Abstract: The unmanned helicopter is a strong nonlinear and multi-variable coupled system. Baseing on fuzzy PID control method, this paper proposes a decoupling control for the unmanned helicopter. The method can be applied to the unmanned helicopter's attitude decoupling. It can also search for the best control parameters by using the chaos-optimize theory. The simulation result shows that the proposed control strategy can attain high control performance and good robustness, and can be easily realized.

Key words: unmanned helicopter, fuzzy control, PID control, simulation, chaos-optimize