预定航迹 meaning in English

preset flight path
preset pattern

This thesis uses fuzzy changing the gain proportion guidance to control the yaw angle v and the pitching angle , and to realize following track , with the predetermined track , which had been designed by hierarchical track planning with voronoi diagram
本文在利用voronoi图的分层航迹规划,规划出预定航迹,并利用模糊变增益比例制导律控制导弹的偏角v和弹道的倾角,实现航迹跟踪。