Performance Improvement of an Unpowered Auto-landing Guidance for UAV Under Steady Wind Conditions
Abstract
The unpowered landing of an aircraft is a highly risky process because it can only use kinetic and potential energy. Especially, if a landing site is designated, the risk of unpowered landing is dramatically increased due to the limitation of available energy. For this reason, an appropriate method is required for safe landing and many studies have been conducted to accomplish this purpose. In this paper, we study a scheme to improve the performance of an unpowered auto-landing for an unmanned aerial vehicle. The method presented in this paper focuses on the performance improvement of an unpowered auto-landing under steady wind conditions. To achieve this, simple modifications of the autopilot which complement the heading controller and the flight-path angle controller are proposed. The proposed method is evaluated by numerical simulation.
- Publication:
-
International Journal of Aeronautical and Space Sciences
- Pub Date:
- March 2020
- DOI:
- 10.1007/s42405-019-00192-3
- Bibcode:
- 2020IJASS..21..210K
- Keywords:
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- Unmanned aerial vehicle;
- Auto landing;
- Unpowered landing;
- Terminal velocity estimation;
- Steady wind;
- Wind limitation