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Robust Finite-Time Control for Spacecraft with Coupled Translation and Attitude Dynamics

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  • Guo-Qiang Wu
  • Shu-Nan Wu
  • Zhi-Gang Wu

Abstract

Robust finite-time control for spacecraft with coupled translation and attitude dynamics is investigated in the paper. An error-based spacecraft motion model in six-degree-of-freedom is firstly developed. Then a finite-time controller based on nonsingular terminal sliding mode control technique is proposed to achieve translation and attitude maneuvers in the presence of model uncertainties and environmental perturbations. A finite-time observer is designed and a modified controller is then proposed to deal with uncertainties and perturbations and alleviate chattering. Numerical simulations are finally provided to illustrate the performance of the proposed controllers.

Suggested Citation

  • Guo-Qiang Wu & Shu-Nan Wu & Zhi-Gang Wu, 2013. "Robust Finite-Time Control for Spacecraft with Coupled Translation and Attitude Dynamics," Mathematical Problems in Engineering, Hindawi, vol. 2013, pages 1-7, April.
    • Handle: RePEc:hin:jnlmpe:707485
    DOI: 10.1155/2013/707485
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