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J. Gruber, J. Böhm, A. Nothnagel, M. Schartner:
"A Simulator to Generate VLBI Baseband Data in Matlab";
in: "Proceedings of the 24th European VLBI Group for Geodesy and Astrometry Working Meeting", R. Haas, S Garcia-Espada, J.A. Lopez Fernandez (ed.); Chalmers University of Technology, 2019, ISBN: 978-84-416-5634-5, 42 - 46.

VLBI radio telescopes represent a sophisticated interconnection of electronic devices. The final product of each observation by a radio telescope is the baseband data. In this presentation, we show a software tool as part of the Vienna VLBI and Satellite Software (VieVS) which generates simulated VLBI baseband data. This simulator is written in Matlab and contains a telescope model which is based on the parametrization of real antenna key characteristics. Moreover, source characteristics such as the signal structure from satellites as well as spatial velocities of sources and receivers are taken into account in the model. Advanced Digital Signal Processing (DSP) algorithms of Matlab are applied to model the antenna system. We will present the various model components of the simulator and discuss potential applications of such a tool. Finally, we show the first results of simulation experiments with the processing in a real VLBI processing chain.

Baseband data simulation, Correlation

https://publik.tuwien.ac.at/files/publik_284989.pdf