Caamano, Maria and Juan, José Miguel and Felux, Michael and Gerbeth, Daniel and González-Casado, Guillermo and Sanz, Jaume (2021) Network-based ionospheric gradient monitoring to support GBAS. Navigation, Journal of the Institute of Navigation. Wiley. doi: 10.1002/navi.411. ISSN 0028-1522.
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Official URL: https://onlinelibrary.wiley.com/doi/full/10.1002/navi.411
Abstract
Large ionospheric gradients acting between a Ground Based Augmentation System (GBAS) reference station and an aircraft on approach could lead to hazardous position errors if undetected. Current GBAS stations provide solutions against this threat that rely on the use of “worst‐case” conservative threat models, which could limit the availability of the system. This paper presents a methodology capable of detecting ionospheric gradients in real time and estimating the actual threat model parameters based on a network of dual‐frequency and multi‐constellation GNSS monitoring stations. First, we evaluate the performance of our algorithm with synthetic gradients that are simulated over the nominal measurements recorded by a reference network in Alaska. Afterwards, we also assess it with one real ionospheric gradient measured by the same network. Results with both simulated gradients and a real gradient show the potential to support GBAS by detecting and estimating these gradients instead of always using “worst‐case” models.
Item URL in elib: | https://elib.dlr.de/139434/ | ||||||||||||||||||||||||||||
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Document Type: | Article | ||||||||||||||||||||||||||||
Title: | Network-based ionospheric gradient monitoring to support GBAS | ||||||||||||||||||||||||||||
Authors: |
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Date: | 11 February 2021 | ||||||||||||||||||||||||||||
Journal or Publication Title: | Navigation, Journal of the Institute of Navigation | ||||||||||||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||||||||||||
Open Access: | Yes | ||||||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||||||||||||||
In ISI Web of Science: | Yes | ||||||||||||||||||||||||||||
DOI: | 10.1002/navi.411 | ||||||||||||||||||||||||||||
Publisher: | Wiley | ||||||||||||||||||||||||||||
ISSN: | 0028-1522 | ||||||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||||||
Keywords: | Ground Based Augmentation System (GBAS), Ionospheric gradients, Availability, Monitoring network | ||||||||||||||||||||||||||||
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: | 14 Dec 2020 14:08 | ||||||||||||||||||||||||||||
Last Modified: | 25 Apr 2023 13:20 |
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