A Strategy of Midcourse and Terminal Guidance Handover in Combined Guidance

A program is designed to resolve the problem of hand-over between midcourse guidance and terminal guidance in the combined guidance.This program can complete the seeker handover and trajectory handover simultaneously.The midcourse guidance law is designed based on the variable structure control theory to ensure the seeker can point to the target at the end of midcourse guidance.The transfer guidance law is used to complete the transition of navigation coefficient to link up the midcourse and terminal course trajectory smoothly.Simulation results show that the program can be applied to complex long-distance guidance.