New Developments for the user Integrity Processing with Galileo Implementation and Testing of Galileo user Integrity Algorithms

F. Amarillo, P. D'Angelo

Abstract:	This paper describes an alternative methodology for the estimation of an upper-bound of the integrity risk at user level, in faulty condition, which is typically by far below the integrity risk bounds proposed up to now. The developed methodology allows, for given performance targets, relaxing either the required “Real Time Integrity Monitoring Accuracy“, or the satellite integrity failure probability or both. The new algorithm is based on introducing the probability of missed-detection of the Ground Integrity Channel (GIC) in the estimation of the integrity risk at user domain. This methodology has been compared against the one proposed for the Galileo Test User Receiver (TUR); being the comparison done at maximum (over time) and mean (over time) of the integrity risk upper bound, in faulty conditions, and for each geographical location in a dense global grid. The paper describes first the equations for computing the probability of missed detection of the “Single SIS” feared event, second the equations for computing the probability of impact of the “Single SIS” feared event, and finally the overall evaluation of the integrity risk bound.
Published in:	Proceedings of the 22nd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2009) September 22 - 25, 2009 Savannah International Convention Center Savannah, GA
Pages:	2775 - 2782
Cite this article:	Amarillo, F., D'Angelo, P., "New Developments for the user Integrity Processing with Galileo Implementation and Testing of Galileo user Integrity Algorithms," Proceedings of the 22nd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2009), Savannah, GA, September 2009, pp. 2775-2782.
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In