无地面控制点卫星摄影测量高程误差估算

Elevation error estimation of satellite photogrammetry without ground control point

本文推导了星载测定外方位元素参与下,无地面控制点卫星摄影测量高程误差估算公式。分别按姿态变化率为1 0 -6°/s的二线阵CCD推扫式影像、姿态变化率低于1 0 -6°/s的二线阵CCD推扫式影像以及LMCCD推扫式影像进行推算。各个估算公式均给出算例,供设计无地面控制卫星摄影测量工程应用。

This paper deduces elevation error estimating formulae of the satellite photogrammetry,which is concerned with elements of exterior orientation that measured by spaceborne sensors.According to the attitude stability of two-line array CCD pushbroom image at 10 -6o/s,or lower than 10 -6o/s and the attitude stability of so called LMCCD (line-matrix CCD camara) pushbroom image lower than 10 -6o/s,the authors deduce and calculate for different cases respectively,and present an example for each estimating formula for the application of designing satellite photogrammetry engineering system without ground control point.