摘要
针对航天器升力式再入返回地球过程中地面再入区域面积及其进入目标区域部分面积计算的实际工程需求,将平面多边形面积计算中常用的有向面积概念扩充到球面之上,给出了一种考虑球面形状的面积计算方法,计算结果表明该方法是可行的,并归纳出了该方法的优缺点及使用建议。研究结果对航天器再入区域相关计算有一定的参考意义。
Aiming at the actual engineering requirements for the calculation of the landing footprint area and the area entering the target region during the spacecraft lift-type reentry return to the earth,the concept of directed area commonly used in the calculation of planar polygonal area is extended to a sphere.An area calculation method considering the spherical shape is proposed.The calculation results show that the method is feasible,and the advantages and disadvantages of the method and the use recommendations are given.The research results have some certain reference significance for the calculation of spacecrafts landing footprint area.
作者
淡鹏
石峰
王丹
王奥
DAN Peng;SHI Feng;WANG Dan;WANG Ao(State Key Laboratory of Astronautic Dynamics,Xi’an 710043,China;Xi’an Satellite Control Center,Xi’an 710043,China)
出处
《弹箭与制导学报》
北大核心
2022年第1期5-8,共4页
Journal of Projectiles,Rockets,Missiles and Guidance
基金
国家自然科学基金(11772356)资助。
关键词
再入区域
面积覆盖
球面三角形
再入
landing footprint
area coverage
spherical triangle
reentry
