Concept for a Dual Frequency Dual Constellation GBAS

Michael Felux, Mihaela-Simona Circiu, Boubeker Belabbas, Michael Meurer, Mirko Stanisak, Carl Milner, Yiping Jiang, Alize Guilbert, Andreas Lipp

Abstract:	This paper proposes one possible concept for a dual frequency dual constellation GBAS architecture. It is based on a single frequency L5/E5a mode as primary processing scheme for best standard performance, a switch to an ionosphere free combination in case of ionospheric disturbances and supporting also classical GBAS approach service types (GAST) C and D for single frequency GPS-based CAT I and CAT II/III modes. The concept is supported by a proposal of how to transmit the required corrections in the existing capacity limited VDB broadcast and is backwards compatible to legacy GBAS. A discussion about the benefits and remaining issues of the proposed architecture concludes the paper.
Published in:	Proceedings of the 28th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2015) September 14 - 18, 2015 Tampa Convention Center Tampa, Florida
Pages:	1519 - 1525
Cite this article:	Felux, Michael, Circiu, Mihaela-Simona, Belabbas, Boubeker, Meurer, Michael, Stanisak, Mirko, Milner, Carl, Jiang, Yiping, Guilbert, Alize, Lipp, Andreas, "Concept for a Dual Frequency Dual Constellation GBAS," Proceedings of the 28th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2015), Tampa, Florida, September 2015, pp. 1519-1525.
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