Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Johann Furthner"'
The application of precise point positioning with broadcast ephemerides (PPP-BCE) is discussed as an alternative to the established all-in-view technique for multi-GNSS time transfer. It combines the use of broadcast ephemerides with low-noise carrie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::87ad174f2364d5eb51a85c3618fe40ae
https://doi.org/10.1007/s10291-022-01326-z
https://doi.org/10.1007/s10291-022-01326-z
Autor:
Kyriakos Balidakis, Thilo Schuldt, Susanne Glaser, Mohammed Mainul Hoque, Martin Gohlke, Markus Oswald, Maorong Ge, Christian Trainotti, Christoph Günther, Jose Sanjuan, Johann Furthner, Galina Dick, Maximilian Semmling, Claus Braxmaier, Frank Flechtner, Harald Schuh, Gabriele Giorgi, M. Murböck, Tobias D. Schmidt, Grzegorz Michalak, C. Fuchs, R. Mata-Calvo, Jens Berdermann, Rolf König
Publikováno v:
Advances in Space Research
This manuscript reviews recent progress in optical frequency references and optical communication systems and discusses their utilizations in global satellite navigation systems and satellite geodesy. Lasers stabilized with optical cavities or spectr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e39b561906397525c078e26212a3fd9
https://doi.org/10.1016/j.asr.2019.06.010
https://doi.org/10.1016/j.asr.2019.06.010
Publikováno v:
The Precise Time and Time Interval Systems and Applications Meeting.
Global Navigation Satellite Systems (GNSSs) are indispensable for numerous daily life applications. They provide essential services for both civil and military uses. Other than enabling global navigation, GNSSs also allow the distribution of a stable
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4ae6f1caf61a48b205463452be7bb73
https://doi.org/10.33012/2020.17308
https://doi.org/10.33012/2020.17308
Publikováno v:
Proceedings of the 32nd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2019).
The quality of the positioning and time dissemination services provided by Global Navigation Satellite Systems is tightly coupled with the provision of a stable system time scale. The robustness of time generation is important to ensure the continuit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::67d3942eae94a590e145c33de349a947
https://doi.org/10.33012/2019.17104
https://doi.org/10.33012/2019.17104
Publikováno v:
The Precise Time and Time Interval Systems and Applications Meeting.
Robust, reliable and stable time scales are needed in a wide field of applications, i.e. in the Global Navigation Satellite System (GNSS) sector. The performance of GNSSs for ground users in terms of navigation is directly connected with the accuracy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2bc791d9961ef409ed6dd4d3e1af6aae
https://doi.org/10.33012/2019.16758
https://doi.org/10.33012/2019.16758
Publikováno v:
The Precise Time and Time Interval Systems and Applications Meeting.
Global navigation satellite systems need a stable and robust system time in order to provide services with high precision. A common approach for its generation is the composite clock method, where an ensemble of clocks contributes to the definition o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3a6b9a055321b44e848a4a61b744767
https://doi.org/10.33012/2019.16756
https://doi.org/10.33012/2019.16756
Clock steering is an important discipline within the time and frequency community as well as in cognate disciplines such as global navigation satellite systems. In the latter, clock steering is a mandatory tool for realizations of time scales, which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e26e3d1e518f1ca5c581a0b32605620e
https://elib.dlr.de/127013/
https://elib.dlr.de/127013/
Global navigation satellite systems need a stable and robust system time in order to provide services with high accuracy. A wellestablished approach for the generation of a time scale is the composite clock method. Differently from single clock appro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84c3c1ed922328e3dd5958f69ce58c2a
https://elib.dlr.de/127848/
https://elib.dlr.de/127848/
Autor:
Johann Furthner, Christoph Enneking, Matteo Sgammini, Ulrich Hörmann, Felix Antreich, Steffen Thoelert, Michael Meurer
Publikováno v:
GPS Solutions. 22
The ionospheric delay of global navigation satellite systems (GNSS) signals typically is compensated by adding a correction value to the pseudorange measurement. We examine the ionospheric signal distortion beyond a constant delay. These effects beco
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22232ed96222178dba672ebcb0802d1f
https://doi.org/10.1007/s10291-018-0758-2
https://doi.org/10.1007/s10291-018-0758-2
Publikováno v:
Scopus-Elsevier
The development of robust and accurate time scales is a key parameter for various future applications, i.e., in the global navigation satellite system sector. A promising concept is the composite clock approach which combines several clocks to produc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::763080d03c72ee66f257f3c8f2470499
https://doi.org/10.33012/2018.15603
https://doi.org/10.33012/2018.15603