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

Authors
  • Gao, HaiLiang1, 2, 3
  • Gu, XingFa1, 3
  • Yu, Tao1, 3
  • Gong, Hui1, 2, 3
  • Li, JiaGuo1, 2, 3
  • Li, XiaoYing1, 3
  • 1 Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University, State Key Laboratory of Remote Sensing Science, Beijing, 100101, China , Beijing (China)
  • 2 Graduate University of Chinese Academy of Sciences, Beijing, 100039, China , Beijing (China)
  • 3 Center for National Spaceborne Demonstration, Beijing, 100101, China , Beijing (China)
Type
Published Article
Journal
Science China Technological Sciences
Publisher
SP Science China Press
Publication Date
Aug 12, 2010
Volume
53
Issue
11
Pages
3119–3128
Identifiers
DOI: 10.1007/s11431-010-4113-2
Source
Springer Nature
Keywords
License
Yellow

Abstract

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.

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