近高超声速高温蓝宝石窗口下中波红外成像退化分析仿真与性能测试实验

彭志勇; 王向军; 卢进

doi:10.7498/aps.62.230702

摘要

本文基于高温红外窗口热辐射红外成像探测器干扰机理，开展高温红外窗口成像分析、仿真与实验验证研究工作. 根据流体仿真计算获得的高温窗口温度及实验测得的窗口发射率、吸收率等参数，开展窗口热辐射计算；建立了光学窗口介质内部辐射传输路径和强度计算模型，并给出了窗口辐射出射模型以及相应红外成像模型；基于光学追迹方法，把窗口热辐射成像的计算问题转换成了光学计算问题；设计了一种基于高温蓝宝石红外窗口的加热实验，对红外成像仿真结果进行了检验. 通过仿真结果与窗口加热实验结果对照，将基于模型分析获取图像与实验结果图像作差，得到的平均每个像素误差值为0.45；实验发现在窗口约773 K条件下，设计的中波红外成像系统的信噪比、对比度分别降低到原来三分之一左右，而整个红外成像系统NETD值由原来的约52 mK上升到了954 mK. 本文提出的窗口热辐射分析方法可以有效估计窗口热辐射对中波红外成像的影响，设计的实验对成像系统的指标验证有较好的用途，同时对红外成像系统波段细化优选和成像参数调整，降低图像退化程度，都有着重要的指导意义.

关键词:

Abstract

During supersonic flight, the heat radiation of aero-craft optical window has negative effect on infrared imaging performance. A computational model of radiance transmit route and radiation intensity was built in the paper. And the paper also gave the radiation emission model and infrared imaging model. The problem of heat radiance imaging was transform to the problem of optical computation. The simulation results showed that method proposed by the paper was effective to analysis the heat window radiation problem. An heating sapphire window experiment is designed to validate the simulation result. By subtraction between the deduced image based on model and experiment image, it is found that average error for each pixel is about 0.45. By analysis of experiment results, the infrared image contrast degree and Signal-to-Noise was reduced to about one third of the original ones. And the NETD of infrared system with heating window rose from 52 mK to 954 mK. The heating window radiation analysis model presented by the paper can effectively estimate aero-thermal effects on mid-wave infrared imaging system. The designed experiment developed a effective way to verify imaging system performance. And it is also much meaningful for optimal infrared spectral band selection, imaging parameter adjustment and the hot dome radiation suppression to reduce the image degradation.

Keywords:

作者及机构信息

1.
天津大学精密仪器与光电子工程学院, 微光机电系统技术教育部重点实验室, 天津 300072;

2.
天津大学精密仪器与光电子工程学院, 精密测试技术及仪器国家重点实验室, 天津 300072;

3.
津航技术物理研究所, 天津 300192

基金项目: 国家自然科学基金与中国民用航空总局联合研究基金（批准号：61179043）、国家教育部支撑项目（批准号：625010110）、天津市自然科学基金（批准号：12JCQNJC01200）和国家科技专项资助的课题.

Authors and contacts

1.
MOEMS Education Ministry Key Laboratory of Tianjin University, Tianjin 300072, China;

2.
State Key Laboratory of Precision Measurement Technology and Instruments of Tianjin University, Tianjin 300072, China;

3.
Jinhang Institute of Technical Physics, Tianjin 300192, China

Funds: Project supported by the National Natural Science Foundation of China (Grant No. 61179043), the support Program of National Ministry of Education of China (Grant No. 625010110), the Tianjin Natural Science Foundation of China(Grant No. 12JCQNJC01200), and the Project of the Ministry of Science and Technology of China.

