Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Grzegorz Krzan"'
Autor:
Karol Dawidowicz, Jacek Rapiński, Michał Śmieja, Paweł Wielgosz, Dawid Kwaśniak, Wojciech Jarmołowski, Tomasz Grzegory, Dariusz Tomaszewski, Joanna Janicka, Paweł Gołaszewski, Bogdan Wolak, Radosław Baryła, Grzegorz Krzan, Katarzyna Stępniak, Grec Florin-Catalin, Karol Brzostowski
Publikováno v:
Sensors, Vol 21, Iss 14, p 4639 (2021)
In 2019, the University of Warmia and Mazury in Olsztyn, in cooperation with Astri Polska, started a European Space Agency (ESA) project. The purpose of the project is the development and implementation of a field calibration procedure for a multi-fr
Externí odkaz:
https://doaj.org/article/c9b42e3494b649748107f6ead8d80a7b
In this study, we investigate the impact of GNSS antenna calibration models and multi-GNSS observations on the quality of the tropospheric estimates. The accuracy and homogeneity of the Zenith Total Delay (ZTD) time series estimated from ground-based
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1742496918f70b6d337cb2426cea6e9
https://doi.org/10.5194/egusphere-egu23-15009
https://doi.org/10.5194/egusphere-egu23-15009
Publikováno v:
GPS Solutions. 27
The EUREF Permanent Network (EPN) currently consists of more than 300 evenly distributed continuously operating Global Navigation Satellite System (GNSS) reference stations. As a result of the continuous modernization of GNSS systems, the equipment o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57444932b0934dea90a6eef5aaaee818
https://doi.org/10.1007/s10291-022-01339-8
https://doi.org/10.1007/s10291-022-01339-8
The bottleneck of precise GNSS based applications is caused by the receiver antenna and their precision and accuracy. This work aims to contribute to the design of a model and the development of metrics to estimate and evaluate GPS/GNSS antenna calib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba6c157e8d3cfa5448d277fd48ed75d5
https://doi.org/10.5194/iag-comm4-2022-25
https://doi.org/10.5194/iag-comm4-2022-25
This paper addresses an approach to assess the impact of phase centre correction errors of selected receiving antennas in the Polish ASG-Eupos network using GNSS processing strategies such as zero differencing and double differencing. The objective i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05ff3384d65036d44d83c46b6c5a6424
https://doi.org/10.1007/1345_2022_153
https://doi.org/10.1007/1345_2022_153
Autor:
Katarzyna Stepniak, Grzegorz Krzan
Water vapour is a key variable of the water cycle and plays a special role in many atmospheric processes controlling the weather and climate. Nowadays, extreme weather events, such as storms, floods, landslides, heat waves and droughts are the main c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e442741ed4196ebeb28aa7cd464efea6
https://doi.org/10.5194/egusphere-egu21-10694
https://doi.org/10.5194/egusphere-egu21-10694
Publikováno v:
GPS Solutions. 24
In recent years, the Global Navigation Satellite Systems (GNSS) have been intensively modernized, resulting in the introduction of new carrier frequencies for GPS and GLONASS and the development of new satellite systems such as Galileo and BeiDou (BD
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2fac2370f7c8e9e0636ad603c5c2324
https://doi.org/10.1007/s10291-020-0957-5
https://doi.org/10.1007/s10291-020-0957-5
Autor:
Tomasz Grzegory, Karol Brzostowski, Katarzyna Stepniak, Joanna Janicka, Jacek Rapiński, Paweł Gołaszewski, Pawel Wielgosz, Dariusz Tomaszewski, Grec Florin-Catalin, Wojciech Jarmołowski, Bogdan Wolak, Karol Dawidowicz, Radosław Baryła, Grzegorz Krzan, Dawid Kwaśniak, Michał Śmieja
Publikováno v:
Sensors (Basel, Switzerland)
Sensors
Volume 21
Issue 14
Sensors, Vol 21, Iss 4639, p 4639 (2021)
Sensors
Volume 21
Issue 14
Sensors, Vol 21, Iss 4639, p 4639 (2021)
In 2019, the University of Warmia and Mazury in Olsztyn, in cooperation with Astri Polska, started a European Space Agency (ESA) project. The purpose of the project is the development and implementation of a field calibration procedure for a multi-fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0e51a484a6741a07baf068741678cba
https://doi.org/10.3390/s21144639
https://doi.org/10.3390/s21144639
Autor:
Grzegorz Krzan, Katarzyna Stepniak
Publikováno v:
Artificial Satellites. 52:49-69
In high-accuracy positioning using GNSS, the most common solution is still relative positioning using double-difference observations of dual-frequency measurements. An increasingly popular alternative to relative positioning are undifferenced approac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ba1ce3bd925626ab5cb9fff6b57b13a
https://doi.org/10.1515/arsa-2017-0006
https://doi.org/10.1515/arsa-2017-0006
Autor:
Grzegorz Krzan
Publikováno v:
Studia Geophysica et Geodaetica. 62:17-37
Recently undifferenced Precise Point Positioning (PPP) technique has become a subject of interest not only among researchers, but also satellite positioning practitioners like surveyors and engineers. Along with the development of precise clocks and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c7b6a6860a09b34050a71deace55417
https://doi.org/10.1007/s11200-016-0585-2
https://doi.org/10.1007/s11200-016-0585-2