Gain scheduled inverse optimal control for fine pointing of a spacecraft camera

Sharmila Kayastha, Ozan Tekinalp, Nadjim Horri, Kemal Ozgoren

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)

Abstract

The problem of controlling a system modeled as two coupled bodies, a spacecraft and a camera, is considered here. These two bodies are connected by active truss members forming a system of springs and piezoelectric actuators to damp out vibrations. There is also a satellite mounted reaction wheel cluster to perform slew maneuvers. An inverse optimal controller is designed to control the attitude of the satellite and improve the pointing performance of its large earth observation camera. It is based on gain scheduled minimum-norm optimization. A gain scheduling strategy is used in this paper to achieve an optimal tradeoff between settling time and integrated torque, under torque saturation constraints. Simulation results show that the proposed controller compares favorably with a conventional quaternion error feedback controller, which is used as a benchmark.
Original languageEnglish
Title of host publication Proceedings of 5th International Conference on Recent Advances in Space Technologies - RAST2011
PublisherIEEE
ISBN (Electronic)978-1-4244-9616-7
ISBN (Print)978-1-4244-9617-4
DOIs
Publication statusPublished - 29 Jul 2011
Event5th International Conference on Recent Advances in Space Technologies : RAST2011 - Istanbul, Turkey
Duration: 9 Jun 201111 Jun 2011
Conference number: 5
https://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=5956072

Conference

Conference5th International Conference on Recent Advances in Space Technologies
CountryTurkey
CityIstanbul
Period9/06/1111/06/11
Internet address

Keywords

  • gain scheduled minimum-norm control
  • attitude control
  • pointing performance

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