Disturbance Observer-Based Adaptive Finite-Time Attitude Tracking Control for Rigid Spacecraft

Jinhui Zhang*, Weishuang Zhao, Ganghui Shen, Yuanqing Xia

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

50 Citations (Scopus)

Abstract

This article proposes two kinds of terminal sliding mode control (TSMC) strategies for implementing the finite-time attitude tracking of spacecraft under environmental disturbances and model uncertainties. First, the integral disturbance observer (IDO) is designed to estimate the disturbances and uncertainties. Second, the IDO-based continuous TSMC (CTSMC) method is developed to achieve active disturbance rejection and better tracking performance. Third, to further mitigate the chattering, a modified TSMC (MTSMC) method is constructed by employing an adaptive method and incorporating a piecewise smooth function. Finally, simulations are performed to show the feasibility of the proposed TSMC laws.

Original languageEnglish
Pages (from-to)6606-6613
Number of pages8
JournalIEEE Transactions on Systems, Man, and Cybernetics: Systems
Volume51
Issue number11
DOIs
Publication statusPublished - 1 Nov 2021

Keywords

  • Adaptive control
  • attitude control
  • finite-time tracking
  • integral disturbance observer (IDO)
  • sliding mode control (SMC)

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