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1.中国科学院 长春光学精密机械与物理研究所, 吉林 长春 130033
2.国家卫星气象中心, 北京 100081
[ "王龙(1985-), 男, 吉林磐石人, 硕士, 助理研究员, 2008年、2011年于吉林大学分别获得学士学位、硕士学位, 主要从事航空航天高光谱成像技术、结构设计、光谱辐射测量与定标等方面的研究。E-mail:wangling_jixie@163.com" ]
[ "郑玉权(1972-), 男, 内蒙古通辽人, 博士, 研究员, 博士生导师, 1999年于中国科学院长春光学精密机械与物理研究所获得博士学位, 主要从事航空航天高光谱成像技术、光学系统设计、光谱辐射测量与定标等方面的研究。E-mail:zhengyq@sklao.ac.cn" ]
收稿日期:2018-03-15,
录用日期:2018-4-25,
纸质出版日期:2018-08-25
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王龙, 蔺超, 纪振华, 等. 碳卫星CO2探测仪发射前的漫反射板定标[J]. 光学 精密工程, 2018,26(8):1967-1976.
Long WANG, Chao LIN, Zhen-hua JI, et al. Preflight diffuser's calibration of carbon dioxide spectrometer of TanSat[J]. Optics and precision engineering, 2018, 26(8): 1967-1976.
王龙, 蔺超, 纪振华, 等. 碳卫星CO2探测仪发射前的漫反射板定标[J]. 光学 精密工程, 2018,26(8):1967-1976. DOI: 10.3788/OPE.20182608.1967.
Long WANG, Chao LIN, Zhen-hua JI, et al. Preflight diffuser's calibration of carbon dioxide spectrometer of TanSat[J]. Optics and precision engineering, 2018, 26(8): 1967-1976. DOI: 10.3788/OPE.20182608.1967.
为了提高CO
2
探测仪的在轨辐射定标精度,建立了在轨辐射校正原理,并对关键环节漫反射板的制备、BRDF定标和应用进行了系统的研究。根据CO
2
探测仪的工作原理与系统组成,介绍了星上定标设备和在轨辐射定标策略,确定了漫反射板的制备方法和优化工艺参数,制定了以标准灯和标准探测器为传递链路的漫反射板BRDF的精确定标方法。对漫反射板基准BRDF、角度修正因子和半球反射率进行了测试,对其实验室定标精度进行了分析,并通过在轨初期的应用结果予以验证。发射前的定标结果表明,漫反射板在760 nm、1 610 nm和2 060 nm 3个波段的定标精度均优于3%。在轨初期的测试结果表明CO
2
探测仪1 610 nm波段在轨绝对辐射定标精度优于5%。CO
2
探测仪漫反射板的定标结果满足仪器辐射定标对漫反射板定标的精度要求。
In order to improve the on-orbit calibration accuracy of a CO
2
spectrometer
the principle of on-orbit radiation correction was established
and key aspects such as the fabrication
BRDF calibration
and application of a diffuser were systematically studied. Based on the working principle and system composition of the CO
2
spectrometer
the device and strategy for performing the on-orbit radiation calibration were introduced
and the fabrication method and optimization of the process parameters of the diffuser were established. Next
an accurate calibration method with lamps and detectors as transmission standards for the diffuser's BRDF are developed. The reference BRDF
angle correction factor
and hemispherical reflectivity of the diffuser were tested. In addition
the calibration accuracy in the laboratory was analyzed and subsequently verified by the application results obtained during the initial stage of the orbit. The results obtained before the launch show that the calibration accuracy of the diffuser was better than 3% for all three bands at 760 nm
1 610 nm
and 2 060 nm. The initial test results on orbit indicate that the accuracy of the absolute radiation calibration of the CO
2
spectrometer at 1 610 nm was better than 5%. These results can satisfy the accuracy requirements for the diffuser radiation calibration of the CO
2
spectrometer.
郑玉权.温室气体遥感探测仪器发展现状[J].中国光学, 2011, 4(6):546-561.
ZHENG Y Q. Development status of remote sensing instruments for greenhouse gases[J]. Chinese Optics, 2011, 4(6):546-561. (in Chinese)
赵其昌, 杨勇, 等.大气痕量气体遥感探测仪发展现状和趋势[J].中国光学, 2013, 6(2):156-162.
