Funded by European Commission DG-DEFIS, the National Land Survey of Finland (NLS) distributes and share under the European Union Public Licence the HASlib program, an open-source software package intended to facilitate the implementation of the Galileo High Accuracy Service (HAS).
Galileo, which operates a Global Navigation Satellite System (GNSS), communicates data enabling the determination of horizontal positions on the earth ground with an accuracy up to 0,2 meter (20 cm). However, obtaining HAS requires complex calculations for the correction of GNSS data such as the uncertainty in the satellite orbit predictions.
This is the role of the HASlib solution that process correction data and convert it in standard formats. HASlib is available for download at the GitHub platform.
More information: https://www.maanmittauslaitos.fi/en/haslib