Robust control synthesis for an unmanned helicopter

Abstract

Controller synthesis for unmanned helicopters with minimum initial information about their parameters of their mathematical models is considered in this paper. The unknown parameters and system nonlinearity are considered as external disturbances. Two methods are proposed to solve this problem: design of the controller using feedback with compensation for disturbances estimated using observers, or design of fuzzy controllers based on the approach of Mamdani, and results of the controller of the first method. The paper presents a comparative study of the Raptor helicopter dynamics with the proposed control laws and with wind disturbances.