Altitude control algorithm design of the quadrotor aircraft

In order to control the altitude of the quadrotor aircraft, an altitude control algorithm was proposed. Firstly, on the basis of analyzing the principle of quadrotor flight, a mathematical model of quadrotor was established. Secondly, feedforward control link and transition process link were arranged to PID feedback controller to enhance the control performance and altitude control precision of the quadrotor aircraft. Finally, the experimental results show that this control algorithm can well control the altitude of the quadrotor aircraft.