Authors: Nguyen Dinh Dung; Jozsef Rohacs
Addresses: Department of Aeronautics, Naval Architecture and Railway Vehicles, Budapest University of Technology and Economics, 1111 Budapest, Műegyetem rkp. 3, Hungary ' Department of Aeronautics, Naval Architecture and Railway Vehicles, Budapest University of Technology and Economics, 1111 Budapest, Műegyetem rkp. 3, Hungary
Abstract: Currently, the study of unmanned aerial vehicle (UAV) in complex environments is relatively well developed and has many achievements. However, the fact that the landing process of UAVs in complex or unknown environments is a significant challenge for scientists. In this paper, the problem on how to determine the desired landing orbit will be solved. The approach and landing process might be constructed from the straight lines and orbit curves. This study indicates that the UAV has four landing trajectories because the UAV can turn left or right to reach the left or right circle in the landing process. The calculation is based on solving aircraft equations of motion and analytical method. This paper also shows the methodologies to determine the landing routes that the UAV can be landing in any direction or given direction. The simulation results utilising MATLAB software show that the calculated landing orbit is the shortest.
Keywords: unmanned aerial vehicle; UAV; landing trajectory; landing process; desired landing orbit.
International Journal of Sustainable Aviation, 2019 Vol.5 No.1, pp.1 - 18
Received: 24 Nov 2018
Accepted: 15 Jan 2019
Published online: 21 May 2019 *