Galileo High Accuracy Service (HAS) Algorithm and Receiver Development and Testing
Pedro Pintor, Emilio J. González, Ana Senado, Philipp Bohlig, Andreas Sperl, Patrick Henkel, Javier Simón, Carmelo Hernández, Javier de Blas, Juan Vázquez
Abstract
The Galileo High Accuracy Service (HAS) will provide free of charge high accuracy corrections aiming to achieve Precise Point Positioning (PPP) in real time through the Galileo signal (E6-B) and by terrestrial means (Internet). The HAS will comprise two services levels; Service Level 1 (SL1) with global coverage providing high accuracy corrections (orbits, clocks) and biases (code and phase) for Galileo E1/E5b/E5a/E6 and E5AltBOC and GPS L1/L5/L2 signals. Service Level 2 (SL2) with regional coverage providing SL1 corrections plus atmospheric (at least ionospheric) corrections and potential additional biases. Within this context, the Galileo High Accuracy Reference Algorithm for SL1 and User Terminal (HAUT) project was awarded by the European Union Agency for the Space Programme (EUSPA) to Spaceopal GmbH and its partners ANavS GmbH, DLR IKN, IABG mbH and Iguassu Software Systems. In April 2022 and only after one-year development, the project achieved its Acceptance Review and delivered a Galileo HAS User Terminal capable to work with corrections from the Galileo HAS signal (E6-B) and terrestrial means. In this article, highlights on the User Algorithm and User Terminal are presented. Performance results using corrections and products generated by the Galileo HAS infrastructure and IGS are introduced.