Abstract

This paper presents longitudinal dynamic model construction of a small flying-wing unmanned aerial vehicle (UAV) and a nonlinear control approach to altitude stabilization. The longitudinal dynamic model is constructed by considering its aerodynamics obtained from wind-tunnel experimental results in addition to six-degree-of-freedom dynamics of its body. This paper provides also a fuzzy control approach based on the guaranteed cost control design framework to altitude stabilization. The control approach is compared with the linear LQR design approach. The simulation results demonstrate the utility of our control approach based on the constructed longitudinal dynamic model with the considered aerodynamics.

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