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Network Code DGNSS Positioning for Faster L1–L5 GPS Ambiguity Initialization

This paper presents DGNSS network code positioning using permanent geodetic networks, commonly used in GNSS measurements. Using several reference stations at the same time allows for the independent control of GNSS positioning and facilitates the more realistic estimation of accuracy. Test calculati...

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Autores principales: Bakuła, Mieczysław, Uradziński, Marcin, Krasuski, Kamil
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7582298/
https://www.ncbi.nlm.nih.gov/pubmed/33020455
http://dx.doi.org/10.3390/s20195671
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author Bakuła, Mieczysław
Uradziński, Marcin
Krasuski, Kamil
author_facet Bakuła, Mieczysław
Uradziński, Marcin
Krasuski, Kamil
author_sort Bakuła, Mieczysław
collection PubMed
description This paper presents DGNSS network code positioning using permanent geodetic networks, commonly used in GNSS measurements. Using several reference stations at the same time allows for the independent control of GNSS positioning and facilitates the more realistic estimation of accuracy. Test calculations were made on the basis of real GPS data, using one TRIMBLE mobile receiver and four nearest reference stations of the ASG-EUPOS geodetic system. In addition, DGNSS positioning computational simulations were performed for a case where one mobile GNSS receiver would be able to be used with two (e.g., GPS + Galileo or GPS + GLONASS) or four different positioning systems and different GNSS reference station systems at the same time. To reduce the deviations of the DGPS positioning from a true value, the Kalman filtering for horizontal coordinates and vertical ones was used. The result shows a significant improvement in DGPS positioning accuracy. Based on the numerical analysis carried out, it can be seen that when four GNSS systems are used, it is possible to achieve a DGNSS accuracy of 0.1 m and 0.2 m for horizontal and height coordinates, respectively, using only code measurements. Additionally, the paper presents the impact of the DGNSS code positioning accuracy on the effectiveness of determining ambiguities of phase observations on individual measurement epochs, using the L1–L5 observations of the GPS system and the precise and fast method of ambiguity resolution (PREFMAR). The developed DGNSS positioning methodology can be applied for reliable GNSS navigation using at least two independent GNSS systems.
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spelling pubmed-75822982020-10-28 Network Code DGNSS Positioning for Faster L1–L5 GPS Ambiguity Initialization Bakuła, Mieczysław Uradziński, Marcin Krasuski, Kamil Sensors (Basel) Article This paper presents DGNSS network code positioning using permanent geodetic networks, commonly used in GNSS measurements. Using several reference stations at the same time allows for the independent control of GNSS positioning and facilitates the more realistic estimation of accuracy. Test calculations were made on the basis of real GPS data, using one TRIMBLE mobile receiver and four nearest reference stations of the ASG-EUPOS geodetic system. In addition, DGNSS positioning computational simulations were performed for a case where one mobile GNSS receiver would be able to be used with two (e.g., GPS + Galileo or GPS + GLONASS) or four different positioning systems and different GNSS reference station systems at the same time. To reduce the deviations of the DGPS positioning from a true value, the Kalman filtering for horizontal coordinates and vertical ones was used. The result shows a significant improvement in DGPS positioning accuracy. Based on the numerical analysis carried out, it can be seen that when four GNSS systems are used, it is possible to achieve a DGNSS accuracy of 0.1 m and 0.2 m for horizontal and height coordinates, respectively, using only code measurements. Additionally, the paper presents the impact of the DGNSS code positioning accuracy on the effectiveness of determining ambiguities of phase observations on individual measurement epochs, using the L1–L5 observations of the GPS system and the precise and fast method of ambiguity resolution (PREFMAR). The developed DGNSS positioning methodology can be applied for reliable GNSS navigation using at least two independent GNSS systems. MDPI 2020-10-04 /pmc/articles/PMC7582298/ /pubmed/33020455 http://dx.doi.org/10.3390/s20195671 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Bakuła, Mieczysław
Uradziński, Marcin
Krasuski, Kamil
Network Code DGNSS Positioning for Faster L1–L5 GPS Ambiguity Initialization
title Network Code DGNSS Positioning for Faster L1–L5 GPS Ambiguity Initialization
title_full Network Code DGNSS Positioning for Faster L1–L5 GPS Ambiguity Initialization
title_fullStr Network Code DGNSS Positioning for Faster L1–L5 GPS Ambiguity Initialization
title_full_unstemmed Network Code DGNSS Positioning for Faster L1–L5 GPS Ambiguity Initialization
title_short Network Code DGNSS Positioning for Faster L1–L5 GPS Ambiguity Initialization
title_sort network code dgnss positioning for faster l1–l5 gps ambiguity initialization
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7582298/
https://www.ncbi.nlm.nih.gov/pubmed/33020455
http://dx.doi.org/10.3390/s20195671
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