Aircraft detection 2 Antennas 2 Disturbance observer 2 Navigation 2 Observer-based 2 Unmanned aerial vehicles (UAV) 2 disturbance observer Aerial vehicle 1 Aircraft control 1 Backstepping 1 Backstepping control 1 Controllers 1 Extended state observer 1 Finite-time convergence 1 Finite-time tracking control 1 Manipulators 1 Non-singular terminal sliding mode controls 1 Non-singular terminal sliding modes 1 Performance 1 Position control 1 Quad rotors 1 Quadcopter unmanned aerial vehicle 1 Quadrotor unmanned aerial vehicles 1 Robot applications 1 Sliding mode control 1 State disturbance 1 Tracking control approach 1 Trajectory tracking control 1 Trajectory-tracking 1 Wind perturbations 1