T
Tomasz Hadas
Researcher at Wroclaw University of Environmental and Life Sciences
Publications - 27
Citations - 863
Tomasz Hadas is an academic researcher from Wroclaw University of Environmental and Life Sciences. The author has contributed to research in topics: GNSS applications & Precise Point Positioning. The author has an hindex of 11, co-authored 24 publications receiving 604 citations. Previous affiliations of Tomasz Hadas include University of Stuttgart.
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IGS RTS precise orbits and clocks verification and quality degradation over time
Tomasz Hadas,Jarosław Bosy +1 more
TL;DR: A method of short-term prediction of RTS corrections that extends the application period of obsolete correction data without a significant loss in orbit quality is proposed and it is possible to forecast the orbit corrections reliably up to 8 min for GPS and 4 Min for GLONASS.
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Quality assessment of multi-GNSS orbits and clocks for real-time precise point positioning
TL;DR: A comprehensive evaluation of the availability and the quality of multi-GNSS real-time orbit and clock products is provided through the comparison to the final Center for Orbit Determination in Europe (CODE) orbits, fitting long continuous orbital arcs, as well as the assessment of clock stability using modified Allan deviation diagrams.
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Near-real-time regional troposphere models for the GNSS precise point positioning technique
TL;DR: In this article, the authors have developed two independent regional troposphere models for the territory of Poland, one is estimated in near real-time regime using GNSS data from a Polish ground-based augmentation system named ASG-EUPOS established by Polish Head Office of Geodesy and Cartography (GUGiK).
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Validation of Galileo orbits using SLR with a focus on satellites launched into incorrect orbital planes
Krzysztof Sośnica,Lars Prange,Kamil Kaźmierski,Grzegorz Bury,Mateusz Drożdżewski,Radosław Zajdel,Tomasz Hadas +6 more
TL;DR: In this paper, the authors compared satellite laser ranging (SLR) observations with microwave-based Galileo orbits generated by the Center for Orbit Determination in Europe (CODE) in the framework of the International GNSS Service Multi-GNSS Experiment for the period 2014.0-2016.5.
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Weighting of Multi-GNSS Observations in Real-Time Precise Point Positioning
TL;DR: It is found that improper or equal weighting may improve formal errors but decreases coordinate repeatability when compared to the GPS-only solution, and intra-system weighting based on satellite orbit quality allows for a reduction of formal errors.