Adaptive Finite-Time Control for Attitude Tracking of Spacecraft under Input Saturation

Yong Guo, Bing Huang, Shuo Wang, Ai Jun Li, Chang Qing Wang

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

This paper investigates two robust finite-time controllers for the attitude control of the spacecraft by using a modified terminal sliding mode surface. With the use of terminal sliding mode control and adaptive control, the controllers under input saturation can compensate both external disturbances and the uncertainty of the model parameters. By using the first and the second controller, the closed-loop system is finite-time stability and practical finite-time stability, respectively. As the system model is based on the rotation matrix, both controllers are without unwinding. Numerical simulations are given to demonstrate the effectiveness of the finite-time controllers.

Original languageEnglish
Article number04017086
JournalJournal of Aerospace Engineering
Volume31
Issue number2
DOIs
StatePublished - 2018

Keywords

  • Adaptive control
  • Finite-time stability
  • Input saturation
  • Rotation matrix
  • Terminal sliding mode control

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