Nonlinear receding horizon sub-optimal guidance law for the minimum interception time problem

In this paper, a state feedback law that yields a sub-optimal solution of t he minimum interception time problem is proposed. Sub-optimality is defined over the potential interception times that correspond to the system-compat ible parabolic trajectories. Such trajectories are computed at each samplin g instant and the whole procedure is reiterated in a receding horizon manne r yielding a piece-wise continuous dynamic state feedback law. Simulations were proposed and the robustness was tested against the modelling errors. ( C) 2001 Elsevier Science Ltd. All rights reserved.