光学遥感卫星几何成像模型高精度对地定位技术研究

Research on High-precision Ground Positioning Technology of Geometric Imaging Model of Optical Remote Sensing Satellite

随着航空航天技术的发展,人们对于光学遥感卫星几何成像模型高精度对地定位技术的要求也越来越高。文章从扫描坐标系、瞬时影像坐标系、传感坐标系等方面介绍了光学遥感卫星影像成像所涉及的坐标系及其相互转换;通过严密几何成像模型和通用数学成像模型分析了几何成像模型在高精度定位技术中的作用;最后通过多片影像联合立体定位研究了星历姿态背景下的卫星影像立体定位技术。

With the development of aerospace technology,people have higher and higher requirements for the high-precision ground positioning technology of the geometric imaging model of optical remote sensing satellites.The article introduces the coordinate system and mutual conversion involved in optical remote sensing satellite image imaging from scanning coordinate system,instantaneous image coordinate system,sensor coordinate system,etc.;through rigorous geometric imaging model and general mathematical imaging model,the geometric imaging model is analyzed.The role of high-precision positioning technology;finally,the three-dimensional positioning technology of satellite images under the background of ephemeris attitude is studied through multi-image joint stereo positioning.