Optical frequency comb integration in radio telescopes: advancing signal generation and phase calibration [PDF]
Light: Science & ApplicationsVery long baseline interferometry (VLBI) enables high-angular-resolution observations in astronomy and geodesy by synthesizing a virtual telescope with baselines spanning hundreds to thousands of kilometres. Achieving high instrumental phase stability in
Minji Hyun +10 more
doaj +2 more sources
Observing APOD with the AuScope VLBI Array
Sensors, 2018 The possibility to observe satellites with the geodetic Very Long Baseline Interferometry (VLBI) technique is vividly discussed in the geodetic community, particularly with regard to future co-location satellite missions.
Jamie McCallum +2 more
exaly +3 more sources
Radio Astronomical Antennas in the Central African Region to Improve the Sampling Function of the VLBI Network in the SKA Era? [PDF]
Sensors, 2022 On the African continent, South Africa has world-class astronomical facilities for advanced radio astronomy research. With the advent of the Square Kilometre Array project in South Africa (SA SKA), six countries in Africa (SA SKA partner countries) have ...
Marcellin Atemkeng +4 more
doaj +2 more sources
The Celestial Frame and the Weighting of the Celestial Pole Offsets in the Computation of VLBI-Based Corrections for the Main Lunisolar Nutation Terms [PDF]
Sensors, 2021 Very long baseline interferometry (VLBI) is the only technique in space geodesy that can determine directly the celestial pole offsets (CPO). In this paper, we make use of the CPO derived from global VLBI solutions to estimate empirical corrections to ...
Víctor Puente, Marta Folgueira
doaj +2 more sources
A Comparative Study of VTEC Estimates Derived From S/X VLBI and VGOS Observations
Space WeatherThe ionosphere, which strongly varies in time and space, is one of the largest error sources for microwave measurements, if not accounted for accurately.
Arno Rüegg +2 more
doaj +2 more sources
Russian VLBI network “Quasar”: Current status and outlook
Geodesy and Geodynamics, 2019 This paper presents the past, present and future status of the Russian VLBI network “Quasar”. This network has been developed for at least 20 years by the Institute of Applied Astronomy of the Russian Academy of Sciences (IAA RAS).
Igor Surkis +2 more
exaly +3 more sources
VLBI measurement of the vector baseline between geodetic antennas at Kokee Park Geophysical Observatory, Hawaii [PDF]
Journal of Geodesy, 2021 Arthur Niell +2 more
exaly +2 more sources
, 1993 Very long Baseline Interferometry (VLBI) has now made its break-through into the mm wavelength regime. A global VLBI array has produced maps of radio sources at 3 mm since 1988 and development is under way to improve the sensitivity for VLBI also at 1 mm.
Bååth, Lars B.,
core +8 more sources
VLBI Type Experimental Observation of GPS [PDF]
Journal of Astronomy and Space Sciences, 2010 As a preparatory study for Global Positioning System-Very Long Baseline Interferometry (GPS-VLBI) hybrid system, we examined if VLBI type observation of the GPS signal is realizable through a test experiment.
Younghee Kwak +6 more
doaj +1 more source
HINOTORI and Its Perspectives in the Black-Hole Jet Study
Galaxies, 2023 Simultaneous multi-band very long baseline interferometry (VLBI) observations at millimeter wavelengths have huge potential for various science cases.
Toshihisa Tsutsumi +12 more
doaj +1 more source