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A formation flight controller can be used in a UAS fleet to avoid collision, reduce fuel consumption, or to execute interactions between the UASs, such as autonomous aerial refueling. In this paper, an autonomous formation flight (AFF) controller based on non linear dynamic inversion (NLDI) and a non-colliding path planner are proposed. The proposed NLDI AFF extends a NLDI controller found in literature...
This paper presents a nonlinear H∞ controller for the rejection of input disturbances in a fixed wing UAV. The proposed controller acts in all states of a complete nonlinear dynamic model. Simulation results show that the aircraft is successfully maintained in the desired stable condition after two different disturbances: a finite pulse and noise.
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