Fast search algorithm of flight program and launch time window for interception anti-missile

The flight program and launch time window of an interception anti-missile are variable with different launch positions and predictive impact points.So it is necessary to find a fast search algorithm to calculate the flight program and the time window in different combat environments to improve the combat capability.In view of this problem,a dynamic model for the interception anti-missile in three-dimensional space,considering the influence factors of the earth rotation,the geostrophic force and the J2 perturbation,is presented.And a fast search algorithm is developed to calculate the flight program and the launch time window based on iterative least square.Simulation results show that this algorithm is valuable in engineering application.