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Future GBAS Processing - Do we need an ionosphere-free mode?

Felux, Michael and Circiu, Mihaela-Simona and Gerbeth, Daniel and Caamano, Maria (2017) Future GBAS Processing - Do we need an ionosphere-free mode? In: Proceedings of the ISGNSS 2017. Intenational Symposium on GNSS, 11.-13. Dez. 2017, Hongkong, China.

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Abstract

The Ground Based Augmentation System (GBAS) is a landing system for aircraft. It consists of carefully sited reference receivers at an airport, generating corrections for the navigation signals from Global Navigation Satellite Systems (GNSS). Along with the corrections, integrity parameters are generated and transmitted to arriving aircraft that allow the aviation users to bound their residual position errors after applying the corrections. Currently, corrections are generated for the GPS constellation and the L1 frequency. However, with the ongoing buildup of the European Galileo, the Chinese BeiDou and the modernized Russian Glonass the number of available GNSS constellations is increasing. This provides the opportunity to design systems more robust against disturbances, such as ionospheric scintillation effects, through a larger number of available ranging sources. Furthermore, all Galileo and the latest generation of GPS satellites feature signals in the L5 band that can be used by aviation. Therefore, it is possible to apply dual frequency techniques for mitigation of the ionospheric gradient threat. This paper discusses the advantages and disadvantages of using an ionosphere free combination of the signals for positioning and if such a mode for a future generation of GBAS should be developed.

Item URL in elib:https://elib.dlr.de/117741/
Document Type:Conference or Workshop Item (Speech)
Title:Future GBAS Processing - Do we need an ionosphere-free mode?
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Felux, Michaelmichael.felux (at) dlr.deUNSPECIFIED
Circiu, Mihaela-SimonaMihaela-Simona.Circiu (at) dlr.deUNSPECIFIED
Gerbeth, Danieldaniel.gerbeth (at) dlr.deUNSPECIFIED
Caamano, Mariamaria.caamanoalbuerne (at) dlr.deUNSPECIFIED
Date:December 2017
Journal or Publication Title:Proceedings of the ISGNSS 2017
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:GBAS, I-free, ionosphere free, dual frequency GBAS
Event Title:Intenational Symposium on GNSS
Event Location:Hongkong, China
Event Type:international Conference
Event Dates:11.-13. Dez. 2017
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:10 Jan 2018 16:31
Last Modified:31 Jul 2019 20:15

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