At last , for general bomb using continuously computed release point ( ccrp ) , this paper calculates the ballistic trajectory based on polar coordinates . simulation results demonstrating the feasibility of the approach are presented 在此基礎上,運用基于最小時間的最優(yōu)控制法對得到的幾何路徑進行平滑處理,使其成為可飛路徑并且不改變路徑長度。