Trajectory planning for mini unmanned helicopter in obstacle and windy environments
Aircraft Engineering and Aerospace Technology
ISSN: 0002-2667
Article publication date: 4 July 2018
Issue publication date: 12 September 2018
Abstract
Purpose
Obstacle and wind field are common environmental factors for mini unmanned helicopter (MUH) flight. This paper aims to develop a trajectory planning approach guiding MUH to avoid static and dynamic obstacles and to fly in steady uniform or boundary-layer wind field.
Design/methodology/approach
An optimal control model including a nonlinear flight dynamics model and a cubic obstacle model is established for MUH trajectory planning. Radau pseudospectral method is used to generate the optimal trajectory.
Findings
The approach can plan reasonable obstacle-avoiding trajectories in obstacle and windy environments. The simulation results show that high-speed wind fields increase the flight time and fluctuation of control inputs. If boundary-layer wind field exists, the trajectory deforms significantly and gets closer to the ground to escape from the strong wind.
Originality/value
The key innovations in this paper include a cubic obstacle model which is straightforward and practical for trajectory planning and MUH trajectory planning in steady uniform wind field and boundary-layer wind field. This study provides an efficient solution to the trajectory planning for MUH in obstacle and windy environments.
Keywords
Citation
Xiang, J., Shen, T. and Li, D. (2018), "Trajectory planning for mini unmanned helicopter in obstacle and windy environments", Aircraft Engineering and Aerospace Technology, Vol. 90 No. 5, pp. 806-814. https://doi.org/10.1108/AEAT-05-2016-0080
Publisher
:Emerald Publishing Limited
Copyright © 2018, Emerald Publishing Limited