Guidance Strategy for Hypersonic Glide Vehicle with Additional Angular Error Approach

Aiming at the precise hand-over issue between the gliding phase and the terminal guidance phase of hypersonic glide vehicle, two lateral guidance laws for gilding phase under hand-over angle and hand-over time constraints are proposed independent of time-to-go and range-to-go prediction. Based on the relative relationship between the vehicle and target, considering the operational requirements of multi-angle attacks, a lateral guidance law under angle constraints is designed with utilizing the sine value of an additional heading angle. Considering the operational requirements of saturated attacks and simultaneous attacks, a lateral guidance law under time constraints using the sine value of an additional azimuth error is designed. Leveraging the dynamic equations of the hypersonic glide vehicle, transforming two guidance laws into control commands for angle of attack and bank angle, achieving precise handover under multiple constraints. The simulation and the vehicles’ modeling in this paper are implemented in the lab’s simulation platform.