S-NET

THE MISSION

The objective of the S-Net mission is to investigate and demonstrate the inter-satellite communication technology within a distributed an autonomously operating nanosatellite network. As space born systems have become an essential element in facing global challenges such as climate change, disaster management and maritime systems monitoring, rapid response and low cost systems are in high demand.

A key technology to increase the operational efficiency of distributed satellite systems via formations or even autonomous swarms is the miniaturizing of intersatellite communication technology. In cooperation with IQ wireless GmbH, TU Berlin developed an S-band transceiver (SLink) with 100 kbps crosslink and 1 Mbps downlink capability suitable for accommodation in nanosatellites.

At the TU Berlin, the following members of the team are employed on the project:

• Zizung Yoon, Project Manager

• Walter Frese, Systems engineer 

• Huu Quan Vu, Mechanical and AIV engineer

• Christian Meumann, Electrical engineer

• Matthias Binder, Attitude control engineer

VIDEOS

Short docu about mission TV1:

https://youtu.be/gUVoT2t3s10

The mission (image video):

https://youtu.be/NnrLFWURbvE

Encapsulation of Fregat upper stage at cosmodrome Vostochny:

https://youtu.be/-YhaOSImTFA

Report (successful launch and first contact):

https://youtu.be/JCMQfDMIgxc

• S-NET was supported by German Aerospace Center (DLR) Space Agency (Raumfahrtmanagement) with funds from the German Federal Ministry of Economic Affairs and Technology (BMWT), Grant No: 50 YB 1225

Peer Reviewed Journals:

Zizung Yoon, Walter Frese, and Enrico Stoll. “In-Orbit Performance of the Narrowband Intersatellite Mission S-NET”. In: 2022 IEEE Space Hardware and Radio Conference (SHaRC) (2022), pp. 1–4. DOI: 10.1109/SHaRC53093.2022.9720032.

Zizung Yoon, Yeerang Lim, Sebastian Grau, Walter Frese, and Manuel A. Garcia. “Orbit deployment and drag control strategy for formation flight while minimizing collision probability and drift”. In: CEAS Space Journal 12 (2020), pp. 397–410. ISSN: 1868-2502. DOI: 10.1007/s12567-020-00308-6.

Zizung Yoon, Walter Frese, and Klaus Briess. “Design and Implementation of a Narrow-Band Intersatellite Network with Limited Onboard Resources for IoT”. In: Sensors 19.19 (Sept. 2019), p. 4212. DOI: 10.3390/s19194212.

Zizung Yoon, Walter Frese, Alexander Bukmaier, and Klaus Briess. “System Design of an S-Band Network of Distributed Nanosatellites”. In: CEAS Space Journal 6.1 (Mar. 2013). DOI: 10.1007/ s12567-013-0058-1.

In Proceedings

Walter Frese, Udo Renner, Klaus Briess, and Zizung Yoon. “Design and On-Orbit Experience of Reaction Wheels for Small Satellites”. In: 33rd AIAA/USU Small satellites. 2019.

Walter Frese, Zizung Yoon, and Klaus Briess. “S-Net first year in orbit: verification of a nanosatellite network in s band”. In: 12th IAA Symposium on small satellites for Earth observation. Ed. By Sandau. Vol. 12. 2019.

Walter Frese, Zizung Yoon, Huu Quan Vu, and Klaus Briess. “TUBiX-10 -Design and Flight Experience of a Nanosatellite Bus for Distributed Missions”. In: 70th International Astronautical Congress. 2019.

Yeerang Lim, Zizung Yoon, and Walter Frese. “in-orbit differential drag control experiment on nanosatellite cluster: analysis and flight results”. In: 12th IAA Symposium on small satellites for Earth observation. Ed. by Sandau. Vol. 12. 2019.

Zizung Yoon, Walter Frese, and Klaus Briess. “novel nanosatellite cluster deployment strategy by precise orbit insertion – design, verification and flight results”. In: 12th IAA Symposium on small satellites for Earth observation. Ed. by Sandau. Vol. 12. 2019.

Walter Frese, Zizung Yoon, and Klaus Briess. “communication network in LEO: in-orbit verification of intersatellite link by nanosatellite cluster S-Net”. In: Proceedings of the International Astronautical Congress (IAC). 2018.

Merlin Barschke, Zizung Yoon, and Klaus Briess. “TUBiX - The TU Berlin Innovative Next Generation Nanosatellite Bus”. In: 64th International Astronautical Congress. Sept. 2013.

Walter Frese, Klaus Briess, and Zizung Yoon. “A Network Architecture for Inter-satellite Communication of Distributed Nano Spacecraft Systems”. In: Deutscher Luft- und Raumfahrtkongress (German Aerospace Congress). Bonn: DGLR e.V., 2011, pp. 1451–1461.