Hovering control of a quadrotor

This paper deals with the hovering control of a quadrotor. First, we derive the quadrotor model using the Euler-Lagrange equation and perform experiment to identify the model parameter. Second, we divide a quadrotor system into two subsystems: the attitude system and the altitude system. For attitude control, we use PID control method, and for the altitude control, we use dynamic surface control (DSC) method. From the Lyapunov stability theory, we prove that all signals of a quadrotor system are uniformly ultimately bounded (UUB). Finally, we present the simulation and experimental results to verify the effectiveness of the proposed control method.