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Positioning performance of the Neustrelitz total electron content model driven by Galileo Az coefficients

Cahuasqui Llerena, Juan Andres und Hoque, Mohammed Mainul und Jakowski, Norbert (2022) Positioning performance of the Neustrelitz total electron content model driven by Galileo Az coefficients. GPS Solutions, 26 (93). Springer. doi: 10.1007/s10291-022-01278-4. ISSN 1080-5370.

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Offizielle URL: https://link.springer.com/article/10.1007/s10291-022-01278-4

Kurzfassung

To aid single-frequency GNSS users, the Neustrelitz Total Electron Content Model (NTCM) has been proposed as an adequate solution to mitigate propagation errors besides the GPS Klobuchar and Galileo NeQuick models. Using the three effective ionization coefficients broadcast in the Galileo navigation message as driver parameters, the version NTCM-GlAzpar, in general, performs equal to or better than NeQuickG when compared to the total electron content domain. In this work, we performed a global statistical validation of the NTCM-GlAzpar model in the position domain by comparing its results with the results of the Klobuchar and NeQuickG models for the first time. For this purpose, we used the GNSS analysis tool gLAB and its customization capabilities in the Standard Point Positioning mode. The data used for model validation correspond to a one-month period of perturbed solar and geomagnetic activity (December 2014) and another one-month period of quiet conditions (December 2019). The data have a worldwide coverage with up to 73 IGS stations. The statistical analysis of the hourly average 3D position error shows that the root mean squared (RMS) values of the Klobuchar model are 6.71 and 2.75 m for the perturbed and quiet conditions, respectively, whereas the NeQuickG model has RMS values of 4.61 and 2.35 m. In comparison, the corresponding RMS values of 4.36 and 2.32 m of the NTCM-GlAzpar model confirm its better positioning performance for both periods. However, we identify also that the performance of NTCM-GlAzpar slightly worsens toward higher latitudes and at night local time. Simple software adaptations and a low computational cost make NTCM-GlAzpar an alternative practicable algorithm to improve the accuracy of GNSS single-frequency applications.

elib-URL des Eintrags:https://elib.dlr.de/188000/
Dokumentart:Zeitschriftenbeitrag
Titel:Positioning performance of the Neustrelitz total electron content model driven by Galileo Az coefficients
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Cahuasqui Llerena, Juan AndresAndres.Cahuasqui (at) dlr.dehttps://orcid.org/0000-0002-1783-0823NICHT SPEZIFIZIERT
Hoque, Mohammed MainulMainul.Hoque (at) dlr.dehttps://orcid.org/0000-0001-5134-4901NICHT SPEZIFIZIERT
Jakowski, NorbertNorbert.Jakowski (at) dlr.dehttps://orcid.org/0000-0003-3174-2624NICHT SPEZIFIZIERT
Datum:Juni 2022
Erschienen in:GPS Solutions
Referierte Publikation:Ja
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:26
DOI:10.1007/s10291-022-01278-4
Verlag:Springer
ISSN:1080-5370
Status:veröffentlicht
Stichwörter:GNSS; gLAB tool; NTCM; Single-frequency positioning; Ionospheric correction
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Erdbeobachtung
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):R - Solar-Terrestrische Physik SO, R - Ionosphäre, R - GNSS Technologien und Dienste
Standort: Neustrelitz
Institute & Einrichtungen:Institut für Solar-Terrestrische Physik > Weltraumwetterbeobachtung
Institut für Solar-Terrestrische Physik
Hinterlegt von: Cahuasqui Llerena, Dr. Juan Andres
Hinterlegt am:29 Aug 2022 09:34
Letzte Änderung:28 Jun 2023 11:22

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