Fastening GPS and Galileo Tight with a Software Receiver

Javier Arribas, Mara Branzanti, Carles Fernández-Prades, Pau Closas

Abstract:	This paper presents the design, implementation and performance analysis of a hybrid GPS/Galileo software receiver. The proposed approach exploits the dissemination of Galileo-to-GPS time conversion parameters through Galileo’s navigation message to mix pseudoranges of both constellations seamlessly, obtaining position fixes even with four satellites belonging to different systems. The approach is tested both with synthetically generated signals and with real-life signals using the four In-Orbit Validation Galileo satellites. The source code developed to produce this paper has been released under the General Public License, and it is freely available on the Internet.
Published in:	Proceedings of the 27th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2014) September 8 - 12, 2014 Tampa Convention Center Tampa, Florida
Pages:	1383 - 1395
Cite this article:	Arribas, Javier, Branzanti, Mara, Fernández-Prades, Carles, Closas, Pau, "Fastening GPS and Galileo Tight with a Software Receiver," Proceedings of the 27th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2014), Tampa, Florida, September 2014, pp. 1383-1395.
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