ZHAO Q CH, YANG Y, et al.. Development status and trends of atmospheric trace gas remote sensing instruments[J]. Chinese Optics, 2013, 6(2):156-162. (in Chinese)
JON F, NING L, BORYANA E, et al.. Suomi-NPP VⅡRS Solar Diffuser Stability Monitor Performance[J].IEEE Transactions on Geoscience and Remote Sensing, 2016, 2(54):631-639.
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NING L, XIAO X X. Impacts of the Angular Dependence of the Solar Diffuser BRDF Degradation Factor on SNPP VⅡRS Reflective Slolar Band On-Orbit Radiometric Calibration[J].IEEE Transactions on Geoscience and Remote Sensing, 2017, 3(55):1537-1543.
CHEN H D, XIONG X X, AMIT A, et al.. On-Orbit Characterization of the MODIS SDSM Screen for Solar Diffuser Degradation Estimation[J].IEEE Transactions on Geoscience and Remote Sensing, 2017, 11(55):6456-6467.
ROBERT E H, RANDY P, BRIAN M S, et al.. Fabrication and Assembly Integration of the Orbiting Carbon Observatory Instrument[J]. Infrared Spaceborne Remote Sensing and Instrumentation, 2008, 13(7082):1-10.
ROBERT R, STEPHEN M, B.CAROL J, et al.. Preflight Radiometric Calibration of Orbiting Carbon Observatory 2[J].IEEE Transactions on Geoscience and Remote Sensing, 2017, 4(55):1994-2005.
FRANKENBERG C, POLLOCK R, LEE R A, et al.. The Orbiting Carbon Observatory (OCO-2):spectrometer performance evaluation using pre-launch direct sun measurements[J].Atmospheric Measurement Techniques, 2015, 8:301-313.
汪逸群, 王龙, 郭万存, 等.空间多用途双面反射镜的设计与制备[J].光学学报, 2015, 4(35):0428001-0428009.
WANG Y Q, WANG L, GUO W C, et al.. Design and Test of Imaging Spectrometer's Dual Dispersive Prisms[J]. Acta Optica Sinica, 2015, 4(35):0428001-0428009.(in Chinese)
LI ZH G, LIN CH, LI CH L, et al.. Prelaunch spectral calibration of a carbon dioxide spectrometer[J].Measurement Science and Technology, 2017, 28(6):675-684.
蔺超, 李诚良, 王龙, 等.碳卫星高光谱CO 2 探测仪发射前光谱定标[J].光学 精密工程, 2017, 8(25):2064-2075.
LIN CH, LI CH L, WANG L, et al.. Preflight spectral calibration of hyperspectral carbon dioxide spectrometer of TanSat[J]. Opt. Precision Eng., 2017, 8(25):2064-2075. (in Chinese)
韦跃峰, 蔺超, 薛浩, 等. CO 2 探测仪反射镜组件设计[J].光学 精密工程, 2017, 3(25):641-647.
WEI Y F, LIN CH, XUE H, et al.. Design of mirror subassembly in CO 2 sounder[J]. Opt. Precision Eng., 2017, 3(25):641-647. (in Chinese)
郑玉权, 高志良. CO 2 探测仪光学系统设计[J].光学 精密工程, 2012, 12(20):2645-2653.
ZHENG Y Q, GAO ZH L. Optical system design of CO 2 sounder[J]. Opt. Precision Eng., 2012, 12(20):2645-2653.(in Chinese)
GEORGIEV G T, BUTLERB J J. BRDF STUDY OF GRAY-SCALE SPECTRALON[J]. Proc. of SPIE, 2008, 7081:1-9.
STOVER J C. Optical scattering:measurement and analysis, Third Edition[M]. Bellingham, Washington:SPIE Press, 2012.
黄文薪, 张黎明, 司孝龙, 等.太阳漫反射板衰减监测辐射计的设计及性能评估[J].光学 精密工程, 2016, 4(24):732-739.
HUANG W X, ZHANG L M, SI X L, et al.. Design of solar diffuser degeneration monitor and its performance evaluation[J]. Opt. Precision Eng., 2016, 4(24):732-739. (in Chinese)
王龙, 蔺超, 郑玉权. CO 2 探测仪星上定标铝漫反射板的制备与试验[J].中国光学, 2013, 4(6):591-599.
WANG L, LIN CH, ZHENG Y Q. Fabrication and experiment of aluminum diffuser for CO 2 detecter calibration on orbit[J]. Chinese Optics, 2013, 4(6):591-599. (in Chinese)
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