民用遥感卫星载荷在轨辐射定标与定量应用  

In-orbit Radiometric Calibration and Quantitative Application for Civil Remote Sensing Satellite Payloads

作　　者：韩启金[1] 潘志强[1] 王爱春[1] 

机构地区：[1]中国资源卫星应用中心,北京100094

出　　处：《航天返回与遥感》2013年第2期57-65,共9页Spacecraft Recovery & Remote Sensing

基　　金：国家863计划重点项目(2009AA122100)资助;国家863计划重点项目(2012AA12A302)资助

摘　　要：文章总结了中国民用卫星载荷特点和现有定标技术概况,确立了适合中国遥感卫星光学载荷特点的在轨场地定标算法流程,并成功应用于民用遥感卫星的辐射性能在轨检校分析;以民用遥感卫星数据为基础,研究典型的陆地特征参量地表反射率和地表温度反演算法,并基于初级产品开展必要的应用示范研究。结果表明:文章规定的定标方法可准确检校卫星载荷在轨辐射性能变化情况,获取的定标系数精度满足后续定量应用的需要,基于中国遥感数据的应用示范效果良好。This paper summarizes the characteristics of China＇s civil satellite payloads and the research status of radiometric calibration, and ascertains the calibration method flow that suits China＇s civil satellite payloads. We perform the calibration and validation of civil satellite by using above mentioned methods. The retrieval algorithm of land surface property parameters, such as reflectance and temperature, are researched based on the civil satellite remote sensing data. At last, a application demonstration of land surface products is performed. The result shows that the method stipulated in the paper is appropriate to in-orbit calibration and validation of satellite payloads, and the calibration coefficients are accurate for quantitative application, the demonstration result based on our country remote sensing data is very well.

关 键 词：陆地观测卫星 辐射定标 定量化 应用示范 载荷 航天遥感 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]