Basic study of novel orbit determination system using VLBI technology by clustered small-size ground stations

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In this research, novel orbit determination system using VLBI (Very Long Baseline Interferometry) is suggested, in which satellites on low earth orbits are observed by clustered small-size ground stations. Firstly, LEO satellites are observed by using existing radio interferometer, and efficient technique of collecting and analyzing observations are studied. Secondly, constructing a small-size ground station, the ability of receiving radio signals is evaluated by analyzing the real observations. Through these works, a basic technology toward a future networked observation system is established.