Preparation for GBAS at Braunschweig Research Airport - First Flight Test Results

P. Hecker, P. Schachtebeck, T. Feuerle, and U. Bestmann

Abstract:	Global Navigation Satellite Systems (GNSS) are becoming an integral part of the navigation infrastructure available to civil aviation. The Ground Based Augmentation System (GBAS) is an augmentation system and is designed to support precision approach operations. It is planned to install a GBAS Ground Segment at the Braunschweig Research Airport. Further intentions are to develop a better understanding of the services that GBAS can provide for advanced operations. To gain a better insight of the inner processes of a GBAS ground segment, the Institute of Flight Guidance (IFF) of the Technical University of Braunschweig is performing preparatory work, including flight tests. In order to simulate the processing, several reference receivers are installed in locations at the Braunschweig Research Airport and data has been recorded. Using the relevant ILS installation and flight calibration data, an equivalent GBAS final segment has been defined. In order to obtain the GBAS message types for pseudorange corrections and final approach segment data blocks, the PEGASUS software developed by EUROCONTROL has been used to simulate the processing steps which have to be performed inside a GBAS ground segment. Flight trials have been executed using a multimode receiver onboard the research aircraft of the Technical University, performing ILS approaches at Braunschweig Research Airport. The deviations displayed for the pilot from these flight trials have been recorded for later analysis. In this paper, first results of these ILS flight trials and the resulting GBAS analyses will be presented.
Published in:	Proceedings of the 2006 National Technical Meeting of The Institute of Navigation January 18 - 20, 2006 Hyatt Regency Hotel Monterey, CA
Pages:	726 - 734
Cite this article:	Hecker, P., Schachtebeck, P., Feuerle, T., Bestmann, U., "Preparation for GBAS at Braunschweig Research Airport - First Flight Test Results," Proceedings of the 2006 National Technical Meeting of The Institute of Navigation, Monterey, CA, January 2006, pp. 726-734.
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