elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Datenschutz | Kontakt | English
Schriftgröße: [-] Text [+]

Using a Wide Area Receiver Network to Support GBAS Ionospheric Monitoring

Caamano, Maria und Gerbeth, Daniel und Felux, Michael und Circiu, Mihaela-Simona (2017) Using a Wide Area Receiver Network to Support GBAS Ionospheric Monitoring. In: Proceedings of 30th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2017. ION GNSS+ 2017, 2017-09-25 - 2017-09-29, Portland, USA. doi: 10.33012/2017.15319.

[img] PDF
785kB

Kurzfassung

Ionospheric anomalies, like ionospheric gradients, might produce a difference between the ionospheric error experienced by the Ground Based Augmentation System (GBAS) reference station and the aircraft on approach. This ionospheric delay difference could lead to position errors if undetected. For that reason, the GBAS Approach Service Types (GAST) C and D provide solutions against this threat, but the methods employed still face challenges. In the case of GAST C, the GBAS integrity parameters are inflated in order to exclude potentially usable satellite geometries that could produce unacceptably large position errors if affected by a worst case gradient. The GAST D concept contains a significant amount of monitors to cover different regions of the ionospheric threat space, which includes a combination of gradient sizes, directions and speeds. Both methodologies have a negative impact on the availability of the system, especially when trying to implement GAST C and D in regions with severe ionospheric behavior, i.e. equatorial regions, because of the exclusion of too many satellite geometries in the case of GAST C and a high rate of false alarms in GAST D. This paper proposes a real-time ionospheric monitoring approach that supports the already existing GAST C and D solutions without changing the overall integrity concept. The proposed concept is based on a multi-frequency multi-constellation receiver network external to the GBAS installation that provides real-time ionospheric information to the GBAS stations. A GAST C reference station could use this information to reduce the maximum gradient to consider in the inflation of the integrity parameters while a GAST D station could benefit from prior probabilities of appearance relaxing the monitoring thresholds and thus provoking less false alarms. The monitoring approach is first explained and then evaluated with simulated data. This data is constructed based on real measurements of noise and multipath taken with both Choke-ring and Multipath Limiting Antennas (MLAs), and models for the nominal ionospheric decorrelation. Simulation results show that a considerable reduction of the threat space that the remaining monitors in GAST C and D have to consider seems feasible. Furthermore, the main effects of the presence of high levels of noise and multipath in the measurements used are discussed.

elib-URL des Eintrags:https://elib.dlr.de/118962/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Using a Wide Area Receiver Network to Support GBAS Ionospheric Monitoring
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Caamano, Mariamaria.caamanoalbuerne (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Gerbeth, Danieldaniel.gerbeth (at) dlr.dehttps://orcid.org/0000-0002-7495-7361138874665
Felux, Michaelmichael.felux (at) dlr.dehttps://orcid.org/0000-0002-8368-4422NICHT SPEZIFIZIERT
Circiu, Mihaela-Simonamihaela-simona.circiu (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:2017
Erschienen in:Proceedings of 30th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2017
Referierte Publikation:Nein
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
DOI:10.33012/2017.15319
Status:veröffentlicht
Stichwörter:network, ionospheric monitoring, GBAS
Veranstaltungstitel:ION GNSS+ 2017
Veranstaltungsort:Portland, USA
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:25 September 2017
Veranstaltungsende:29 September 2017
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Luftverkehrsmanagement und Flugbetrieb
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AO - Air Traffic Management and Operation
DLR - Teilgebiet (Projekt, Vorhaben):L - Kommunikation, Navigation und Überwachung (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Kommunikation und Navigation > Navigation
Hinterlegt von: Caamano Albuerne, Maria
Hinterlegt am:14 Feb 2018 15:30
Letzte Änderung:24 Apr 2024 20:23

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Blättern
Suchen
Hilfe & Kontakt
Informationen
electronic library verwendet EPrints 3.3.12
Gestaltung Webseite und Datenbank: Copyright © Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.