Skin Radiation Measurement Method of High Altitude Aircraft Based on Long Wave Infrared Light
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摘要: 本文提出一种对飞行中的飞机蒙皮进行辐射测量和温度反演的方法。首先建立蒙皮辐射模型、大气传输模型和绝对辐射校正模型,然后推导出温度反演的公式,使用逐次逼近法计算蒙皮温度。在理论分析的基础上,使用8~12 μm的宽波段长波红外相机进行试验验证和温度反演,对反演温度的不确定度计算并进行修约,得到5 km飞行高度的民航飞机蒙皮温度的修约结果为268 K,修约不确定度为4 K,修约相对不确定度为1.49%。论文研究工作对获取飞机目标红外辐射特性有重要参考价值。Abstract: This paper presents a method for radiation measurement and temperature inversion of aircraft skin in flight. Firstly, the skin radiation, atmospheric transport, and absolute radiation correction models are established. Then, the formula of temperature inversion is deduced, and the skin temperature is calculated by successive approximation. Based on theoretical analysis, a wideband long wave (infrared) camera that can image light of wavelength 8-12 μm is used for experimental verification and temperature inversion. By calculating and modifying the uncertainty of inverted temperature, the result of modifying the skin temperature of civil aircraft at 5 km flight height is 268 K; the uncertainty of modifying is 4 K, and the relative uncertainty of modifying is 1.49%.The research work of this paper would be useful for acquiring infrared radiation characteristics of aircraft targets.
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表 1 分段大气透过率
Table 1. Atmospheric transmittance of different waveband
Waveband number (i) Starting wavelength (λa) Termination wavelength (λb) Atmospheric transmittance (τ) 1 ${\lambda _{{a_1}}}$ ${\lambda _{{b_1}}}$ τ1 2 ${\lambda _{{a_2}}}$ ${\lambda _{{b_2}}}$ τ2 … … … … I-1 ${\lambda _{{a_{I - 1}}}}$ ${\lambda _{{b_{I - 1}}}}$ τI-1 I ${\lambda _{{a_I}}}$ ${\lambda _{{b_I}}}$ τI 表 2 8~12 μm平均精度50 nm的大气透过率
Table 2. Atmospheric transmittance with average accuracy of 50 nm in 8-12 μm
Waveband number (i) Starting wavelength (λa) Termination wavelength (λb) Atmospheric transmittance (τ) 1 8.01282 8.04505 0.2667 2 8.04505 8.07754 0.1837 … … … … 79 11.8624 11.93317 0.9392 80 11.93317 12.00480 0.8473 -
[1] 张海兴, 张建奇, 杨威, 等. 飞机红外辐射的理论计算[J]. 西安电子科技大学学报, 1997, 24(1): 78-81. https://www.cnki.com.cn/Article/CJFDTOTAL-XDKD701.012.htmZHANG H X, ZHANG J Q, YANG W, et al. Theoretical calculation of the IR radiation of an aeroplane[J]. Journal of Xidian University, 1997, 24 (1): 78-81. https://www.cnki.com.cn/Article/CJFDTOTAL-XDKD701.012.htm [2] 翟泉慧, 王强, 额日其太. 高速飞机红外成像特性数值模拟研究[J]. 