GNSS Performance Characterization Framework

P. Crosta, R. Sarnadas, J. Clua, M. Solé, R. Romero, L. Tavira, G. Seco-Granados, and A. Tripiana

Abstract:	With the advent of new constellations, signals and frequencies, the reference stations are expected to face a major evolution by incorporating multi-frequency capabilities and adopting the multi-constellation concept, while including also more demanding requirements in terms of robustness against signal deformations, spoofing, multipath and interferences. This opens a clear business opportunity for a new generation of reference stations needed to comply with the new scenario of GNSS navigation programs. The European Geostationary Navigation Overlay Service (EGNOS) is Europe’s regional Satellite-Based Augmentation System (SBAS) that is used to improve the performance of GNSS such as GPS and Galileo. EGNOS will experiment a major evolution by 2020, EGNOS V3, including the fulfilment of the SBAS L1/L5 standard, expansion to dual-frequency and evolution towards a multi-constellation concept. The Ranging Integrity Monitoring Stations (RIMS) are expected to incorporate modernizing features such as: • Tracking of Galileo Constellation (in addition to the current ones, GPS and GLONASS). • Incorporation of additional frequencies (GPS L5 / L2C and Galileo E5a). • Signal processing capabilities (such as integrated signal quality monitoring and in particular evil waveform detection using a multi-correlator architecture). • Advanced built-in robustness and security functions: Robust tracking algorithms, detection/mitigation of interferences and antispoofing/jamming techniques In this context, ESA awarded the consortium Indra and SPCOMNAV (a research group from the Universitat Autonoma de Barcelona – UAB) with a contract for the development of an advanced GNSS reference station breadboard (a.k.a. R3B) in the frame of the General Support Technology Program (GSTP 6.2) program.
Published in:	Proceedings of the 31st International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2018) September 24 - 28, 2018 Hyatt Regency Miami Miami, Florida
Pages:	1438 - 1454
Cite this article:	Crosta, P., Sarnadas, R., Clua, J., Solé, M., Romero, R., Tavira, L., Seco-Granados, G., Tripiana, A., "GNSS Performance Characterization Framework," Proceedings of the 31st International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2018), Miami, Florida, September 2018, pp. 1438-1454. https://doi.org/10.33012/2018.16051
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