Glide guidance method for maneuverable reentry vehicle against time-sensitive target

According to the requirements for fighting against time-sensitive target under multiple constraints, the glide guidance methods for maneuverable reentry vehicle based on axisymmetric skid-to-turn (STT) control are studied to propose an online self-contained guidance method implemented both longitudinally and laterally. Longitudinally, based on the combined design of height-range (H-R) profile and height-velocity (H-V) profile, reference trajectory is generated rapidly within the feasible region that satisfies constraints, modified in real time according to target changes and tracked. Laterally, the closed-loop guidance method is inferred by bringing in the needed velocity and target location change information to control the velocity and track target location. As shown by simulation result, this method can take into account both the rapidity of trajectory generation and the changes in time-sensitive target location to complete the guidance mission on the conditions of satisfying the requirements of process and terminal constraints.