Assessing the High-Accuracy Service at High Latitudes

The Galileo High-Accuracy Service (HAS) was declared operational (initial service) in January 2023 after an intense testing phase aimed at assessing its service performance through the transmission of live HAS corrections. The HAS performance at high latitudes is evaluated by analyzing data collecte...

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Bibliographic Details
Published in:ENC 2023
Main Authors: Melania Susi, Daniele Borio, Althaf Azeez, Jihye Park, Kinga Wezka, Ignacio Fernandez-Hernandez
Format: Article in Journal/Newspaper
Language:English
Published: MDPI AG 2023
Subjects:
Galileo High-Accuracy Service
HAS
Precise Point Positioning
PPP
high latitudes
ionospheric scintillation
Engineering machinery
tools
and implements
TA213-215
Svalbard
Svalbard Archipelago
Hornsund
Online Access:https://doi.org/10.3390/ENC2023-15421
https://doaj.org/article/2a8f2660a08c4383a1f1028c7b59d669
Description
Summary:The Galileo High-Accuracy Service (HAS) was declared operational (initial service) in January 2023 after an intense testing phase aimed at assessing its service performance through the transmission of live HAS corrections. The HAS performance at high latitudes is evaluated by analyzing data collected at the Polish Polar Station located in Hornsund, in the Norwegian Svalbard archipelago. At such a location, the reception conditions can be affected by poor satellite geometries and ionospheric scintillation may degrade the signal quality. In this respect, data affected by scintillation events were identified and used for the performance analysis. The assessment is carried out by comparing the HAS corrections with the International GNSS Service (IGS) precise products. Moreover, the retrieved HAS corrections are used to assess the Precise Point Positioning (PPP) performance.

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