天绘一号卫星影像与行时对应关系检查方法研究
发布时间：2018-10-30 16:20
【摘要】：天绘一号卫星是一颗传输型立体测绘卫星,其职能是实现全球无控精确定位。为此,后期处理过程中需要准确获知每行影像摄影时刻的卫星姿态和轨道数据,卫星产品中的行时文件起到了影像与姿轨数据对应的桥梁作用。本文在分析影像数据、行时文件、辅助数据3者间关系的基础上,通过试验方式验证了1A级影像与行时不对应时对产品定位精度的影响,最后提出了一种有效检查影像与行时文件对应关系的方法,并对该方法进行了试验验证。
[Abstract]:Tianyi-1 satellite is a transmission stereo mapping satellite, its function is to achieve global accurate positioning without control. For this reason, the satellite attitude and orbit data of each line of images need to be accurately obtained in the post-processing process, and the line-time files in satellite products act as a bridge between the images and the attitude and orbit data. On the basis of analyzing the relationship among image data, line time file and auxiliary data, this paper verifies the effect of 1A image on product positioning accuracy when the image is not corresponding to row time. Finally, an effective method to check the relationship between image and line time file is proposed, and the method is verified by experiments.
【作者单位】： 中国天绘卫星中心;
【基金】：国家自然科学基金(61303188)
【分类号】：P236
，
本文编号：2300513
[Abstract]:Tianyi-1 satellite is a transmission stereo mapping satellite, its function is to achieve global accurate positioning without control. For this reason, the satellite attitude and orbit data of each line of images need to be accurately obtained in the post-processing process, and the line-time files in satellite products act as a bridge between the images and the attitude and orbit data. On the basis of analyzing the relationship among image data, line time file and auxiliary data, this paper verifies the effect of 1A image on product positioning accuracy when the image is not corresponding to row time. Finally, an effective method to check the relationship between image and line time file is proposed, and the method is verified by experiments.
【作者单位】： 中国天绘卫星中心;
【基金】：国家自然科学基金(61303188)
【分类号】：P236
，
本文编号：2300513
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