Abstract UAV formation flight has many incomparable advantages with single UAV. In this paper, the “lead aircraft C wing aircraft” formation mode was used. The aerodynamic coupling effect of close formation, which was created by the leads vortex, was analyzed. Then the close formation equivalent aerodynamic model was established, which consists of two flying wing layout UAVs. The sliding mode variable structure control theory was introduced to design the UAV close formation controller. The controller was divided into longitudinal channel, lateral channel and vertical channel. These three channels were designed individually, thereby simplify the design of controller, reduce the parameters adjustment difficulty and explore a new method for close formation keeping research. The simulation results show that the formations geometry is maintained in the face of lead aircraft maneuver, and the feasibility and effectiveness of established UAV close formation flight controller was verified.
Design of UAV Close Formation Controller Based on Sliding Mode Variable Structure
2016-11-09
14 pages
Article/Chapter (Book)
Electronic Resource
English
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