A two-step approach to analyze European geodetic Very Long Baseline Interferometry (VLBI) data
, 2007 Since 1990 the European fixed station geodetic Very Long Baseline Interferometry (VLBI) network has been observing on a regular basis in order to determine crustal motion in Europe.
Rüdiger Haas, Axel Nothnagel
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A Satellite Drift Scan Approach for Establishing the Pointing Model of Radio Telescopes
Advances in Astronomy, Volume 2025, Issue 1, 2025.In the era of large satellite constellations, there are more than 1000 satellites in orbit. While the signals from these satellites may pose a risk of radio frequency interference (RFI) to radio telescopes, they also present a potential advantage by serving as high‐spatial‐density pointing references for radio telescopes.
Ye Yuan +4 more
wiley +1 more source
A VLBI Software Correlator for Fast Radio Transients
The Astronomical JournalOne major goal in fast radio burst science is to detect fast radio bursts (FRBs) over a wide field of view without sacrificing the angular resolution required to pinpoint them to their host galaxies.
Calvin Leung +16 more
doaj +1 more source
Geodetic very long baseline interferometry: an overview
, 2006 Brief Note compiled for Geodetic VLBI Project Meeting held at BARC, Mumbai in Nov. 2006.Since the inception of the Very Long Baseline Interferometry (VLBI) system in 1967, this radio interferometry technique has revolutionised the fields of geodesy ...
KULKARNI, MADHAV
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Differential Very Long Baseline Interferometry (delta VLBI) spacecraft tracking system demonstration. Part 2: Data acquisition and processing [PDF]
, 1980 A set of experiments in the use of Differential Very Long Baseline Interferometry (delta VLBI) for spacecraft navigation were completed. Data using both Voyager spacecraft and a single quasar were acquired during the Jupiter encounter time period.
Wu, S. C. +4 more
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Investigating a continental Australian VGOS VLBI intensive for UT1-UTC determination
Earth, Planets and SpaceIn this simulation study, we investigate the potential performance of VLBI Intensives using the AuScope 12-metre VLBI network. This continental Australian network consisting of three stations, has recently been fully upgraded with VGOS receivers and has ...
Tiege McCarthy +2 more
doaj +1 more source
Basic Earth's Parameters as estimated from VLBI observations
Geodesy and Geodynamics, 2017 The global Very Long Baseline Interferometry observation for measuring the Earth rotation's parameters was launched around 1970s. Since then the precision of the measurements is continuously improving by taking into account various instrumental and ...
Ping Zhu +3 more
doaj +1 more source
Very long baseline interferometry astrometry of PSR B1257+12, a pulsar with a planetary system
, 2013 An astrometry project on PSR B1257+12, a millisecond pulsar with a planetary system, has been carried out with the Very Long Baseline Array and the European Very Long Baseline Interferometry (VLBI) Network at the central frequencies of 1465 and 1540 MHz,
Alef, Walter +5 more
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Spectral index evolution of the limb-brightened jet in 3C 84
Astronomy & AstrophysicsRelativistic jets launched by active galactic nuclei are fundamental for understanding the physics of accreting supermassive black holes and their immediate environment, but the mechanisms that drive the jet launching remain uncertain. We investigate the
Debbrecht L. C. +13 more
doaj +1 more source
Proceedings of the 9th working meeting on European VLBI for geodesy and astrometry
, 1993 At present, the VLBI-results are still being evaluated concerning the basic assumptions of the different solutions and steps have been taken to reach a common reference standard in order to guarantee consistency and to allow meaningful comparisons ...
Nothnagel, A. (eds.) +2 more
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