Adaptive attitude tracking control for rigid spacecraft with finite-time convergence

Kunfeng Lu, Yuanqing Xia

Research output: Contribution to journalArticlepeer-review

475 Citations (Scopus)

Abstract

In this paper, the finite-time attitude tracking control problem for rigid spacecraft with external disturbances and inertia uncertainties is addressed. First, a novel fast nonsingular terminal sliding mode surface (FNTSMS) without any constraint is designed, which not only avoids the singularity problem, but also contains the advantages of the nonsingular terminal sliding mode (NTSM) and the conventional sliding-mode together. Second, the proposed FNTSM control laws (FNTSMCLs) by employing FNTSMS associated with adaptation provide finite-time convergence, robustness, faster, higher control precision. The proposed FNTSMCLs in light of novel adaptive control architecture are continuous. Thus, they are chattering-free. Finally, simulation results are presented to illustrate effectiveness of the control strategies. In addition, digital simulations of satellite Hubble Space Telescope (HST) are presented to verify the practical feasibility of the reorientation/ slew maneuvers mission.

Original languageEnglish
Pages (from-to)3591-3599
Number of pages9
JournalAutomatica
Volume49
Issue number12
DOIs
Publication statusPublished - Dec 2013

Keywords

  • Adaptive control
  • Attitude tracking
  • Fast terminal sliding mode control
  • Finite-time control
  • Spacecraft control

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