吉林一号宽幅01C卫星影像的平面精度探究  

Plane Accuracy Analysis of JiLin-1 KF01C Satellite Images

作　　者：祝明 武红宇 ZHU Ming;WU Hongyu(Institute of Photogrammetry and Remote Sensing in Jilin Province,Changchun 130012,China;Changguang Satellite Technology Co.,Ltd.,Changchun 130033,China)

机构地区：[1]吉林省航测遥感院,吉林长春130012 [2]长光卫星技术有限公司,吉林长春130033

出　　处：《测绘与空间地理信息》2023年第12期207-210,共4页Geomatics & Spatial Information Technology

摘　　要：“吉林一号”宽幅01C是2022年5月发射的国产超大幅宽高分辨率对地观测卫星。其标准1级影像的无控条件下定位精度优于20 m(CE90)。为进一步说明其数据产品对高精度应用的适应性,本文基于24景吉林一号宽幅01C卫星影像,使用像素工厂软件的通用卫星处理模块,经过空三加密处理之后纠正生成正射影像,在其上均匀采集检查点,对比分析数据在不同地貌、地形、逻辑传感器的正射影像上采集检查点的中误差,以检测此卫星影像的平面精度。实验测试结果表明,影像平面位置中误差优于0.936 m,满足1∶5000制图的平面精度要求。The JiLin-1 KF01C is a domestic super-wide high-resolution earth observation satellite launched in May 2022.The standard level 1 image has a positioning accuracy of better than 20 m(CE90)without control.In order to further demonstrate the adaptability of its data products to high-precision applications,this article uses 24 images taken by the JiLin-1 KF01C satellite and processed by the Pixel Factory(PF)software.After aerial triangulation processing,the orthophoto is corrected and generated,and check points are uniformly collected on it.By collecting the check points to contrast the mean square errors from different land forms and sensors and use these data to check the plane accuracy of satellite images.The result shows that the plane accuracy of these 24 images from this project is better than 0.936 m and meets the standard for 1∶5000 mapping projects.

关 键 词：吉林一号宽幅01C 几何定位 像素工厂 卫星影像数据生产 平面精度检测 

分 类 号：P231[天文地球—摄影测量与遥感]