星下点轨迹有限范围照相目标的快速计算

A Simplified Arithmetic of Photographic Target in Given Area about Ground Track of Satellite

在基于卫星平台实施对地画幅式照相时,针对预先确定的地面对象目标集,根据当前提供的轨道预报参数,准确选择随遇可拍的对象目标点子集,并确定每个选出对象的开关机时间。提出了自动快捷计算的工程算法。介绍了软件编程和工程应用的实践成果。

A simplified arithmetic, software programming and project application are given in this paper, which are the solution to select ground target subset from the given target set and calculate the imaging time, on the basis of the given orbit predict parameters.