Observer-based body-frame hovering control over a tumbling asteroid

Morad Nazari, Robert Wauson, Thomas Critz, Eric Butcher, Daniel J. Scheeres

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

3 Scopus citations

Abstract

Observer-based hovering control over a tumbling asteroid in the body-fixed frame is studied. An extended Kalman filter (EKF) is used to process range measurements from a small collection of ground stations, yielding estimates of the spacecraft state vector and the gravitational parameters of the asteroid assuming a second degree and order gravity field model. The estimated states are used in the optimal feedback control algorithm which consists of two alternatives: time-varying LQR or the Lyapunov-Floquet transformation (LFT) and time-invariant LQR. The closed-loop response of the system and the control effort required are investigated and compared for both control strategies.

Original languageEnglish (US)
Title of host publicationAdvances in the Astronautical Sciences
PublisherUnivelt Inc.
Pages1737-1755
Number of pages19
Volume150
ISBN (Print)9780877036050
Publication statusPublished - 2014
Externally publishedYes
Event2013 AAS/AIAA Astrodynamics Specialist Conference, Astrodynamics 2013 - Hilton Head Island, SC, United States
Duration: Aug 11 2013Aug 15 2013

Other

Other2013 AAS/AIAA Astrodynamics Specialist Conference, Astrodynamics 2013
CountryUnited States
CityHilton Head Island, SC
Period8/11/138/15/13

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ASJC Scopus subject areas

  • Aerospace Engineering
  • Space and Planetary Science

Cite this

Nazari, M., Wauson, R., Critz, T., Butcher, E., & Scheeres, D. J. (2014). Observer-based body-frame hovering control over a tumbling asteroid. In Advances in the Astronautical Sciences (Vol. 150, pp. 1737-1755). Univelt Inc..