Very long baseline interferometry for geodesy and astrometry
Abstract Very Long Baseline Interferometry (VLBI) is a microwave-based space geodetic
technique that measures the difference in arrival times of signals from a radio source by …
technique that measures the difference in arrival times of signals from a radio source by …
Very long baseline interferometry
A Nothnagel - … : Handbuch der Geodäsie, herausgegeben von Willi …, 2020 - Springer
This chapter describes the theory and the individual operational steps and components
needed to carry out geodetic and astrometric Very Long Baseline Interferometry (VLBI) …
needed to carry out geodetic and astrometric Very Long Baseline Interferometry (VLBI) …
Gravitational deformation of ring-focus antennas for VGOS: first investigations at the Onsala twin telescopes project
M Lösler, R Haas, C Eschelbach, A Greiwe - Journal of Geodesy, 2019 - Springer
The receiving properties of radio telescopes used in geodetic and astrometric very long
baseline interferometry (VLBI) depend on the surface quality and stability of the main …
baseline interferometry (VLBI) depend on the surface quality and stability of the main …
Height bias and scale effect induced by antenna gravitational deformations in geodetic VLBI data analysis
The impact of signal path variations (SPVs) caused by antenna gravitational deformations
on geodetic very long baseline interferometry (VLBI) results is evaluated for the first time …
on geodetic very long baseline interferometry (VLBI) results is evaluated for the first time …
A VLBI delay model for gravitational deformations of the Onsala 20 m radio telescope and the impact on its global coordinates
Deformations of the reflectors of radio telescopes used in geodetic and astrometric VLBI
observations belong to the class of systematic error sources which affect the estimated …
observations belong to the class of systematic error sources which affect the estimated …
A gravitational telescope deformation model for geodetic VLBI
S Bergstrand, M Herbertsson, C Rieck, J Spetz… - Journal of …, 2019 - Springer
We have measured the geometric deformations of the Onsala 20 m VLBI telescope utilizing
a combination of laser scanner, laser tracker, and electronic distance meters. The data put …
a combination of laser scanner, laser tracker, and electronic distance meters. The data put …
Estimation of focal length variations of a 100-m radio telescope's main reflector by laser scanner measurements
C Holst, P Zeimetz, A Nothnagel… - Journal of Surveying …, 2012 - ascelibrary.org
Due to gravitation, the main reflector of a radio telescope underlies a deformation that
causes a change in focal length depending on the variations of the elevation angle of the …
causes a change in focal length depending on the variations of the elevation angle of the …
Ray tracing-based delay model for compensating gravitational deformations of VLBI radio telescopes
M Lösler, C Eschelbach, A Greiwe… - Journal of Geodetic …, 2022 - degruyter.com
The precision and the reliability of very long baseline interferometry (VLBI) depend on
several factors. Apart from fabrication discrepancies or meteorological effects, gravity …
several factors. Apart from fabrication discrepancies or meteorological effects, gravity …
A complete VLBI delay model for deforming radio telescopes: the Effelsberg case
T Artz, A Springer, A Nothnagel - Journal of Geodesy, 2014 - Springer
Deformations of radio telescopes used in geodetic and astrometric very long baseline
interferometry (VLBI) observations belong to the class of systematic error sources which …
interferometry (VLBI) observations belong to the class of systematic error sources which …
[图书][B] Modellbildungen zur Signalweg-und in-situ Referenzpunktbestimmung von VLBI-Radioteleskopen
M Lösler - 2021 - search.proquest.com
Die Erde befindet sich in einem kontinuierlichen Wandel, der aus verschiedenen
variierenden dynamischen Prozessen und einwirkenden Kräften resultiert. Die globale …
variierenden dynamischen Prozessen und einwirkenden Kräften resultiert. Die globale …