M.Sc. Tobias Greiner

Summary

Tobias Greiner studied aerospace computer science and computer science at the University of Würzburg and received his bachelor’s degrees in 2016 and 2017. In his thesis he developed an FPGA-based motor control approach and built an initial reaction wheel prototype. The reaction wheel has been continuously developed to a flight ready design by him since then and three wheels will launch with the SONATE Mission mid 2019.

Abbildung 1: Reaction Wheel

In 2017 Tobias started working with the AROS project. He worked with the OP2 Starsensor Modell, an SoC design. Main aspects was the programming of the Microcontroller and FPGA software, as well as testing under laboratory conditions using an star simulator. He presented the project at the 4S Symposium in Sorrento, Italy in 2018. In the end of 2018 a successful field test was also conducted in La Palma, Spain, at the Roque de los Muchachos observatory.

Abbildung 2: AROS field test La Palma

In autumn 2018 Tobias joined the NACOMI project, which aims to study and develop an interplanetary low power transceiver. Tobias developed the testing software running on recent Xilinx SoC Hardware, which implemented a full QPSK data communication link. In late 2018 two radiation tests were conducted at the Helmholtz institute Berlin.

Since 2019 Tobias Greiner is working with the SONATE project, supporting the testing procedures ADCS system and sunsensor development. Further activities include the acquisition of research funding and the supervision of student research assistants.

In 2020 Tobias Greiner finished his Master Thesis on Anomaly Detection using Deep Learning as a potential use case in nanosatellite missions.

Publications

• Oleksii Balagurin, Tom Baumann, Tobias Greiner, Hakan Kayal, Andreas Maurer, Thomas Rapp, Tobias Schwarz, 3U satellite bus SONATE for technology demonstration of autonomous payloads, in Proceedings of the 12th IAA Symposium on Small Satellites for Earth Observation, Berlin, Germany, 2019
• Thomas C. van Dijk, Tobias Greiner, Bas den Heijer, Nadja Henning, Felix Klesen, Andre Löffler, „Wüpstream: efficient enumeration of upstream features (GIS cup)”, in SIGSPATIAL '18 Proceedings of the 26th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, Seattle, USA, 2018
• Tobias Greiner, Oleksii Balagurin, Hakan Kayal, Tobias Schwarz, „OPTIMIZATION TOOL FOR MISSION SPECIFIC DESIGN OF STAR SENSORS”, in Small Satellites, System & Services Symposium (4S), Sorrento, Italy, 2018
• Kayal H., Balagurin O., Djebko K., Fellinger G., Greiner T., Puppe F., Schneider A., Schwarz T., Wojtkowiak H., “SONATE – A Nanosatellite for Autonomy”, in Proceedings of the 68th International Astronautical Congress, Adelaide, Australia, 2017