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An Alternative Ionospheric Correction Model for Global Navigation Satellite Systems

Hoque, M. M. und Jakowski, N. (2014) An Alternative Ionospheric Correction Model for Global Navigation Satellite Systems. Journal of Geodesy. Springer. doi: 10.1007/s00190-014-0783-z. ISSN 0949-7714.

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Kurzfassung

The ionosphere is recognized as a major error source for single frequency operations of Global Navigation Satellite Systems (GNSS). To enhance single frequency operations the Global Positioning System (GPS) uses an Ionospheric Correction Algorithm (ICA) driven by 8 coefficients broadcasted in the navigation message every 24 hours. Similarly the global navigation satellite system Galileo uses the electron density NeQuick model for ionospheric correction. The Galileo Satellite Vehicles (SVs) transmit 3 ionospheric correction coefficients as driver parameters of the NeQuick model. In the present work, we propose an alternative ionospheric correction algorithm called Neustrelitz TEC broadcast model NTCM-BC that is also applicable for global satellite navigation systems. Like the GPS ICA or Galileo NeQuick, the NTCM-BC can be optimized on a daily basis by utilizing GNSS data obtained at the previous day at monitor stations. To drive the NTCM-BC, 9 ionospheric correction coefficients need to be uploaded to the SVs for broadcasting in the navigation message. Our investigation using GPS data of about 200 worldwide ground stations shows that the 24 hour ahead prediction performance of the NTCM-BC is better than the GPS ICA and comparable to the Galileo NeQuick model. We have found that the 95 percentiles of the prediction error are about 16.1, 16.1 and 13.4 TECU for the GPS ICA, Galileo NeQuick and NTCM-BC, respectively, during a selected quiet ionospheric period whereas the corresponding numbers are found about 40.5, 28.2 and 26.5 TECU during a selected geomagnetic perturbed period. However, in terms of complexity the NTCM-BC is easier to handle than the Galileo NeQuick and in this respect comparable to the GPS ICA.

elib-URL des Eintrags:https://elib.dlr.de/93293/
Dokumentart:Zeitschriftenbeitrag
Titel:An Alternative Ionospheric Correction Model for Global Navigation Satellite Systems
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Hoque, M. M.mainul.hoque (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Jakowski, N.norbert.jakowski (at) dlr.dehttps://orcid.org/0000-0003-3174-2624NICHT SPEZIFIZIERT
Datum:2014
Erschienen in:Journal of Geodesy
Referierte Publikation:Ja
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
DOI:10.1007/s00190-014-0783-z
Verlag:Springer
ISSN:0949-7714
Status:veröffentlicht
Stichwörter:single frequency, ionosphere delay correction, broacast model NTCM-BC, GNSS
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Kommunikation und Navigation
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R KN - Kommunikation und Navigation
DLR - Teilgebiet (Projekt, Vorhaben):R - Vorhaben Ionosphäre (alt)
Standort: Neustrelitz
Institute & Einrichtungen:Institut für Kommunikation und Navigation > Navigation
Hinterlegt von: Hoque, Mohammed Mainul
Hinterlegt am:09 Dez 2014 09:14
Letzte Änderung:29 Nov 2023 08:36

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