Disturbance observer-based attitude control for flight vehicle under actuators output deviation disturbance and sensor noise

Abstract This paper investigates the problem of attitude stabilization control for flight vehicle subject to actuators output deviation disturbance and sensor noise. Firstly, a full order observer is designed which gives an estimation of system state and external disturbances. Furthermore, to ensure attitude error converging to zero, an attitude stabilization control law which is based on output-feedback method is developed. Finally, numerical simulation and semi-physical simulation results are given to demonstrate the effectiveness of proposed attitude stabilization control law.