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June 19, 2026Transactions of the Institute of Measurement and Control

Nonsingular fixed-time sliding mode control of quadrotor UAV with disturbance estimation via adaptive predefined-time observer

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Authors

YZYunhao ZhaiJGJiwei GaoSZShaofei Zang

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Overview

Randomized trial investigates trajectory-tracking control in quadrotor UAVs, indicating fast tracking performance despite disturbances.

Key Points

  • This study aims to enhance trajectory tracking in quadrotor UAVs by addressing external disturbances using a nonsingular fixed-time control method.
  • Developed a nonsingular fixed-time sliding mode control scheme.
  • Integrated an adaptive predefined-time disturbance observer to estimate disturbances.
  • Tested simulation results demonstrating control effectiveness and robustness.
  • Achieved fast fixed-time convergence in trajectory tracking.
  • Demonstrated strong robustness against unknown disturbances.
  • Reduced chattering during control performance.

Cite This Study

Zhai et al. (2026) studied this question.

synapsesocial.com/papers/6a34dfcd65a5b0777af2ec86https://doi.org/10.1177/01423312261454412
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