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Ionospheric Monitoring in a Dual Frequency GBAS

Felux, Michael and Circiu, Mihaela-Simona and Gerbeth, Daniel and Caamano, Maria and Stanisak, Mirko (2016) Ionospheric Monitoring in a Dual Frequency GBAS. In: Proceedings of the IEEE Aerospace Conference 2016. IEEE Aerospace Conference, 2016-03-06 - 2016-03-11, Big Sky, MT, USA. doi: 10.1109/AERO.2016.7500884.

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This paper proposes a method for monitoring the difference in the ionosphere between a GBAS ground station and an airborne user from single frequency L1/E1 corrections and single frequency L5/E5a corrections. The absolute ionospheric delay at the ground station cannot be estimated from the corrections only. Therefore, the monitored test statistic is the difference of an ionospheric delay estimate at the airborne system and a similar pseudo-ionospheric delay estimation from the single frequency corrections from the ground station. In order to make the two estimates comparable the common part of the airborne ionospheric delay has to be removed. This test is affected by noise and multipath from the airborne measurements and from the ground corrections. Based on airworthiness performance requirements a monitoring threshold per satellite is derived. The decision then enables the airborne equipment to either exclude individual satellites from the single frequency processing or trigger a switch to an ionospheric free dual frequency processing.

Item URL in elib:https://elib.dlr.de/103907/
Document Type:Conference or Workshop Item (Speech)
Title:Ionospheric Monitoring in a Dual Frequency GBAS
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Felux, MichaelUNSPECIFIEDhttps://orcid.org/0000-0002-8368-4422UNSPECIFIED
Gerbeth, DanielUNSPECIFIEDhttps://orcid.org/0000-0002-7495-7361133728707
Date:March 2016
Journal or Publication Title:Proceedings of the IEEE Aerospace Conference 2016
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:GBAS, Ionospheric Monitoring
Event Title:IEEE Aerospace Conference
Event Location:Big Sky, MT, USA
Event Type:international Conference
Event Start Date:6 March 2016
Event End Date:11 March 2016
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 (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Navigation
Deposited By: Felux, Michael
Deposited On:26 Apr 2016 18:00
Last Modified:24 Apr 2024 20:09

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