The new-generation geodetic radio telescopes observe two orthogonal linear polarization directions. Calibration of the gain differences between the two polarizers is necessary to maximize the signal-to-noise ratio of observations. This study investigates these cross-polarization gain differences and their temporal evolution for selected antennas. Check it out!
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A paper on the optimal distribution of VLBI transmitters in the Galileo space segment for frame ties (simulation study) has been published in Earth, Planets and Space. Check it out!
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A paper on the importance of accurate pole and station coordinates for the determination of UT1 with VLBI Intensive sessions (simulation study) has been published in the Journal of Geodesy. Check it out!
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A paper on the computation of global reference frames from very long baseline interferometry (VLBI) observations at the Vienna International VLBI Service for Geodesy and Astrometry (IVS) Analysis Center (VIE) has been published in A&A (here).
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The installation of a VLBI transmitter on Galileo satellites would allow observing satellites besides quasars with VLBI telescopes. Three additional Dilution of Precision (DOP) factors were introduced which are representing the sensitivity of a satellite observation towards the components of the satellite position in the local orbital. These factors were used for evaluating observations to […]
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