In this paper, an autonomous takeoff and landing control strategy is designed and implemented for a prototype coaxial unmanned helicopter with ducted fan configuration. The control strategy is designed such that longitudinal and lateral controls use ground forces, attitude and drifting feedbacks. Vertical control employs takeoff and landing decision and vertical velocity control is based on altitude tracking. Ground forces feedback is used to balance longitudinal forces and moments during liftoff effectively cancelling all ground forces. Attitude and drifting feedbacks are used to balance the longitudinal and lateral movements of the helicopter during takeoff and landing. The flight control strategy is successfully verified during flight tests.
Autonomous takeoff and landing control for a prototype unmanned helicopter
Autonome Start- und Landeregelung für den Prototyp eines unbemannten Hubschraubers
Control Engineering Practice ; 18 , 9 ; 1053-1059
2010
7 Seiten
Article (Journal)
English
Optimization of helicopter takeoff and landing
AIAA | 1989
|Rapid takeoff-landing unmanned aerial vehicle and takeoff and landing control method thereof
European Patent Office | 2020
|European Patent Office | 2024
|British Library Conference Proceedings | 2005
|Autonomous system for unmanned aerial vehicle landing, charging and takeoff
European Patent Office | 2020
|