卫星在空间环境运转过程中, 测绘相机的几何参数会发生不可预估的变化, 从而对摄影测量定位精度和数据处理精度产生影响。因此, 所有测绘卫星都对星载相机的几何参数进行在轨定标, 监测相机几何参数在轨运行状态下的变化情况。本文着重介绍了“天绘一号”卫星在轨几何定标的内容和采用的方法。

In space environment, it will reduce the precision of the object location and data processing that the unpredictable changes of the surveying camera geometric parameters. For predominating the movement quantity, the in-fl ight calibration is actualized in most surveying and mapping satellite. In this paper, we primary produce the content and method of the in-fl ight calibration of Mapping Satellite-1.