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.
关键词
预测校正算法/自适应横程走廊/禁飞区有效映射横程
Key words
predictor-corrector algorithm/adaptive cross-range corridor/effective mapping cross range of no-fly zone
维普
万方数据