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遥感技术与应用  2007, Vol. 22 Issue (1): 20-25    DOI: 10.11873/j.issn.1004-0323.2007.1.20
研究与应用     
基于标准探测器的FY-2(05)星扫描辐射计可见通道外场定标
周 磊,彭妮娜,张黎明,吴浩宇,郑小兵
(中国科学院安徽光学精密机械研究所遥感室(九室),安徽 合肥 230031)
Detector Based Field Radiometric Calibration for the Visible Band of Multi-channel Scanning Radiometer of Satellite FY-2-05
ZHOU Lei, PENG Nina, ZHANG Li-ming,ZHENG Xiao-beng, WU Hao-yu
(Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Science,P.O.Box1125,Hefei230031,China)
 全文: PDF 
摘要:

为了对FY-2号05星扫描辐射计可见光通道进行发射前外场辐射定标,在采用了传统的辐亮度定标方法的同时,提出了一种新型的独立于扫描辐射计可见光通道光谱响应函数的基于标准探测器的反射比定标法(Detector Based Reflectance Calibration)。该方法通过筛选波长得出在一定的精度范围内FY-2号可见光通道的漫射板反射辐亮度与漫射板的某一单波长反射辐亮度成正比,从而可以用8通道高精度辐亮度标准探测器中对应波段的探测器的响应替代FY-2号05星扫描辐射计宽波段响应直接求出定标系数。传统辐亮度定标方法结果的不确定度为6.0%~6.4%,而利用基于标准探测器的反射比定标法定标结果的不确定度达到5.4%。实验结果表明基于标准探测器的反射比定标法由于采用了直接由高精度低温绝对辐射计传递的标准探测器,与传统的基于辐射源传递相比其测量精度得到有效提高,并且受现场大气条件的影响小。

关键词: 辐射定标辐亮度定标基于标准探测器的反射比定标扫描辐射计    
Abstract:

For pre-launch field radiometric calibration for the visible channel of scanning radiometer of satellite FY-2-05, the traditional radiation calibration method has been adopted, on the other hand, a novel method called Detector Based Reflectance Calibration (DBRC) which is independent of spectral response function of scanning radiometer has been advanced. Because the integral radiation of the Standard White Reference is in
direct proportion to that in a certain narrow wave band, through the selection of bands from the eight channels of the high accuracy Multi-channel radiance standard detector, the integral response radiation of the FY-2scanning radiometer can be replaced by the narrow wave band response radiation of the high accuracy Multichannel radiance standard detector. Therefore, the calibration coefficients can be determined directly by the
high accuracy Multi-channel radiance standard detector. The uncertainty of traditional radiation calibration is about 6. 0%~6. 4%, while the uncertainty of DBRC reaches 5. 4%. The results of the experiments demonstrate that the uncertainty of BRDC, which is based on the high accuracy cryogenic radiometry system,is much higher than that of the traditional radiation calibration which is based on the standard radiation source.

Key words: Radiometric calibration    Radiation calibration    Detector based reflectance calibration (DBRC)  
收稿日期: 2006-06-09 出版日期: 2011-10-14
:  TP 79  
作者简介: 周磊(1978-),男,博士研究生,研究方向为宽带细分光谱的高精度光辐射测量与定标应用。
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引用本文:

周 磊,彭妮娜,张黎明,吴浩宇,郑小兵. 基于标准探测器的FY-2(05)星扫描辐射计可见通道外场定标[J]. 遥感技术与应用, 2007, 22(1): 20-25.

ZHOU Lei, PENG Nina, ZHANG Li-ming,ZHENG Xiao-beng, WU Hao-yu. Detector Based Field Radiometric Calibration for the Visible Band of Multi-channel Scanning Radiometer of Satellite FY-2-05. Remote Sensing Technology and Application, 2007, 22(1): 20-25.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2007.1.20        http://www.rsta.ac.cn/CN/Y2007/V22/I1/20


[1] Qiu Jinhuan. Broadband Extinction Method to Determine Aerosol Optical Depth from Accumulated Direct Solar Radiation
[J]. Journal of Applied Meteorology,2003,42(11):1611-1625.

[2] 郑小兵,吴浩宇,章俊平.不确定度优于0.035%的绝对光谱响应率标准探测器
[J].光学学报,2001,21(6):749-752.

[3] Thomas R, Gentile J, Houston M,et al. The NIST High Accuracy Cryogenic Radiometer
[J]. Appl Opt., 1996, 35(7):1056-1068.

[4] 郑小兵,吴浩宇,章骏平,等.高精度光辐射定标和标准传递方法研究
[J].科学通报,2000,45(12):1341-1344.

[5] Peng Nina, Yi Weining, He Chaolan. In-lab Calibration for Absolute Spectral Responsivity of Optical Instrument
[A]. Proceedings of SPIE-The International Society for Optical Engineering, v 6150 II, 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies:Optical Test and Measurement Technology and Equipment
[C].2006.

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