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arXiv · 2302.05555

Precise VLBI/GNSS ties with micro-VLBI

Leonid Petrov·Johnathan York·Joe Skeens·Richard Ji-Cathriner·David Munton·Kyle Herrity
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Abstract

We present here a concept of measuring local ties between collocated GNSS and VLBI stations using the microwave technique that effectively transforms a GNSS receiver to an element of a VLBI network. This is achieved by modifying the signal chain that allows to transfer voltage of the GNSS antenna to a digitizer via a coaxial cable. We discuss the application of this technique to local tie measurement. We have performed observations with a GNSS antenna and FD-VLBA radiotelescope and detected a strong interferometric signal from both radiogalaxies and GNSS satellites.

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Leonid Petrov, Johnathan York, Joe Skeens, Richard Ji-Cathriner, David Munton, Kyle Herrity. 2023-02-11. Precise VLBI/GNSS ties with micro-VLBI. https://arxiv.org/abs/2302.05555

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