Department Publications

This paper describes the development of a quadrotor fixed-wing hybrid unmanned aerial vehicle (UAV). By combining the flying qualities of quadrotor UAV and that of fixed-wing UAVs it is possible to achieve superior flying qualities. This way, the vertical take-off and landing capability of quadrotors and the long endurance of fixed-wing UAVs have been put together, while eliminating the disadvantages of both of these UAV types. The proposed hybrid drone has shown exciting performance in taking-off, cruising and landing fully autonomously. Control transition from quadrotor to fixed-wing and backwards have been analyzed. Sky Scout fixed-wing drone has been used to build the hybrid UAV, and the performance has been successfully demonstrated through flight tests. This paper precent the complete design of a quadrotor fixed-wing hybrid aerial vehicle with modelling, simulation and experimental verification.

In this paper, a feasibility study for construction and control of a novel design of a Multi-quadrotor unmanned aerial vehicle (UAV) is presented. This novel concept tests four identical Quadrotors assembled in a bigger cross structure. And, it also tests the ability of using the same controller that is used to control a single quadrotor to fly the novel design of cross assembled four quadrotor UAV. The main objective here is to improve redundancy and robustness and load carrying capacity of quadrotor UAVs. Even though there are four quadrotors, there is only one controller involves. When each individual Quadrotor works on a certain flight maneuver, it is expected that the assembled UAV of four of these in a cross structure to also be able to demonstrate the same maneuver. The prototype of the novel UAV was designed and built, and has been experimentally tested for a proof of concept where it was able to stabilize the …