Coordinated adaptive control of hypersonic reentry vehicle considering channel coupling

The paper proposes a coordinated adaptive control for the hypersonic reentry vehicle with channel coupling and system uncertainties. Using the hierarchical sliding mode scheme, the coordinated design is applied to ensure flight safety. Once the yawing moment is not enough to meet the control requirement, the system will coordinate the channel moment distribution, and furthermore, the flight attitude can be stabilized with yawing moment compensation. To obtain the high-precision uncertain approximation, the online recorded data-based prediction error is constructed as one learning performance index, which is introduced into the updated law. The uniformly ultimately boundedness of the system signals is guaranteed via the Lyapunov approach. Through the simulation test, the results show that the proposed approach can maintain a stable attitude and present the adaptation to the system uncertainty.