期刊文献+

星载紫外遥感辐射计积分球定标新方法的研究 预览 被引量:2

Research on the New Technology of Calibrations of Spectroradiometer for Ultraviolet Space Borne Remote Sensing Based on Integrating Sphere
在线阅读 下载PDF
收藏 分享 导出
摘要 在紫外波段,使用常规手段实现高精度的辐射定标是比较困难的,这主要是由于标准灯的定标不确定度约4%和漫反射板双向反射分布函数(BRDF)的测量不确定度4%-6%所致。为了提高定标精度,本文应用积分球辐亮度定标方法,获得了接近理想的大面积辐亮度光源(约2%),标定了在研的星载紫外遥感光谱辐射计的亮度响应度。文中将标准灯考虑为均匀亮度的点光源,对辐射计的投影视场进行了照明因子修正。同时进行了常规的灯-板定标方法与积分球定标新方法的比较,得到了采用两种方法标定的辐射计亮度响应度有较好的一致性(3%)的结论。初步的定标数据分析比对显示,漫反射板BRDF的测量不确定度和仪器投影视场内辐亮度的计算不确定度是比对中不一致主要的来源。 In the ultraviolet wavelength range, the high precision radiometric calibration of spectroradiometer is quite difficult. It is mainly caused by the relatively larger uncertainty(4% ) in the irradiance calibration of FEL standard lamp and uncertainty(4%--6% ) in the measurements of the diffuser bidirectional reflectance distribution function(BRDF). In this article, the calibration technique of sphere integrator is used to improve the precision of calibration, the large area uniform( ~ 2% ) source of radiance close to the ideal one is achieved to acquire the radiance responsivities of the spectroradiometer under development for ultraviolet remote sensing from space. The FEL standard lamp is assumed to be a uniform point source to get a correction for the illuminating factor. In the mean time, a comparison between the conventional FEL + diffuser method and the new sphere integrator method is performed. A conclusion is drawn that the radiance responsivities using these two techniques are consistent within 3%. A preliminary analysis of calibration data points out that the uncertainties in measurements of the diffuser BRDF and the calculation of the radiance in the FOV of spectroradiometer account for the discrepancy between the comparisons of these two techniques.
作者 邢进 李福田 顾行发 XING Jin, LI Fu-tian, GU Xing-fa( 1. State Key Laboratory of Remote Sensing Science, Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University, Beifing 100101, China; 2. The Center for National Spaceborne Demonstration, Beijing 100101, China; 3. Anhui Institute of Optics and Fine Mechanics, the Chinese Academy of Sciences, Anhui Hefei 230031, China ; 4. School of Automation Engineering,the University of Electronic Science and Technology of China, Sichuan Chengdu 610054, China)
出处 《遥感学报》 CSCD 北大核心 2006年第5期 644-650,共7页 Journal of Remote Sensing
基金 中国科学院百人计划项目(编号:KZCX0415),国家教育部留学回国人员科研启动基金重点项目(编号:HX040013),国防科学技术工业委员会项目(编号:KJSX0401).
关键词 光谱辐射定标 空间紫外遥感辐射计 积分球 漫反射板 spectral radiometric calibration spectroradiometer for ultraviolet remote sensing in space integrating sphere diffuser
作者简介 邢进(1979-),男,目前在中国科学院遥感应用研究所遥感科学国家重点实验室国家航天局航天遥感论证中心做博士后研究,主要从事定标和遥感定量化研究。E-mail:xingjin@irsa.ac.cn。
  • 相关文献

参考文献5

  • 1James H Walker, Chris L Cromer. A Technique for Improving the Calibration of Large-area Sphere Sources[J].SPIE, 1991,1493 : 224-230. 被引量:1
  • 2Heath D F, Wei Z Y. Comparison of Spectral Radiance Calibrations of SBUV-2 Satellite Ozone Monitoring Instruments Using Integrating Sphere and Flat-plate Diffuser Techniques[J].Metrologia, 1993, 30 : 259-264. 被引量:1
  • 3Donald F Heath. Large Aperture Spectral Radiance Calibration Source for Ultraviolet Remote Sensing Instruments[J].SPIE,2003, 4891 : 335-342. 被引量:1
  • 4邢进,王淑荣,李福田.空间紫外遥感光谱辐射计光谱辐亮度定标三种方法的比较[J].中国激光,2006,33(4):509-515. 被引量:17
  • 5车念曾 阎达远.辐射度学与光度学[M].北京:北京理工大学出版社,1990.. 被引量:11

二级参考文献5

  • 1车念曾 阎达远.辐射度学与光度学[M].北京:北京理工大学出版社,1990.. 被引量:6
  • 2D. F. Heath, Zhongying Wei, W. K. Fowler et al.Comparison of spectral radiance calibrations of SBUV-2 satellite ozone monitoring instruments using integrating sphere and flatplate diffuser techniques[J]. Metrologia, 1993, 30 : 259-264 被引量:1
  • 3James H. Walker, Chris L. Cromer, James T. McLean. A technique for improving the calibration of large area sphere sources[C]. SPIE, 1991, 1493:224-230 被引量:1
  • 4D. F, Heath, Zhongying Wei, W, K, Fowler et al.Comparisons of UV spectral radiance calibrations of SBUV-2 type ozone monitoring instruments and traceability to NIST [C].SPIE, 1994, 2282:313-323 被引量:1
  • 5Donald F. Heath. Large aperture spectral radiance calibration source for ultraviolet remote sensing instruments[C]. SPIE,2003, 4891:335-342 被引量:1

共引文献26

同被引文献18

引证文献2

二级引证文献9

投稿分析

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部 意见反馈