Path-Following Guidance for Unmanned Aerial Vehicle with Bounded Lateral Acceleration

• URL: http://arxiv.org/abs/2603.27177v1
• Date: Sat, 28 Mar 2026 07:28:18 GMT
• Title: Path-Following Guidance for Unmanned Aerial Vehicle with Bounded Lateral Acceleration
• Abstract summary: This paper addresses the three-dimensional path-following guidance problem for unmanned aerial vehicles under explicit actuator constraints.<n>A nonlinear guidance framework is developed employing a nested saturation-based control technique.<n>The proposed guidance strategy guarantees bounded control inputs while ensuring exponential convergence of cross-track errors to zero.
• Score: 1.4477778415264126
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: This paper addresses the three-dimensional path-following guidance problem for unmanned aerial vehicles under explicit actuator constraints. Unlike conventional approaches that assume unbounded control inputs or handle saturation heuristically, the proposed method incorporates bounded lateral acceleration directly into the guidance design. A nonlinear guidance framework is developed employing a nested saturation-based control technique. The proposed guidance strategy guarantees bounded control inputs while ensuring exponential convergence of cross-track errors to zero. The formulation is applicable to general smooth paths and is systematically extended from planar to three-dimensional scenarios using a path-tangent coordinate framework. Rigorous stability analysis based on Lyapunov theory establishes convergence and feasibility properties of the closed-loop system. Numerical simulations on representative paths, including straight-line, circular, and sinusoidal paths, demonstrate that the proposed method achieves superior tracking performance, reduced control effort, and robustness against disturbances compared to existing guidance laws. The simplicity of the design and its compatibility with practical actuator limits make it suitable for real-world UAV applications.

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