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This paper concerns with the autonomous flight control system of an unmanned helicopter, which is combined with reinforcement learning based neuro-controller. We assume that PID (proportional-integral-derivative) type, linear feedback controller is predesigned and it can stabilize the system with limited performance. The conservative control behavior is improved by the synthesis of the poor feedback...
This paper presents a guidance law to operate intelligence, surveillance and reconnaissance missions using cooperative UAVs under known static threats. The guidance law is classified into three levels. In level 1 as the highest level, waypoints of UAVs are selected using different cost functions. In level 2, preliminary paths are generated using the A* algorithm for avoiding threats, and approaching...
A blended wing body (BWB) UAV has several aerodynamic advantages of lower wetted area to volume ratio and lower interference drag as compared to conventional type UAV. This paper is focused on the design of the autonomous flight control system for a BWB UAV. An onboard control system is developed by using a powerful computer, navigation sensors and communication modem. The autopilot of the BWB UAV...
Using Fisher Information Matrix(FIM), the optimal trajectory which is generated in order to localize the specific target is obtained as optimal problem. However, it is more effective to use more vehicles with various sensor in order to gather information about target. So, since we just check how multi vehicles with various sensors by cooperative maneuver affect the trajectory in this paper. Analytical...
This paper discussed a nonlinear trajectory tracking problem for stratospheric airship platform and a novel approach of the nonlinear control scheme is applied. Target airship model is the 200 m stratospheric airship platform capable of flying upto 20 km altitude. Full 6-DOF nonlinear dynamics of unmanned airship are defined according to the target airshippsilas configuration including the moving...
In this paper, a ducted fan Uninhabited Aerial Vehicle(UAV), being capable of vertical take-off and landing, is studied to understand characteristics and control of the vehicle. The ducted fan UAV is unstable and susceptible to wind due to its external structural shape. Also the ducted fan UAV must change the attitude to gain speed, so it has different characteristics with respect to velocity. To...
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