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Multi-constellation GBAS: how to benefit from a second constellation

Caamano, Maria and Felux, Michael and Circiu, Mihaela-Simona and Gerbeth, Daniel (2016) Multi-constellation GBAS: how to benefit from a second constellation. In: 2016 IEEE/ION Position, Location and Navigation Symposium - PLANS 2016. IEEE/ION. ION PLANS 2016, 11-14 April 2016, Savannah, GA, USA.

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Official URL: http://ieeexplore.ieee.org/document/7479779/


In this paper we analyze and discuss the impact of ionospheric scintillations and multipath on the availability of the current single-frequency single-constellation Ground Based Augmentation System (GBAS). Scintillation effects, which usually occur around plasma bubbles, cause the receiver to lose lock of one or more satellites, leading to potentially unfavorable satellite geometries for an airborne user. We simulate different bubble dimensions and distinct locations of the bubble in the sky in order to illustrate that the use of a second constellation improves the performance of the system in terms of availability for the situations where the single constellation system is unavailable. Furthermore, we investigate the impact of multipath in the availability of the system. During the touch-down and rollout of the aircraft on the runway, multipath coming from ground reflections becomes important, especially for low elevation satellites producing large position errors. The results show that the use of a second constellation allows the removal of low elevation satellites from the position solution, which are typically strongly affected by multipath. Elevation masks of 10° or even 15° do not degrade the availability of the dual-constellation system in any of the scenarios considered.

Item URL in elib:https://elib.dlr.de/112825/
Document Type:Conference or Workshop Item (Speech)
Title:Multi-constellation GBAS: how to benefit from a second constellation
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Caamano, Mariamaria.caamanoalbuerne (at) dlr.deUNSPECIFIED
Felux, Michaelmichael.felux (at) dlr.deUNSPECIFIED
Circiu, Mihaela-SimonaMihaela-Simona.Circiu (at) dlr.deUNSPECIFIED
Gerbeth, Danieldaniel.gerbeth (at) dlr.deUNSPECIFIED
Journal or Publication Title:2016 IEEE/ION Position, Location and Navigation Symposium - PLANS 2016
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:plasma bubbles, multipath, availability
Event Title:ION PLANS 2016
Event Location:Savannah, GA, USA
Event Type:international Conference
Event Dates:11-14 April 2016
Organizer:Institute of Navigation
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: Caamano Albuerne, Maria
Deposited On:06 Jul 2017 17:34
Last Modified:31 Jul 2019 20:10

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