Results 21 to 30 of about 15,217 (172)

Rotation of Earth and determination of Earth orientation parameters [PDF]

open access: yesGeodetski Glasnik, 2015
Earth's rotation and elements of the Earth's orientation, with emphasis on the determination of the parameters of the Earth's orientation were described.
Mirko Borisov   +2 more
doaj   +1 more source

Comparison of VLBI and GNSS common view for time transfer

open access: yesInternational Journal of Metrology and Quality Engineering, 2019
With the rapid development of optical clock, the stability and system uncertainty of optical clocks has reached a 1.0e–18 level. Optical clocks will likely constitute the next generation of time-frequency standards for redefining the SI second.
Wang Pingli   +4 more
doaj   +1 more source

GPU-Based Parallel Implementation of VLBI Correlator for Deep Space Exploration System

open access: yesRemote Sensing, 2021
Very Long Baseline Interferometry (VLBI) solution can yield accurate information of angular position, and has been successfully used in the field of deep space exploration, such as astrophysics, imaging, detector positioning, and so on.
Fan Zhang   +4 more
doaj   +1 more source

Preliminary Study on the Plate Motion in Korean Peninsula with New Korean VLBL Array [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2006
Korean Peninsula has been postulated to be on the Eurasian plate(EU). On the other hand, recent seismological works and GPS researches suggest that it is on a separate plate called the Amurian plate (AM).
Younghee Kwak, Tetsuo Sasao, Jungho Cho
doaj   +1 more source

Scientific Applications of e-VLBI [PDF]

open access: yes, 2009
The advantages of e-VLBI over traditional media-recorded VLBI are briefly discussed. These advantages lie in two broad areas, those which reduce the operational burden of VLBI and those which enable wholly new kinds of observations to be made.
John E. Conway   +2 more
core   +1 more source

Testing impact of the strategy of VLBI data analysis on the estimation of Earth Orientation Parameters and station coordinates

open access: yesReports on Geodesy and Geoinformatics, 2016
Very Long Baseline Interferometry (VLBI) is the only space geodetic technique capable to realise the Celestial Reference Frame and tie it with the Terrestrial Reference Frame.
Wielgosz Agata   +2 more
doaj   +1 more source

Geodetic VLBI Analysis at the National Geographic Institute of Spain

open access: yesProceedings, 2019
National Geographic Institute of Spain has a strong background concerning technical aspects of geodetic VLBI. As a step forward in this field, a VLBI analysis team has been set up and tests with different software packages have been carried out.
Víctor Puente   +3 more
doaj   +1 more source

Analysis on Impacts of KVN to Geodetic VLBI Network [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2006
KVN simulation, which is focused on evaluating the impacts of KVN to geodetic VLBI network, was performed. The KVN is under construction with three radio telescopes VLBI system for radio astronomy and space geodesy.
Jung-Ho Cho, Jong-Uk Park, Pil-Ho Park
doaj   +1 more source

The Short-Arc Precise Orbit Determination of GEO Satellites Using VLBI and Transfer Ranging

open access: yesRemote Sensing, 2022
It is important for a geostationary Earth orbit (GEO) satellite to rapidly recover its orbit after a maneuver with short-arc precise orbit determination (POD).
Kai Nan   +5 more
doaj   +1 more source

The Past and Future of East Asia to Italy: Nearly Global VLBI

open access: yesGalaxies, 2023
We present here the East Asia to Italy Nearly Global VLBI (EATING VLBI) project. How this project started and the evolution of the international collaboration between Korean, Japanese, and Italian researchers to study compact sources with VLBI ...
Gabriele Giovannini   +31 more
doaj   +1 more source

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