GHASP: a Galileo HAS parser

Galileo High Accuracy Service (HAS) corrections are broadcast through the E6B signal using a high-parity vertical Reed-Solomon encoding scheme, which reduces message recovery time and improves transmission reliability. To recover HAS corrections, it is thus necessary to invert the encoding process a...

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Bibliographic Details
Published inGPS solutions Vol. 27; no. 4; p. 197
Main Authors Borio, D., Susi, M., Gioia, C.
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.10.2023
Springer Nature B.V
Subjects
Accuracy
Atmospheric Sciences
Automotive Engineering
Batch processing
Coding
Earth and Environmental Science
Earth Sciences
Electrical Engineering
Geophysics/Geodesy
GPS Toolbox
Parsers
Recovery time
Software
Space Exploration and Astronautics
Space Sciences (including Extraterrestrial Physics
User interface
High accuracy service
HAS
Galileo
Decoder
Corrections
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Summary:Galileo High Accuracy Service (HAS) corrections are broadcast through the E6B signal using a high-parity vertical Reed-Solomon encoding scheme, which reduces message recovery time and improves transmission reliability. To recover HAS corrections, it is thus necessary to invert the encoding process and interpret the decoded bits. In order to foster HAS adoption and facilitate experimentation with HAS corrections, a Galileo HAS Parser (GHASP) has been developed. GHASP is available open-source and supports different input data types from different receiver manufacturers. Decoded corrections are provided in Comma-Separated Values files, which can be directly loaded using common data-science languages. In this way, corrections are readily available and can be used not only for Precise Point Positioning (PPP) applications but also for scientific analysis such as clock characterization using the Allan Deviation.
ISSN:1080-5370
1521-1886
DOI:10.1007/s10291-023-01529-y