基于面阵分时分视场成像的在轨相对辐射定标方法  

Relative Radiometric Calibration Method for Area-array Sensor Based on Time and View-field Shared Imaging

作　　者：赵竹新 王伟东 王旭康[2] ZHAO Zhuxin;WANG Weidong;WANG Xukang(Instituteof Beijing Remote Sensing Information,Beijing 100086,China;The 53th Research Institute of CETC,Tianjin 300000,China)

机构地区：[1]北京市遥感信息研究所,北京100086 [2]中国电子科技集团公司第五十三研究所,天津300000

出　　处：《无线电工程》2020年第3期210-213,共4页Radio Engineering

基　　金：国家部委基金资助项目~~

摘　　要：光学遥感卫星的辐射定标是卫星数据定量化应用的前提条件,针对静止轨道大面阵光学载荷成像特点,提出一种基于分时-分视场成像的在轨相对辐射定标方法。选取合适的亮、暗均匀场地,通过卫星姿态机动完成整个视场的定标,得到所有探元在轨相对辐射定标系数,可有效解决现有场地难以覆盖卫星视场而带来的在轨相对辐射定标难题。Radiometric calibration of optical remote sensing satellite is the precondition of its quantitative application.Considering the characteristics of GEO large-array sensor,a relative radiometric calibration method based on time and view-field shared imaging is proposed.The method selects proper bright and dark test sites and obtains the relative radiometric calibration parameters of all pixels in the view-field by maneuvering the satellite attitude to accomplish the calibration of the whole view-field,which solves the problems in GEO satellite optical radiometric calibration.

关 键 词：大面阵 静止轨道 光学遥感 相对辐射定标 

分 类 号：O432[机械工程—光学工程]