Concept for a Dual Frequency Dual Constellation GBAS

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.
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Michael Felux, Mihaela Simona Circiu, Boubeker Belabbas, Michael Meurer, Mirko Stanisak, et al.. Concept for a Dual Frequency Dual Constellation GBAS. ION GNSS+ 2015, 28th International Technical Meeting of The Satellite Division of the Institute of Navigation , Institute of Navigation, Sep 2015, Tampa, Florida, United States. pp 1519 - 1525. ⟨hal-01272779⟩

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