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Assessment of GNSS Galileo Contribution to the Modernization of CROPOS’s

Šugar, Danijel and Kliman, Ana and Bačić, Željko and Nevistić, Zvonimir (2023) Assessment of GNSS Galileo Contribution to the Modernization of CROPOS’s. Sensors, 23 (5), p. 2466. Multidisciplinary Digital Publishing Institute (MDPI). doi: 10.3390/s23052466. ISSN 1424-8220.

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Official URL: https://www.mdpi.com/1424-8220/23/5/2466


CROPOS, as the Croatian GNSS network, was modernized and upgraded to support the Galileo system in 2019. Two of CROPOS’s services—VPPS (Network RTK service) and GPPS (post-processing service)—were assessed for the contribution of the Galileo system to their performance. A station used for field testing was previously examined and surveyed to determine the local horizon and to carry out a detailed mission planning. The whole day of observation was divided into several sessions, each with a different visibility of Galileo satellites. A special observation sequence was designed: VPPS (GPS-GLO-GAL), VPPS (GAL-only), and GPPS (GPS-GLO-GAL-BDS). All observations were taken on the same station with the same GNSS receiver, Trimble R12. Each static observation session was post-processed in Trimble Business Center (TBC) in two different ways: considering all available systems (GGGB) and considering GAL-only observations. A daily static solution based on all systems (GGGB) was considered as the reference for the accuracy assessment of all obtained solutions. The results obtained with VPPS (GPS-GLO-GAL) and VPPS (GAL-only) were analyzed and assessed; the results obtained with GAL-only have shown a slightly higher scatter. It was concluded that the inclusion of the Galileo system in CROPOS has contributed to the availability and reliability of solutions but not to their accuracy. By complying with the observation rules and taking redundant measurements, the accuracy of GAL-only results can be improved.

Item URL in elib:https://elib.dlr.de/196904/
Document Type:Article
Title:Assessment of GNSS Galileo Contribution to the Modernization of CROPOS’s
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Kliman, AnaUNSPECIFIEDhttps://orcid.org/0009-0008-9683-6350141500198
Date:23 February 2023
Journal or Publication Title:Sensors
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
Page Range:p. 2466
Publisher:Multidisciplinary Digital Publishing Institute (MDPI)
Keywords:CROPOS, GNSS, Galileo, VPPS, GPPS
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication, Navigation, Quantum Technology
DLR - Research area:Raumfahrt
DLR - Program:R KNQ - Communication, Navigation, Quantum Technology
DLR - Research theme (Project):R - GNSS Technologies and Services
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Navigation
Deposited By: Kliman, Ana
Deposited On:31 Aug 2023 16:19
Last Modified:08 Sep 2023 12:15

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