Integrated flight control problem on decentralized sliding modes

The paper proposes applying sliding mode stabilization to aircraft flight controls. The nonlinear multiple input, multiple outputs problem of controlling aerodynamic angles, trajectory angles, attitude angles and energy, is addressed by methods of variable structure control. The decentralized algorithm of sliding mode control has been applied to the stabilization of the four following channels: pitch, roll, yaw and energy channels. The output stabilization errors of each channel have the desired response characteristic and are perfectly decoupled from the perturbation of the other channels, and from external perturbations while the results obtained are relative to aircraft configured with conventional nonredundant aerodynamic controls, and with nonorientable engine nozzles, they could be extended easily to redundant controls