PPP method was evaluated with integrated GPS and GLONASS data collected in the equatorial 26 region under varied scintillation conditions. The GNSS data were processed in kinematic PPP 27 mode and the analyses show accuracy improvements of up to 60% under conditions of strong 28 scintillation when using multi-constellation data instead of GPS data alone. The concepts and 29 analyses related to the ionospheric scintillation effects, the mathematical model involved in PPP 30 with GPS and GLONASS data integration as well as accuracy assessment with data collected 31 under ionospheric scintillation effects are presented.
Citation
Marques, H. A., Marques, H. A. S., Aquino, M., & Vadakke Veettil, S. (in press). Accuracy assessment of Precise Point Positioning with multi-constellation GNSS data under ionospheric scintillation effects. Journal of Space Weather and Space Climate, 8, Article A15. https://doi.org/10.1051/swsc/2017043
Journal Article Type | Article |
---|---|
Acceptance Date | Dec 6, 2017 |
Online Publication Date | Feb 20, 2018 |
Deposit Date | Jan 16, 2018 |
Publicly Available Date | Mar 28, 2024 |
Journal | Journal of Space Weather and Space Climate |
Electronic ISSN | 2115-7251 |
Publisher | EDP Open |
Peer Reviewed | Peer Reviewed |
Volume | 8 |
Article Number | A15 |
DOI | https://doi.org/10.1051/swsc/2017043 |
Keywords | Ionospheric Scintillation; Precise Point Positioning; GNSS data integration |
Public URL | https://nottingham-repository.worktribe.com/output/912541 |
Publisher URL | https://www.swsc-journal.org/articles/swsc/abs/2018/01/swsc170013/swsc170013.html |
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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0
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