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The purpose of this paper is to introduce a complex nonlinear model to a novel tandem ducted fan vehicle which adopted a structure of coaxial rotor and cyclic pitch system, considering aerodynamic coupling, disturbing between the upper and the lower rotor, and special aerodynamic characteristics of duct. On this basis, a robust hover control system has been designed to attitude control using H-infinite...
This paper focuses on modeling and robust hover control system design for a novel multi-tandem ducted fan vehicle. A comprehensive nonlinear model for this unmanned aircraft, considering main aerodynamic coupling and actuator dynamics, is first presented. For the sake of low order controllers, the two-layer controller structure with only three-order controllers, is adopted to construct a flight control...
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