第22卷第7期 2014年7月
文章编号
1004-924X(2014)07-1751-09
光学精密工程
Optics and Precision Engineering
Vol, 22No.7
Jul.2014
基于大气实时修正的飞机辐射特性测量
杨词银1*，曹立华1.2，张建萍1
（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）
摘要：研究了飞机飞行时的动态辐射特性测量方法。针对利用软件计算大气透过率进行目标辐射修正精度较低的间题，提出了通过机上标校黑体进行实时大气修正的新辐射测量方法。该方法通过目标飞机上挂载的标校黑体实现大气透过率的实时测量，并利用实测大气透过率对目标飞机辐射进行大气修正来提高修正精度。借助中波和长波红外相机、两个标准面源黑体及-块化锋平板，开展了飞机目标辐射特性测量的地面模拟实验，利用MODTRAN和CART计算以及实测大气透过率分别对黑体目标红外测量值进行辐射反演。与MODTRAN和CART计算大气透过率的传统方法相
比，文中提出的实测大气透过率方法可将目标辅射反演精度提高一倍以上。关
键词：飞机；红外辐射：辐射测量；大气修正；大气透过率；标校黑体；辐射定标
中图分类号：TP732.2
文献标识码：A
doi;10.3788/OPE.20142207.1751
Measurement ofinfraredradiationfortargetairplanebased on
real-timeatmosphericcorrection YANG Ci-yin'' ,CAO Li-hual-2,ZHANG Jian-ping
(1.Changchun Instituteof Optics,FineMechanicsand Physics, ChineseAcademyofSciences，Changchun130033,China;
2.Collegeof Science,Changchun University of Science and Technology,Changchun 130022,China)
*Correspondingauthor，E-mail:yangciyin@163.com
Abstract; The measuring method for dynamic radiation characteristics of a flying airplane is researched.As traditional atmospheric correction method by calculating the atmospheric transmittance and path radiation with software has poor correction precision, this paper proposes a new radiation measurement method to measure the atmoshperic transmittance in real time. The method uses a blackbody carried by the target airplane to measure the atmoshperic transmittance in real time and takes the real-time measured data to correct the target airplane radiation and to improve the radiation measurement precision. Ground simulation experiments for an airplane infrared radiation measurement are performed by means of a midwave (MW) infrared camera, a longwave (LW) infrared camera, two extended-area blackbodies, and a piece of ZnSe. The MODTRAN calculated, CART calculated, and the real-time measured atmospheric transmittances are used to correct the inverted blackbody target radiation. The obtained results show that the target radiation measurement precision by the proposed
收稿日期：2013-03-21；修订日期：2013-05-03
基金项自：国家自然科学基金青年基金资助项目（No.61007009)