基于大气透过率比例校正的目标辐射测量

杨词银; 张建萍; 曹立华

doi:10.3788/OPE.20122007.1626

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基于大气透过率比例校正的目标辐射测量

信息科学 | 更新时间：2020-08-12

- 基于大气透过率比例校正的目标辐射测量
- Infrared radiation measurement based on proportional corrected atmospheric transmittance
- 光学精密工程 2012年20卷第7期页码：1626-1635
- 作者机构：
  
  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. 长春理工大学理学院,吉林长春 130022
- 作者简介：
- 基金信息：
  
  国家自然科学基金青年基金资助项目(No.61007009)()
- DOI：10.3788/OPE.20122007.1626
  中图分类号： TP732+.2
- 收稿日期：2012-01-28，
  
  修回日期：2012-03-01，
  
  网络出版日期：2012-07-10，
  
  纸质出版日期：2012-07-10
- 稿件说明：
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杨词银, 张建萍, 曹立华. 基于大气透过率比例校正的目标辐射测量[J]. 光学精密工程, 2012,20(7): 1626-1635

YANG Ci-yin, ZHANG Jian-ping, CAO Li-hua. Infrared radiation measurement based on proportional corrected atmospheric transmittance[J]. Editorial Office of Optics and Precision Engineering, 2012,20(7): 1626-1635
杨词银, 张建萍, 曹立华. 基于大气透过率比例校正的目标辐射测量[J]. 光学精密工程, 2012,20(7): 1626-1635 DOI： 10.3788/OPE.20122007.1626.

YANG Ci-yin, ZHANG Jian-ping, CAO Li-hua. Infrared radiation measurement based on proportional corrected atmospheric transmittance[J]. Editorial Office of Optics and Precision Engineering, 2012,20(7): 1626-1635 DOI： 10.3788/OPE.20122007.1626.

摘要

大气透过率是影响目标辐射测量精度的重要因素

而常规通过MODTRAN等模式计算软件

由大气参数计算大气透过率的误差一般在15%以上

极大地限制了目标辐射测量精度。为此

本文提出利用某一距离的实测大气透过率和模式计算大气透过率之比得到大气透过率校正系数来对其它距离的模式计算大气透过率进行比例校正。实验显示

校正后大气透过率的精度优于8.1%

大大提高了目标辐射测量精度。利用中波红外相机和面源黑体开展了目标辐射特性测量实验

结果表明

采用MODTRAN计算大气透过率的辐射测量方法得到的目标辐射反演精度约为20%

而采用本文方法对大气透过率校正后可将反演精度提高到10%以内。

Abstract

Atmospheric transmittance is an important factor affecting the radiation measurement precision. Generally

the error of conventional atmospheric transmittance calculated from atmosphere parameters by using a atmosphere model calculation software such as MODTRAN is above 15%

which limits the target radiation measurement precision greatly. Therefore

a new radiation measurement method was proposed

by which the ratio between the really-measured atmospheric transmittance and the calculated one for a distance was taken to obtain an atmospheric transmittance correction coefficient. Then

the correction coefficient was used to correct atmospheric transmittances of other measurement distances. Experiments show that the precision of the corrected atmospheric transmittance is better than 8.1%

which improves the target radiation measurement precision greatly. A radiation measurement experiment was performed by using a midwave infrared camera and a blackbody

and the results show that the radiation inversion precision obtained by the conventional method is about 20% and the precision obtained by the proposed method using the corrected atmospheric transmittance has been better than 10%.

关键词

Keywords

references

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