多光谱遥感器带外响应的测量、校正及精度验证

大气与环境光学学报 ›› 2017, Vol. 12 ›› Issue (6): 456-464.

多光谱遥感器带外响应的测量、校正及精度验证

康晴1,2, 袁银麟1*, 李健军1, 郑小兵1, 吴浩宇1, 翟文超1, 钱鸿鹄1,2, 骆冬根1, 杨伟锋1, 洪津1

（1 中国科学院安徽光学精密机械研究所中国科学院通用光学定标与表征技术重点实验室，安徽合肥 230031；
2 中国科学技术大学，安徽合肥 230026）

收稿日期:2016-08-23 修回日期:2016-10-11 出版日期:2017-11-28 发布日期:2017-11-13
通讯作者: 康晴（1988-）,女，汉族，安徽蒙城人，硕士研究生，主要从事光学遥感器偏振定标方法研究。 E-mail:E-mail:ylyuan@aiofm.ac.cn
作者简介:康晴（1988-）,女，汉族，安徽蒙城人，硕士研究生，主要从事光学遥感器偏振定标方法研究。
基金资助:
Supported by National High Technology Research and Development Program of China（国家863计划，2013AA7031021，2015AA123702）, National Natural Science Foundation of China（国家自然科学基金，61275173）

Measurement, Correction and Precision Verification of Out-of-Band Response for Multispectral Remote Sensor

KANG Qing1,2, YUAN Yinlin1*, LI Jianjun1, ZHENG Xiaobing1, WU Haoyu1, ZHAI Wenchao1, QIAN Honghu1,2, LUO Donggen1, YANG Weifeng1, HONG Jin1

( 1 Key Laboratory of Optical Calibration and characterization, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China;
2 University of Science and Technology of China, HefeI 230026, China )

Received:2016-08-23 Revised:2016-10-11 Published:2017-11-28 Online:2017-11-13

摘要/Abstract

摘要：

带外响应（带外泄漏）是影响多光谱遥感器（multi-spectral remote sensor, MsRS）辐射定标不确定度的重要因素。以多光谱成像仪的443 nm通道为例，介绍了一种MsRS带外响应的测量、校正和精度验证方法。该方法主要利用一种新型大孔径光谱可调积分球参考光源（spectrum-tunable integrating spheres reference light source, STIS）的分立波段和连续光谱输出功能开展多光谱成像仪带外响应测量、校正及其精度验证实验，借助带外响应校正模型修正带内权重辐亮度，并与光谱辐亮度计的测量参考值进行对比。结果表明，带外响应校正前后的带内WRL与光谱辐亮度计的测量参考值的差异由8.8%降低到2.9%，初步验证了STIS在MsRS带外响应校正中的应用可行性。

关键词: 辐射定标, 带外响应, 权重辐亮度

Abstract:

Out-of-band response (out-of-band light leakage) is a significant factor affecting the radiometric calibration uncertainty of multispectral remote sensor (MsRS). For the MsRs out-of-band response measurement, correction and precision verification, the 443 nm band in multispectral imager using the functions of a novel spectrum-tunable integrating spheres reference light source (STIS) (i.e. discrete waveband and continuous spectrum output functions) was taken for example in batch experiments. After carrying out the out-of-band response measurement, correction and precision verification of multispectral imager, the weighted radiant luminance was amended based on the out-of-band response correction model, and compared with the measuring reference of spectral radiance meter. The results show that the difference between in-band weighted radiant luminance and measuring reference before and after the out-of-band response correction decreases from 8.8% to 2.9%, which confirms the application feasibility of STIS on the MsRS out-of-band response correction.

Key words: radiometric calibration, out-of-band response, weighted radiant luminance

中图分类号:

TN312.8

康晴袁银麟李健军郑小兵吴浩宇翟文超钱鸿鹄骆冬根杨伟锋洪津. 多光谱遥感器带外响应的测量、校正及精度验证[J]. 大气与环境光学学报, 2017, 12(6): 456-464.

KANG Qing, YUAN Yin-Lin, LI Jian-Jun, ZHENG Xiao-Bing, WU Hao-Yu, ZHAI Wen-Chao, JIAN Hong-Hu, JIA Dong-Gen, YANG Wei-Feng, HONG Jin. Measurement, Correction and Precision Verification of Out-of-Band Response for Multispectral Remote Sensor[J]. Journal of Atmospheric and Environmental Optics, 2017, 12(6): 456-464.

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