参考文献

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[2]	Liu Y Y, Lu Q B, Zhang W X 2012 Acta Phys. Sin. 61 124201 (in Chinese) [刘扬洋, 吕群波, 张文喜 2012 61 124201]
[3]	Ji X L 2010 Acta Phys. Sin. 59 692 (in Chinese) [季小玲 2010 59 692]
[4]	He X M, Lu B D 2012 Acta Phys. Sin. 61 054201 (in Chinese) [何雪梅, 吕百达 2012 61 054201]
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[6]	Wei H Y, Wu Z S, Peng H 2008 Acta Phys. Sin. 57 6666 (in Chinese) [韦宏艳, 吴振森, 彭辉 2008 57 6666]
[7]	Y Z, Yi S H, Chen Z 2013 Acta Phys. Sin. 62 084219 (in Chinese) [朱杨柱, 易仕和, 陈植 2013 62 084219]
[8]	He L, Yi S H, Tian L F, Chen Z, Zhu Y Z 2013 Chin. Phys. B 22 024704
[9]	Zhu Y Z, Yi S H, He L, Tian L F, Zhou Y W 2013 Chin. Phys. B 22 014702
[10]	Gao Q, Yi S H, Jiang Z F, He L, Xie W K 2013 Chin. Phys. B 22 014202
[11]	Gao Q, Yi S H, Jiang Z F, Zhao Y X, Xie W K 2012 Chin. Phys. B 21 064701
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[13]	Chen C, Fei J D 2005 Infrared and Laser Engineer 34 5 (in Chinese) [陈澄, 费锦东 2005 红外与激光工程 34 5]
[14]	Fan Z G, Zhang Y P, Pei Y W 2007 Infrared MillimWaves 26 5 (in Chinese) [范志刚, 张亚萍, 裴扬威 2007 红外与毫米波学报 26 5]
[15]	Fan Z G, Xiao H S, Gao Y Q 2009 Applied Optics 30 3 (in Chinese) [范志刚, 肖昊苏, 高豫强 2009 应用光学 30 3]
[16]	Fan Z G, Yu C P, Xiao H G, Zhang W 2012 Applied Optics 04 2 (in Chinese) [范志刚, 于翠萍, 肖昊苏, 张旺 2012 应用光学 4 2]
[17]	Raghuraman P, Ashkin B J A 2005 AIAA 94 22
[18]	Wojciechowski C J, Ravi K V, Jones G 2010 AIAA 93 2684
[19]	Wei H 2009 SPIE 13 7513
[20]	Xing S X 2010 Infrared imaging and signal processing (Beijing National Defense Industry Press) p159 (in Chinese) [邢素霞, 2010 红外热成像与信号处理 (北京: 国防工业出版社) 第159页]
[21]	The Infrared handbook (Vol. 1) (the infrared information center) p151

施引文献

[1]	Sun J, Liu W Q 2012 Acta Phys. Sin. 61 124401 (in Chinese) [孙建, 刘伟强 2012 61 124401]
[2]	Liu Y Y, Lu Q B, Zhang W X 2012 Acta Phys. Sin. 61 124201 (in Chinese) [刘扬洋, 吕群波, 张文喜 2012 61 124201]
[3]	Ji X L 2010 Acta Phys. Sin. 59 692 (in Chinese) [季小玲 2010 59 692]
[4]	He X M, Lu B D 2012 Acta Phys. Sin. 61 054201 (in Chinese) [何雪梅, 吕百达 2012 61 054201]
[5]	Chen X W, Ji X L 2009 Acta Phys. Sin. 58 2435 (in Chinese) [陈晓文, 季晓玲 2009 58 2435]
[6]	Wei H Y, Wu Z S, Peng H 2008 Acta Phys. Sin. 57 6666 (in Chinese) [韦宏艳, 吴振森, 彭辉 2008 57 6666]
[7]	Y Z, Yi S H, Chen Z 2013 Acta Phys. Sin. 62 084219 (in Chinese) [朱杨柱, 易仕和, 陈植 2013 62 084219]
[8]	He L, Yi S H, Tian L F, Chen Z, Zhu Y Z 2013 Chin. Phys. B 22 024704
[9]	Zhu Y Z, Yi S H, He L, Tian L F, Zhou Y W 2013 Chin. Phys. B 22 014702
[10]	Gao Q, Yi S H, Jiang Z F, He L, Xie W K 2013 Chin. Phys. B 22 014202
[11]	Gao Q, Yi S H, Jiang Z F, Zhao Y X, Xie W K 2012 Chin. Phys. B 21 064701
[12]	Yin X L 2003 Aero-optical Mechanism (Beijing: China Astronautics Press) p214 (in Chinese) [殷兴良 2003 气动光学原理 (北京: 中国宇航出版社) 第214页]
[13]	Chen C, Fei J D 2005 Infrared and Laser Engineer 34 5 (in Chinese) [陈澄, 费锦东 2005 红外与激光工程 34 5]
[14]	Fan Z G, Zhang Y P, Pei Y W 2007 Infrared MillimWaves 26 5 (in Chinese) [范志刚, 张亚萍, 裴扬威 2007 红外与毫米波学报 26 5]
[15]	Fan Z G, Xiao H S, Gao Y Q 2009 Applied Optics 30 3 (in Chinese) [范志刚, 肖昊苏, 高豫强 2009 应用光学 30 3]
[16]	Fan Z G, Yu C P, Xiao H G, Zhang W 2012 Applied Optics 04 2 (in Chinese) [范志刚, 于翠萍, 肖昊苏, 张旺 2012 应用光学 4 2]
[17]	Raghuraman P, Ashkin B J A 2005 AIAA 94 22
[18]	Wojciechowski C J, Ravi K V, Jones G 2010 AIAA 93 2684
[19]	Wei H 2009 SPIE 13 7513
[20]	Xing S X 2010 Infrared imaging and signal processing (Beijing National Defense Industry Press) p159 (in Chinese) [邢素霞, 2010 红外热成像与信号处理 (北京: 国防工业出版社) 第159页]
[21]	The Infrared handbook (Vol. 1) (the infrared information center) p151

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