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Relative Orbit Propagation and Control for Satellite Formation Flying using Continuous Low-thrust
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering. Julius-Maximilians-Universität Würzburg.
2017 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

For the upcoming formation flying technology demonstration mission NetSat a relative orbit propagator as well as a relative orbit controller were developed. The formation will consist of four equal nano-satellites with an electric propulsion system for orbit correction manoeuvres. This demands the use of continuous low-thrust models for relative orbit control, which is a novel field. A software framework was developed which allows orbit simulations of the whole fleet in a fully non-linear environment. The final on-board relative propagator is based on the Gim-Alfriend STM and incorporates eccentricity and the non-spherical shape of the Earth. The controller uses control Lyapunov function-based design and model predictive control, depending on the task. The guidance and control system is able to safely govern the relative motion for one-, two and three-dimensional formation configurations with inter-satellite distances as low as 50m. Based on these results, a complete mission plan is proposed.

Place, publisher, year, edition, pages
2017. , p. 112
Keywords [en]
formation flying, low-thrust, orbit propagation, control, continuous thrust, NetSat, electric propulsion
National Category
Aerospace Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-61664OAI: oai:DiVA.org:ltu-61664DiVA, id: diva2:1068985
External cooperation
Zentrum für Telematik
Educational program
Space Engineering, master's level (120 credits)
Supervisors
Examiners
Available from: 2017-01-31 Created: 2017-01-30 Last updated: 2017-01-31Bibliographically approved

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Department of Computer Science, Electrical and Space Engineering
Aerospace Engineering

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf