A Kind of Adaptive Backstepping Sliding Model Controller Design for Hypersonic Reentry Vehicle

In order to solve a class of hypersonic vehicle nonlinear multi-input and multi-output (MIMO) systems control problem, a new kind of adaptive controller is designed in this paper. Backstepping is used to build the control law. To ensure the stability of each uncertain subsystem in each step, a virtual zero-order controller is given in sliding surface design, which can guarantee the robustness. A second-order filter is utilized to replace virtual input to avoid the huge computation complexity in multi-step derivatives. The effectiveness of the control law is verified by simulation even under deep uncertainty. The results suggest the feasibility of this method.

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