On-ground verification of attitude control system for 50-kg-class microsatellite using a hardware-in-the-loop-simulator

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Space Robotics Laboratory of Tohoku University is currently developing a series of 50-kg-class microsatellites for Earth observation. In this paper, we propose design of an attitude control system (ACS) focusing on its control algorithms and computers. This ACS will be equipped on our 4th microsatellite "RISESAT" and launched by the Epsilon rocket in 2018. The primary mission of RISESAT is multi-spectral Earth observation using a 5 m GSD High-Precision-Telescope with liquid crystal tunable filters. During an observation, RISESAT has to track a ground target with an accuracy of 0.1° and 0.008°/s attitude stability because imaging and wavelength switching take several tens of seconds in total. To solve this problem, we developed a high-speed attitude control computer and precision groundtracking algorithms. Evaluations of the algorithms were carried out by a hardware-in-the-loop simulator "MEVIμS" developed by SRL. We confirmed that the ACS and its algorithms satisfies the mission requirements under the influence of sensor noise and computation time limits.

Original languageEnglish
Title of host publication68th International Astronautical Congress, IAC 2017
Subtitle of host publicationUnlocking Imagination, Fostering Innovation and Strengthening Security
PublisherInternational Astronautical Federation, IAF
Pages6141-6150
Number of pages10
ISBN (Print)9781510855373
Publication statusPublished - 2017
Event68th International Astronautical Congress: Unlocking Imagination, Fostering Innovation and Strengthening Security, IAC 2017 - Adelaide, Australia
Duration: 2017 Sep 252017 Sep 29

Publication series

NameProceedings of the International Astronautical Congress, IAC
Volume9
ISSN (Print)0074-1795

Other

Other68th International Astronautical Congress: Unlocking Imagination, Fostering Innovation and Strengthening Security, IAC 2017
CountryAustralia
CityAdelaide
Period17/9/2517/9/29

Keywords

  • Attitude control
  • Ground-target tracking
  • Hardware-in-the-loop simulation
  • Microsatellite

ASJC Scopus subject areas

  • Aerospace Engineering
  • Astronomy and Astrophysics
  • Space and Planetary Science

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