Wave following control based on robust adaptive method and ADRC for a flying boat

The flying boat, as one of the general aviation aircraft, can take off and land from water, which is widely used in terms of both military and civilian field. It is affected by aerodynamic force and hydrodynamic force, making the controller design a difficult problem. To operate in different wave conditions, the flying boats should avoid dynamic instability phenomena and keep good sea-keeping ability. In this paper, a nonlinear controller is introduced based on robust adaptive method and ADRC (Active Disturbance Rejection Control), weakening the wave influence and achieving the wave following control. Finally, the simulation results in three water conditions demonstrate that the proposed controller can improve the anti-waves capability and reduce the impact from water.