| 比辐射率封闭法测定技术及误差分析 |
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| 引用本文： | 唐新斋,张仁华,苏红波,孙晓敏. 比辐射率封闭法测定技术及误差分析[J]. 遥感学报, 2000, 4(1): 1-7 |
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| 作者姓名： | 唐新斋 张仁华 苏红波 孙晓敏 |
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| 作者单位： | 中国科学院地理研究所!北京100101 |
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| 基金项目： | 国家自然科学基金!重大项目（49890330），国家攀登项目!（95预38） |
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| 摘 要： | 黑体筒封闭法测定比辐射率的方法大大简化了比辐射率的测量及计算过程；针对这种方法，分析了目标物体、环境的出射辐照度的波动对比辐射率精确测定的影响，讨论了不同辐射计滤光波段对计算的影响；并根据大量的实验给出冷热环境温差的优化值。最后给出了对比辐射率精确测定具有指导意义的３个结论。
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| 关 键 词： | 比辐射率 等效比辐射率 封闭测定法 热红外遥感 |
| 收稿时间： | 1998-09-09 |
| 修稿时间： | 1998-10-13 |
The Sealing cavity Method for Determining Emissivity and Its Deviation Analysis |
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| TANG Xin zhai,ZHANG Ren hu,SU Hong bo and SUN Xiao min. The Sealing cavity Method for Determining Emissivity and Its Deviation Analysis[J]. Journal of Remote Sensing, 2000, 4(1): 1-7 |
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| Authors: | TANG Xin zhai ZHANG Ren hu SU Hong bo SUN Xiao min |
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| Affiliation: | Institute of Remote Sensing Applications, Chinese Academy of Sciences, Beijing 100101, China;Institute of Remote Sensing Applications, Chinese Academy of Sciences, Beijing 100101, China |
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| Abstract: | The Sealing Cavity method for determining the emissivity of the target object simplified the measuring and computing process. According to above mentioned method, in this paper, the influence on the accurately measuring result of the undulation of target object emittance and environment emittance have been analyzed. Also, we discuss the effect of wavebands between different infrared radiometers. Through lots of experiments, the optimum contrast temperature difference between hot environment and cool environment is given. Finally, three conclusions are drawn to guide the measurement of emissivity. |
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| Keywords: | emissivity effective emissivity Sealing Cavity method |
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