Antenna Group Delay Variation Bias Effect on Advanced RAIM
Abstract
This paper investigates the impact of the range error caused by the antenna group delay variations (noted as AGDV) on the advanced receiver autonomous integrity monitoring (ARAIM). The new multipath and AGDV error models for aviation use of new GPS and Galileo signals developed within the Dual Frequency Multipath Model for Aviation (DUFMAN) project and relevant AGDV measurements analyzed in DUFMAN [1], [2] are applied for the assessment of the impact. In this work, several approaches are taken to address the contribution of the AGDV error in the current ARAIM airborne algorithm: consideration of the user antenna bias error as a measurement bias term or as a random process sigma term. We performed ARAIM service volume simulations for Localizer Performance with Vertical guidance (LPV)-200 by applying the proposed error modeling methodologies and integrity support message (ISM) parameters in line with the current ARAIM framework. We compared availability performances as well as protection levels between the methods. It was found that 99.5% LPV-200 availability increased by approximately 5% when the newly derived DUFMAN multipath and AGDV error models were applied. On the other hand, despite the maximum improvement of roughly one meter in the vertical protection level, the AGDV effect considered as the bias term in the worst-case sense appears to be marginal to the ARAIM availability performance.
Authors 4
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Korea Advanced Institute of Science and Technology · Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR) · Gheorghe Asachi Technical University of Iași · Technical University of Munich · RWTH Aachen University
Affiliation as printed
(IKN) at the German Aerospace Center (DLR) in Oberpfaffenhofen, Germany
Aerospace Center (DLR) in Oberpfaffenhofen near Munich
Aerospace Engineering from Korea Advanced Institute of Science and Technology (KAIST), Republic of Korea, in 2017
Electrical Engineering and Information Technology at RWTH Aachen, Germany
German Aerospace Center (DLR), Germany
German Aerospace Center, in Oberpfaffenhofen near Munich
Technische Universität München (TUM) in 2007
graduated Computer Engineering at Technical University, Iasi, Romania in 2011
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Korea Advanced Institute of Science and Technology · Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR) · Gheorghe Asachi Technical University of Iași · Technical University of Munich · RWTH Aachen University
Affiliation as printed
(IKN) at the German Aerospace Center (DLR) in Oberpfaffenhofen, Germany
Aerospace Center (DLR) in Oberpfaffenhofen near Munich
Aerospace Engineering from Korea Advanced Institute of Science and Technology (KAIST), Republic of Korea, in 2017
Electrical Engineering and Information Technology at RWTH Aachen, Germany
German Aerospace Center (DLR), Germany
German Aerospace Center, in Oberpfaffenhofen near Munich
Technische Universität München (TUM) in 2007
graduated Computer Engineering at Technical University, Iasi, Romania in 2011
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Affiliation as printed
level Master in Satellite Navigation and Related Application at Politecnico di Torino, Italy in 2012
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Korea Advanced Institute of Science and Technology · Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR) · Gheorghe Asachi Technical University of Iași · Technical University of Munich · RWTH Aachen University
Affiliation as printed
(IKN) at the German Aerospace Center (DLR) in Oberpfaffenhofen, Germany
Aerospace Center (DLR) in Oberpfaffenhofen near Munich
Aerospace Engineering from Korea Advanced Institute of Science and Technology (KAIST), Republic of Korea, in 2017
Electrical Engineering and Information Technology at RWTH Aachen, Germany
German Aerospace Center (DLR), Germany
German Aerospace Center, in Oberpfaffenhofen near Munich
Technische Universität München (TUM) in 2007
graduated Computer Engineering at Technical University, Iasi, Romania in 2011
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