Construction of Helicopter-loop Simulation System and Model Identification

3-DOF helicopter experimental teaching system components were introduced in the paper and the freedom of three helicopters system modeling were executed by using theoretical modeling method and the equation of state system was educed. The pitch axis for the model identification was introduced by using identification of modern. Application of linear quadratic optimal control strategy designed controller and expatiated that LQR control weighted matrix should followed the basic principles when selecting. The real-time simulation model was built based on SIMULINK environment. The experiment results show that the LQR controller can achieve optimal control, better control of the system, and The system is robust and interference resistance.