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Fixed-time control strategy for high-speed unmanned system under switching topology

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  • Wang, Xuyang
  • Ning, Xin
  • Wang, Zheng
  • Chen, Zhansheng

Abstract

This paper proposes a fixed-time stability-based control strategy for high-speed unmanned systems (HSUSs) considering practical switching topology scenarios. First, a fixed-time disturbance observer (FixTDO) with initial condition-independent convergence time is designed to handle the system disturbances. Subsequently, an auxiliary system is constructed to address communication switching topology constraints. Furthermore, a fixed-time controller is synthesized to enhance transient performance and system robustness, with a first-order filter incorporated to eliminate differentiation-induced computational divergence. Finally, comparative simulation studies validate the effectiveness and operational feasibility of the proposed algorithm.

Suggested Citation

  • Wang, Xuyang & Ning, Xin & Wang, Zheng & Chen, Zhansheng, 2026. "Fixed-time control strategy for high-speed unmanned system under switching topology," Chaos, Solitons & Fractals, Elsevier, vol. 206(C).
    • Handle: RePEc:eee:chsofr:v:206:y:2026:i:c:s0960077926000433
    DOI: 10.1016/j.chaos.2026.117902
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