Continuity and Integrity Aspects of an Integrated GBAS/INS Navigation System

Meiko Steen, Thomas Feuerle, Ulf Bestmann, Mirko Stanisak, Peter Hecker

Abstract:	Ground Based Augmentation Systems (GBAS) CAT-I operations are almost certified for operational usage. The GBAS station assures the integrity of the signal in space for the defined service volume. For approaches equivalent to ILS CAT II and III operations it might be necessary to additional assure integrity on the airborne user level. One way to ensure the integrity on the user level is the hybridization with an inertial navigation system (INS) to enhance the ability of detecting faulty GNSS measurements and additional ensure the continuity of service in case of GNSS outages. To ensure continuity and integrity such an integrated system is currently developed within the german research project UniTaS IV which is lead by the Institute of Flight Guidance of the Technische Universität Braunschweig and founded by the Bundesministerium für Wirtschaft und Technologie (BMWi) administered by the Agency of Aeronautics of the DLR in Bonn (FKZ 50 NA 0734). This paper gives an overview of the first two implementation steps and flight trial results of this system.
Published in:	Proceedings of the 21st International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2008) September 16 - 19, 2008 Savannah International Convention Center Savannah, GA
Pages:	2920 - 2928
Cite this article:	Steen, Meiko, Feuerle, Thomas, Bestmann, Ulf, Stanisak, Mirko, Hecker, Peter, "Continuity and Integrity Aspects of an Integrated GBAS/INS Navigation System," Proceedings of the 21st International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2008), Savannah, GA, September 2008, pp. 2920-2928.
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