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In this paper, we address the hover flight and speed regulation of a quadrotor rotorcraft to perform autonomous navigation. For this purpose, we have developed a vision system which estimates the altitude, the lateral position and the forward speed of the engine during flights. We show that the visual information allows the construction of control strategies for different kinds of flying modes: hover...
This paper presents an original configuration for a small aerial vehicle based on three rotors with fixed-angle propellers. The process of control vectors generation is described, and a detailed mathematical modeling of the aircraft dynamics is presented. We have also proposed a control strategy for full stabilization of the tri-rotor aircraft considering some real constraints specific to small UAVs...
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