HJ-1A HSI on-orbit radiometric calibration and validation research  

作　　者：GAO HaiLiang GU XingFa YU Tao GONG Hui LI JiaGuo LI XiaoYing 

机构地区：[1]State Key Laboratory of Remote Sensing Science,Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University,Beijing 100101,China [2]Graduate University of Chinese Academy of Sciences,Beijing 100039,China [3]Center for National Spaceborne Demonstration,Beijing 100101,China

出　　处：《Science China(Technological Sciences)》2010年第11期3119-3128,共10页中国科学(技术科学英文版)

基　　金：supported by the International Science and Technology Cooperation Program of China (Grant No 2008DFA21540);the Chinese Defence Advance Research Program of Science and Technology (Grant No 07K00100KJ) ;the National Hi-Tech Research and Development Pro-gram of China ("863" Project)

摘　　要：The calibration experiment data at Dunhuang radiometric calibration site in October, 2008 were used to achieve the on-orbit radiometric calibration for HJ-1A hyper spectral imager (HSI). Two other field experiments data were used to validate the Dunhuang calibration results. One field experiment took place in Inner-Mongolia, China in September, 2008, and the other field experiment took place in Lake Frome, Australia in February, 2009. Finally, the ‘confidence interval of calibration error’ concept was put forward for quantitatively computing the calibration coefficient error confidence interval. The results showed that the Dunhuang calibration results in 2008 had high reliability. The confidence intervals of calibration error for all HSI channels were between 2% to 12%, which could satisfy the requirement of the HSI quantitative applications.The calibration experiment data at Dunhuang radiometric calibration site in October, 2008 were used to achieve the on-orbit radiometric calibration for HJ-1A hyper spectral imager (HSI). Two other field experiments data were used to validate the Dunhuang calibration results. One field experiment took place in Inner-Mongolia, China in September, 2008, and the other field experiment took place in Lake Frome, Australia in February, 2009. Finally, the ‘confidence interval of calibration error’ concept was put forward for quantitatively computing the calibration coefficient error confidence interval. The results showed that the Dunhuang calibration results in 2008 had high reliability. The confidence intervals of calibration error for all HSI channels were between 2% to 12%, which could satisfy the requirement of the HSI quantitative applications.

关 键 词：HJ-1A hyper spectral imager(HSI) radiometric calibration VALIDATION confidence interval 

分 类 号：P237[天文地球—摄影测量与遥感]