Recent advances in technology have lead to growing interest in robotic application. More recently, a growing interest in unmanned aerial vehicles (UAVs) has been shown among the research community. Being able to design a vertical takeoff and landing (VTOL)-UAV, which is highly maneuverable and extremely stable, is an important contribution in the field of aerial robotics since potential applica...

This paper presents a nonlinear controller for terrain following of a vertical take-off and landing vehicle (VTOL). The VTOL vehicle is assumed to be a rigid body, equipped with a minimum sensor suite (camera, IMU and barometric altimeter) maneuvering over a textured rough terrain made of a concatenation of planar surfaces. Assuming that the forward velocity is separately regulated to a desired...

TRANSITIONS BETWEEN HOVER AND LEVEL FLIGHT FOR A TAILSITTER UAV Stephen R. Osborne Department of Electrical and Computer Engineering Master of Science Vertical Take-Off and Land (VTOL) Unmanned Air Vehicles (UAVs) possess several desirable characteristics, such as being able to hover and take-off or land in confined areas. One type of VTOL airframe, the tailsitter, has all of these advantages, ...

This paper provides a broad perspective and analysis of the work done in control hybrid convertible unmanned aerial vehicles (UAVs) for main existing designs. These flying machines are capable vertical take off landing (VTOL) helicopter mode able to transition high-speed forward flight airplane vice versa. aims at helping engineers researchers develop systems VTOL UAVs. To this end, historical ...

Vertical Take-Off and Landing (VTOL) vehicles is a special class of Unmanned Aerial Vehicles (UAVs). This paper summarizes the current stage of VTOL design and market, and discusses VTOL growth and technical performance comparison. A database is presented to provide information concerning VTOL technical characteristics (maximum speed, payload, range, endurance, propulsion configurations), and V...

Tail-sitter unmanned aerial vehicles (UAVs) are promising vertical takeoff and landing (VTOL) UAV suitable for multi-missions but the road to commercialization of tail-sitter UAVs is tortuous. This paper aims provide a systematic design methodology present development process novel biplane quadrotor platform named TW10 accelerate this type UAV. All choices trade-offs in aerodynamics, structure,...

Hybrid unmanned aerial vehicles (UAVs) provide an interesting combination of the vertical takeoff and landing (VTOL) capabilities rotary-wing (RW) efficient forward flight fixed-wing (FW) vehicles. The employed controllers must be able to handle highly nonlinear dynamics changing control authorities resulting from this combination, especially during transition between two modes. In paper, a mod...