Precise docking control in unmanned aircraft vehicle automated aerial refueling

The control scheme and strategy for unmanned aircraft vehicle automated aerial refueling were proposed based on analysis of the vortex effect of tank and the free oscillation of drogue. The improved reference trajectory generator and trajectory tracking controller for receiver were used for automated aerial refueling precise docking control. The linear quadratic regulator method was used to design the trajectory tracking controller, and all kinds of disturbance were considered. The results of simulation show this guidance control method has the capacity for speeding up system response and restraining disturbance; Furthermore, it meets the requirement of automated aerial refueling.