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Ionospheric Gradient Threat Mitigation in Future Dual Frequency GBAS

Felux, Michael and Circiu, Mihaela-Simona and Lee, Jiyun and Holzapfel, Florian (2017) Ionospheric Gradient Threat Mitigation in Future Dual Frequency GBAS. International Journal of Aerospace Engineering, 2017. Hindawi Publishing Corporation. DOI: 10.1155/2017/4326018 ISSN 1687-5974

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Official URL: https://www.hindawi.com/journals/ijae/2017/4326018/


The Ground Based Augmentation System (GBAS) is a landing system for aircraft based on differential corrections for the signals of Global Navigation Satellite Systems (GNSS), such as GPS or Galileo. The main impact on the availability of current single frequency systems results from the necessary protection against ionospheric gradients. With the introduction of Galileo and the latest generation of GPS satellites, a second frequency is available for aeronautical navigation. Dual frequency methods allow forming of ionospheric free combinations of the signals, eliminating a large part of the ionospheric threats to GBAS. However, the combination of several signals increases the noise in the position solution and in the calculation of error bounds. We, therefore, developed a method to base positioning algorithms on single frequency measurements and use the second frequency only for monitoring purposes. In this paper, we describe a detailed derivation of the monitoring scheme and discuss its implications for the use in an aviation context.

Item URL in elib:https://elib.dlr.de/111584/
Document Type:Article
Title:Ionospheric Gradient Threat Mitigation in Future Dual Frequency GBAS
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Felux, MichaelMichael.Felux (at) dlr.dehttps://orcid.org/0000-0002-8368-4422
Circiu, Mihaela-SimonaMihaela-Simona.Circiu (at) dlr.dehttps://orcid.org/0000-0003-4430-0526
Lee, Jiyunkaisthttps://orcid.org/0000-0002-2291-3623
Holzapfel, Floriantechnische universität münchenhttps://orcid.org/0000-0003-4733-9186
Date:20 March 2017
Journal or Publication Title:International Journal of Aerospace Engineering
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
DOI :10.1155/2017/4326018
Publisher:Hindawi Publishing Corporation
Keywords:GBAS, Ionospheric Gradient, Dual Frequency GBAS, Landing of Aircraft
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:air traffic management and operations
DLR - Research area:Aeronautics
DLR - Program:L AO - Air Traffic Management and Operation
DLR - Research theme (Project):L - Communication, Navigation and Surveillance
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Navigation
Deposited By: Felux, Michael
Deposited On:23 Mar 2017 13:19
Last Modified:14 Dec 2019 04:27

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