Attitude control of a helicopter

Helicopter dynamics system is a strongly coupled multi-variable nonlinear system, and the actual maneuvers in the presence of many uncertain factors. Therefore, in the design of helicopter flight controller, in order to ensure the safety of helicopter flight, improve the efficiency of completing the mission and reduce driver´s work burden, it is not enough to make the helicopter for anti-jamming capability, while the internal parameters of the helicopter model perturbations have a strong robustness. This paper describes the mathematical model of a helicopter first, providing a basis for making for the relevant control methods; Then, this article describes the state feedback pole assignment based on decoupling control and robust H∞ control theory´s concept and mathematical foundations; Finally, it proposes a design method of robust H∞ controller, designs concrete H∞ controller for the helicopter model specifically, and builds a complete decoupling of robust H∞ control system.