Sliding-Mode-Observer-Based Time-Varying Formation Tracking for Multispacecrafts Subjected to Switching Topologies and Time-Delays

Yuan Yuan, Yingjie Wang, Lei Guo

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

In this article, the time-varying practical formation problem is investigated for a group of spacecrafts subjected to switching topologies, and time-delays. First, a sliding mode observer is designed to estimate the derivatives of time-varying delays. In virtue of the self-stable region, the sufficient condition is provided to guarantee that the error dynamics of the super-twisting sliding mode observer is convergent. Then, the sliding-mode-observer-based formation tracking protocol is designed using position, and velocity of the neighboring agents with time-varying delays. Sufficient conditions are established in terms of average dwell time such that the studied multispacecraft system could achieve the goal of time-varying formation with switching topologies. Finally, an example on the multispacecraft system is provided to illustrate effectiveness of the proposed methodology.

Original languageEnglish
Article number9222221
Pages (from-to)3848-3855
Number of pages8
JournalIEEE Transactions on Automatic Control
Volume66
Issue number8
DOIs
StatePublished - Aug 2021

Keywords

  • Formation tracking
  • multiagent systems
  • sliding mode observer
  • spacecraft system

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