A Minimum Snap Flight Transition Strategy for Quadrotor Tail-Sitter UAVs: Altitude-Hold Transition

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ID: 310000
2025
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Abstract
This study examines the altitude-hold flight mode transition problem for tail-sitter unmanned aerial vehicles (UAVs) between hovering and level flight. The problem is significantly challenging because of the complicated nonlinear aerodynamics of tail-sitter UAVs during the transition process. To address this problem, this article proposes a minimum snap trajectory generation method and a model predictive control (MPC)-based tracking strategy. First, the generated trajectories are highly applicable, satisfying the dynamic constraint. Second, MPC tracks full states by solving a finite-horizon optimization problem at each step, yielding the optimal future behavior based on the system model. A numerical simulation was conducted in which the altitude changed by less than 1.4 m during the entire transition process.
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Authors Xia, Yifan
Journal Frontiers in surgery
Year 2025
DOI
10.3389/arc.2025.15466
URL
https://www.frontierspartnerships.org/journals/aerospace-research-communications/articles/10.3389/arc.2025.15466/full
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