本文从单线阵CCD推扫式成像机理出发,以SPOT5卫星为例,充分利用其辅助数据。阐述了利用改进椭球体模型进行无控制点定位算法,按照构建的成像模型对某地区一景SPOT-5影像进行无控制对地目标定位,获得了实地上41.70298m的平面精度;利用两个控制点对其进行修正后达到了17.1677m的平面精度。
Taking the SPOT5 satellite for example and using its auxiliary data, this article illuminates a positioning algorithm without control point using an improved ellipsoid-model. The plane accuracy is about 41. 70298m. The amended precision is about 17. 1677m after using two control points.