Improved predictor-corrector algorithm of reentry gliding vehicle based on adaptive cross-range corridor
In view of the problem of the separation of avoidance logic and guidance logic in predictor-corrector guidance algorithm for reentry gliding vehicle(RGV),a fusion algorithm based on adaptive cross-range corridor is proposed.Firstly,the avoidance logic is dynamically introduced,through the intersection relationship between the lateral motion trajectory of the aircraft and the no-fly zone.At the same time,the effective mapping range of the no-fly zone is proposed to quantify the no-fly zone area that affects the flight path.Finally,the adaptive cross-range corridor is designed to dynamically adjust the corridor boundary,control the overturn of the pitch angle,realizing the integration of the avoidance logic and the lateral guidance logic.Simulation results show that the aircraft can achieve effective guidance for different no-fly zones under the method,with certain robustness to reentry disturbance,and have less times of roll angle turnover while ensuring guidance accuracy than the algorithm designed by the separation of guidance logic and avoidance logic.
predictor-corrector algorithmadaptive cross-range corridoreffective mapping cross range of no-fly zone
万方数据
维普
