The presence of system strong constraints and large uncertainties in reentry hypersonic vehicles deteriorate the system performance. This paper considers disturbance observer-based sliding manifold predictive control design for a reentry hypersonic vehicle. In the outer loop, a new sliding manifold-based predictive control is proposed to realize reference command tracking. In the inner loop, a nonlinear disturbance observer is adopted to estimate lumped disturbances and a sliding manifold-based predictive control is designed to track the expected signal obtained from the outer loop. The use of sliding manifolds and disturbance observer enhance the control system’s robustness to uncertainties. The mode predictive control approach guarantees the satisfaction of the system constraints. The effectiveness of the proposed algorithm is verified by theoretical analysis and simulations.
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