GNSS Multi-System Integrity Algorithm Definition and Evaluation

Paolo D'Angelo and Antonio Fernandez

Abstract:	Integrity is a key issue in satellite navigation for safetyof- life applications. An optimum combination of the different GNSS systems to maximize the receiver’s integrity is necessary to provide the user the required capabilities. In the frame of the GJU 2nd call, the GIRASOLE contract, lead by Alcatel Alenia Space Italia, is developing the Safety-of-life (SoL) Galileo receiver. DEIMOS Space is in charge of the development of multisystem integrity algorithms, in a core technology investigation lead by CNIT (Consorzio Nazionale Interuniversitario per le Telecomunicazioni). This paper presents a new algorithm that establishes a link between two generations of GNSS, defining the approach for combining different integrity monitoring schemes. Both Galileo and EGNOS are taken into account for defining the new GNSS integrity concept. The algorithm is completed with a RAIM (Receiver Autonomous Integrity Monitoring) scheme, implemented with the function of cross-checker.
Published in:	Proceedings of the 20th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2007) September 25 - 28, 2007 Fort Worth Convention Center Fort Worth, TX
Pages:	3057 - 3063
Cite this article:	D'Angelo, Paolo, Fernandez, Antonio, "GNSS Multi-System Integrity Algorithm Definition and Evaluation," Proceedings of the 20th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2007), Fort Worth, TX, September 2007, pp. 3057-3063.
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