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Simulated VLBI Satellite Tracking of the GNSS Constellation: Observing Strategies

Citation

Plank, L and Bohm, J and Schuh, H, Simulated VLBI Satellite Tracking of the GNSS Constellation: Observing Strategies, Proceedings of the IAG Scientific Assembly in Postdam, Germany, 2013, 2-6 September 2013, Potsdam, Germany, pp. 85-90. ISBN 9783319246031 (2015) [Refereed Conference Paper]

Copyright Statement

Copyright 2015 Springer International Publishing Switzerland

DOI: doi:10.1007/1345_2015_87

Abstract

Very Long Baseline Interferometry (VLBI) observations to satellite targets is a promising technique to improve future realizations of terrestrial reference frames (TRF). The high number of available satellites of Global Navigation Satellite Systems (GNSS) provides an attractive existing infrastructure that could be utilized for such observations. The Vienna VLBI Software (VieVS) was extended for the possibilities of scheduling, simulating, and processing VLBI observations to GNSS satellites, allowing to give information on expected accuracies of derived station coordinates. Assuming the GNSS signals to be measured with a precision of 30 ps, we find weekly station position repeatabilities at the centimeter level or better for simulated observations to satellite targets only. Adequate scheduling strategies have to be applied, e.g. in terms of a fast switching between the observed satellites. Even better solutions of about 5mm in mean 3D position rms after one day are achieved when integrating the satellite observations into standard VLBI sessions to extragalactic radio sources. Further, this combined approach allows the determination of a frame tie between the satellite system and the VLBI system in terms of relative Earth rotation parameters and a scale with a precision of about 1–2mm at the Earth’s surface.

Item Details

Item Type:Refereed Conference Paper
Keywords:Geodesy, co-location in space
Research Division:Earth Sciences
Research Group:Geophysics
Research Field:Geophysics not elsewhere classified
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Earth Sciences
Author:Plank, L (Dr Lucia McCallum)
ID Code:112774
Year Published:2015
Deposited By:Mathematics and Physics
Deposited On:2016-11-28
Last Modified:2017-10-30
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