中国物理B ›› 2016, Vol. 25 ›› Issue (9): 90701-090701.doi: 10.1088/1674-1056/25/9/090701

• GENERAL • 上一篇    下一篇

Calibration chain design based on integrating sphere transfer radiometer for SI-traceable on-orbit spectral radiometric calibration and its uncertainty analysis

Wei-Ning Zhao(赵维宁), Wei Fang(方伟), Li-Wei Sun(孙立微), Li-Hong Cui(崔立红), Yu-Peng Wang(王玉鹏)   

  1. 1. University of Chinese Academy of Sciences, Beijing 100049, China;
    2. Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
  • 收稿日期:2016-02-17 修回日期:2016-05-19 出版日期:2016-09-05 发布日期:2016-09-05
  • 通讯作者: Yu-Peng Wang E-mail:wangyp@ciomp.ac.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 41474161) and the National High-Technology Program of China (Grant No. 2015AA123703).

Calibration chain design based on integrating sphere transfer radiometer for SI-traceable on-orbit spectral radiometric calibration and its uncertainty analysis

Wei-Ning Zhao(赵维宁)1,2, Wei Fang(方伟)2, Li-Wei Sun(孙立微)1,2, Li-Hong Cui(崔立红)1,2, Yu-Peng Wang(王玉鹏)2   

  1. 1. University of Chinese Academy of Sciences, Beijing 100049, China;
    2. Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
  • Received:2016-02-17 Revised:2016-05-19 Online:2016-09-05 Published:2016-09-05
  • Contact: Yu-Peng Wang E-mail:wangyp@ciomp.ac.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 41474161) and the National High-Technology Program of China (Grant No. 2015AA123703).

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摘要： In order to satisfy the requirement of SI-traceable on-orbit absolute radiation calibration transfer with high accuracy for satellite remote sensors, a transfer chain consisting of a fiber coupling monochromator (FBM) and an integrating sphere transfer radiometer (ISTR) was designed in this paper. Depending on the Sun, this chain based on detectors provides precise spectral radiometric calibration and measurement to spectrometers in the reflective solar band (RSB) covering 300-2500 nm with a spectral bandwidth of 0.5-6 nm. It shortens the traditional chain based on lamp source and reduces the calibration uncertainty from 5% to 0.5% by using the cryogenic radiometer in space as a radiometric benchmark and trap detectors as secondary standard. This paper also gives a detailed uncertainty budget with reasonable distribution of each impact factor, including the weak spectral signal measurement with uncertainty of 0.28%. According to the peculiar design and comprehensive uncertainty analysis, it illustrates that the spectral radiance measurement uncertainty of the ISTR system can reach to 0.48%. The result satisfies the requirements of SI-traceable on-orbit calibration and has wider significance for expanding the application of the remote sensing data with high-quality.

关键词: SI-traceable calibration, on-orbit high-accuracy transfer chain, integrating sphere transfer radiometer, uncertainty analysis

Abstract: In order to satisfy the requirement of SI-traceable on-orbit absolute radiation calibration transfer with high accuracy for satellite remote sensors, a transfer chain consisting of a fiber coupling monochromator (FBM) and an integrating sphere transfer radiometer (ISTR) was designed in this paper. Depending on the Sun, this chain based on detectors provides precise spectral radiometric calibration and measurement to spectrometers in the reflective solar band (RSB) covering 300-2500 nm with a spectral bandwidth of 0.5-6 nm. It shortens the traditional chain based on lamp source and reduces the calibration uncertainty from 5% to 0.5% by using the cryogenic radiometer in space as a radiometric benchmark and trap detectors as secondary standard. This paper also gives a detailed uncertainty budget with reasonable distribution of each impact factor, including the weak spectral signal measurement with uncertainty of 0.28%. According to the peculiar design and comprehensive uncertainty analysis, it illustrates that the spectral radiance measurement uncertainty of the ISTR system can reach to 0.48%. The result satisfies the requirements of SI-traceable on-orbit calibration and has wider significance for expanding the application of the remote sensing data with high-quality.

Key words: SI-traceable calibration, on-orbit high-accuracy transfer chain, integrating sphere transfer radiometer, uncertainty analysis

中图分类号:  (Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing)

  • 07.07.Df
07.60.Dq (Photometers, radiometers, and colorimeters) 85.60.Bt (Optoelectronic device characterization, design, and modeling) 42.87.-d (Optical testing techniques)