direkt zum Inhalt springen

direkt zum Hauptnavigationsmenü

Sie sind hier

TU Berlin

Page Content

SALSAT - Spectrum AnaLysis SATellite

Artistic Impression of SALSAT during an overflight in the low earth orbit
Lupe

   

The Mission

The research project SALSAT (Spectrum AnaLysis SATellite) develops, launches and operates a nanosatellite with a payload for in-orbit spectrum analysis. The primary payload is the spectrum-analyzer SALSA, which has been developed and space-qualified within the recent research activities of the chair of space technology. SALSAT is based on the TUBiX10 satellite bus which has been developed at the Technische Universität (TU) Berlin. An existing flight spare satellite of the S-Net mission is utilized and modified to accommodate the specific needs of the SALSAT mission. The primary focus of the project consists of the design of Hard- and Software components as well as the operation of SALSAT in orbit. Scientific data for the analysis of the global spectrum use is gathered and processed throughout the mission lifetime. The data is used to generate heatmaps of the global spectrum use as well as to detect harmful interference. Study groups of the ITU for spectrum analysis for small satellites are also accompanied in the scope of the SALSAT mission.

The payloads

The SALSAT mission consists of the primary payload SALSA, which is a spectrum analyzer for the analysis of the spectrum utilization from the low earth orbit. SALSA solely analyzes the portion of the spectrum which is utilized for satellite communication (e.g. amateur radio bands). The following frequency bands will be analayzed:

  • VHF: 145.80 – 174.00 MHz
  • UHF: 400.15 – 420.00 MHz
            435.00 – 438.00 MHz
  • S band: 2 075.00 – 2 095.00 MHz
                 2 255.00 – 2 275.00 MHz

The spectrum utilization will be collected and analyzed within these frequencies. As a result a global heatmap of the spectrum utilization over time and location will be generated.

The SALSAT mission will also feature multiple secondary payloads:

  • Laser-Retroreflectors for ground-based high accuracy orbit determination
  • Optical paylaoad for verification of the attitude control system of SALSAT
  • Novel Fluiddynamic Actuator (FDA) for attitude control of nanosatellites
  • Modified S-Link RF transceiver for full-duplex communication in the S band
SALSAT satellite overview
Lupe

The SALSAT Team

SALSAT (Spectrum AnaLysis SATellite) project team
project lead

systems engineer

software engineer

electronics engineer

communications engineer

student assistant

student assistant

student assistant

SALSAT Team
Lupe

Preparatory research projects

As previously mentioned the SALSAT project conducts in-orbit spectrum analysis in defined RF bands. The chair of space technology at the TU Berlin conducted preparatory work within the scope of two completed research projects (REPIN and SALSA). These projects established the theoretical and practical foundation for the SALSAT mission. The utilized satellite bus (TUBiX10) has been developed and space qualified within the S-Net project. This project also utilizes the SLink RF transceiver. The secondary payload for attitude control is developed, qualified and manufactured within the FDA project.

Technical Parameter

This paragraph contains the main technical parameters of SALSAT. It shall be mentioned that the exact parameter evolve during the development process. The table below represents the technical specifications at the stage of the Preliminary Design Review (PDR) in October 2018.

SALSAT: Technical Paramet
Parameter
Value
Orbit
approx. 550 - 600 km (SSO)
Launch Date
Q2/2020
Design Lifetime
>1 year
Mass
12.00 kg 
Volume
240 x 240 x 240 mm³
Communication
UHF (TM/TC), S band (UL/DL of payload data)
Attitude Control
3-axis control with MEMS sensors, magnetorquers and reaction wheels
Payload
Spectrumanalyzer (SALSA), optical camera, 3-axis Fluid-Dynamic Actuation system (FDA), S-band transceiver (SLINK) and Laser reflectors
SALSAT Mission Patch
Lupe
SALSAT Mission on Social Media (Twitter, LinkedIn)
Lupe

   

Publications

Barschke, Merlin F.; Großekatthöfer, Karsten and Montenegro, Sergio (2014). Implementation of a nanosatellite on-board software based on building-blocks. Proceedings of the Small Satellites Systems and Services Symposium


Buscher, Martin; Brieß, Klaus; Ewald, Ralf; Kubat, Dietmar (2014). Small Satellites Systems - Challenges from a Frequency Coordination Perspective. Proceedings the Small Satellites & Services Symposium 2014 - 4S 2014


Schmid, Michael; Adirim, Harry (2014). Aktivitäten im Rahmen der Deutschen CanSat-Höhenrakete an der Technischen Universität Berlin. Proceedings of the German Aerospace Congress 2014


Költzsch, Danilo and Barschke, Merlin F. (2014). Development and verification of a lightweight and modular structure for a novel nanosatellite platform. Proceedings of the 63th German Aerospace Congress


Barschke, Merlin F. and Gordon, Karsten (2014). A generic systems architecture for a single failure tolerant nanosatellite platform. Proceedings of the 65th International Astronautical Congress


Gordon, Karsten; Graf, Alexander; Barschke, Merlin (2015). Practical experience in using continuous integration within the development of nanosatellite software. Proceedings of the 10th IAA Symposium on Small Satellites for Earth Observation, 191–194.


Buscher, Martin; Funke, Tobias; Brieß, Klaus (2015). TUB Small Satellite Database. ITU Symposium and Workshop on small satellilte regulation and communication systems


Buscher, Martin; Ubbels, Wouter Jan (2015). Status of ITU-R studies related to small satellites. ITU Symposium and Workshop on small satellilte regulation and communication systems



M. Schiemangk, K. Lampmann, A. Dinkelaker, A. Kohfeldt, M. Krutzik, Ch. Kürbis A. Sahm, St. Spießb erger, A. Wicht, G. Erbert, G. Tränkle, A Peters (2015). High power, micro-integrated diode laser modules at 767 and 780 nm for portable quantum gas experiments. Applied Optics, 5332.


Sebastian Grau and Daniel Noack and Klaus Brieß (2015). An angular momentum ring storage device prototype for CubeSats based on a liquid metal actuator. Proceedings of the 66th International Astronautical Congress (IAC)


Sebastian Grau and Daniel Noack and Klaus Brieß (2015). Rapid prototyping of a combined channel/pump structure for liquid metal actuators used as angular momentum storage device for picosatellites. Proceedings of the 66th International Astronautical Congress (IAC)


Brieß, Klaus; Avsar, Cem; Barschke, Merlin F.; Baumann, Frank; and Yoon, Zizung (2015). From small satellites to planetary rovers and space probes - A university approach. presentation at the 11th IAA Low-Cost Planetary Missions Conference


Werner, Philipp; Starke, Mario; Graf, Alexander; Gordon, Karsten and Barschke, Merlin F. (2015). Modular electrical ground support equipment for nanosatellites. Proceedings of the 10th IAA Symposium on Small Satellites for Earth Observation, 211–214.


Frank Baumann and Klaus Brieß (2015). A Quad-channel UHF Transceiver for TUBiX20. 10th IAA Symposium on Small Satellites for Earth Observation


To top

Zusatzinformationen / Extras

Quick Access:

Schnellnavigation zur Seite über Nummerneingabe

Fachgebietsleitung

Prof. Dr.-Ing. Klaus Brieß
Tel. +49 30 314-21339
Room F 515

Grant No.:

50 YB 1805