Pregled bibliografske jedinice broj: 1256431
Assessment of GNSS Galileo Contribution to the Modernization of CROPOS’s Services
Assessment of GNSS Galileo Contribution to the Modernization of CROPOS’s Services // Sensors, 23 (2023), 5; 2466, 31 doi:10.3390/s23052466 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 1256431 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Assessment of GNSS Galileo Contribution to the
Modernization of CROPOS’s Services
Autori
Šugar, Danijel ; Kliman, Ana ; Bačić, Željko ; Nevisitić, Zvonimir
Izvornik
Sensors (1424-8220) 23
(2023), 5;
2466, 31
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
CROPOS ; GNSS ; Galileo ; modernization ; VPPS ; GPPS
Sažetak
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 (postprocessing 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.
Izvorni jezik
Engleski
Znanstvena područja
Geodezija
POVEZANOST RADA
Ustanove:
Geodetski fakultet, Zagreb
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
- MEDLINE