激光与红外, 2002, 32(3): 146-148. doi: 10.3969/j.issn.1001-5078.2002.03.005ZHAI Q H, WANG Q, Eriqitai. Numerical simu1ation of IR image of high- speed aircraft[J]. Journal of Laser and Infrared, 2002, 32(3): 146-148. doi: 10.3969/j.issn.1001-5078.2002.03.005 [3] LU JW. Effect of temperature and emissivity of aircraft skin On infrared radiation characteristics[J]. Opto-Electronic Engineering, 2009, 36(2): 50-54. http://www.cqvip.com/QK/83889X/200905/32092853.html [4] LU J W, WANG Q. Aircraft-skin infrared radiation characteristics modeling and analysis[J]. Chinese Journal of Aeronautics, 2009, 22(5): 493-497. doi: 10.1016/S1000-9361(08)60131-4 [5] 夏新林, 艾青, 任德鹏. 飞机蒙皮红外辐射的瞬态温度场分析[J]. 红外与毫米波学报, 2007, 26(3): 174-177. doi: 10.3321/j.issn:1001-9014.2007.03.004XIA X L, AI Q, REN D P. Analysis on the Transient Temperature Fields for Infrared Radiation of Aircraft Skin[J]. J. Infrared Millim. Waves. , 2007, 26(3): 174-177. doi: 10.3321/j.issn:1001-9014.2007.03.004 [6] 黄伟, 吉洪湖. 蒙皮反射的背景辐射对亚声速飞机红外特征的影响研究(一): 方法[J]. 红外与激光工程, 2015, 44(6): 1699-1703. doi: 10.3969/j.issn.1007-2276.2015.06.004HUANG W, JI H H. Effect of reflected background radiation by skin on infrared signature of subsonic aircraft(Ⅰ): methodology[J]. Infrared and Laser Engineering, 2015, 44(6): 1699-1703. doi: 10.3969/j.issn.1007-2276.2015.06.004 [7] 黄伟, 吉洪湖. 蒙皮反射的背景辐射对亚声速飞机红外特征的影响研究(二): 应用[J]. 红外与激光工程, 2015, 44(7): 2039-2043. doi: 10.3969/j.issn.1007-2276.2015.07.013HUANG W, JI H H. Effect of reflected background radiation by skin on infrared signature of subsonic aircraft (Ⅱ): application[J]. Infrared and Laser Engineering, 2015, 44(7): 2039-2043. doi: 10.3969/j.issn.1007-2276.2015.07.013 [8] 康丽珠, 赵劲松, 李振华, 等. 飞机目标红外辐射特性研究现状概述[J]. 红外技术, 2017, 39(2): 105-115. http://hwjs.nvir.cn/article/id/hwjs201702001KANG L Zh, ZHAO J S, LI Zh H, et al. The Overview of the Research Work Developments on Infrared Signature of Aircrafts[J]. Infrared Technology, 2017, 39(2): 105-115. http://hwjs.nvir.cn/article/id/hwjs201702001 [9] 肖喜中, 王跃明, 马骏, 等. 飞机红外光谱辐射特性的多光谱测量[J]. 光学学报, 2014, 34(10): 300-305. https://www.cnki.com.cn/Article/CJFDTOTAL-GXXB201410045.htmXIAO X Zh, WANG Y M, MA J, et al. Multispectral measurement of infrared radiation characteristics of an aircraft[J]. Acta Optica Sinica, 2014, 34(10): 300-305. https://www.cnki.com.cn/Article/CJFDTOTAL-GXXB201410045.htm [10] 曹立华, 李宁, 杨词银, 等. 3~5μm红外探测器的辐射定标[J]. 红外与激光工程, 2012, 41(4): 858-864. doi: 10.3969/j.issn.1007-2276.2012.04.006CAO L H, LI N, YANG C Y, et al. Radiation calibration for 3-5μm infrared detector[J]. Infrared and Laser Engineering, 2012, 41(4): 858-864. doi: 10.3969/j.issn.1007-2276.2012.04.006 [11] 王超哲, 童中翔, 芦艳龙, 等. 飞机红外辐射特性及其探测技术研究[J]. 激光与红外, 2011, 41(9): 996-1001. doi: 10.3969/j.issn.1001-5078.2011.09.012WANG C Zh, TONGZh X, LU Y L, et al. Study on airplane's infrared radiation characteristics[J]. Laser & Infrared, 2011, 41(9): 996-1001. doi: 10.3969/j.issn.1001-5078.2011.09.012 [12] 刘波, 郑伟, 李海洋. 材料表面发射率测量技术研究进展[J]. 红外技术, 2018, 40(8): 725-732. http://hwjs.nvir.cn/article/id/hwjs201808001LIU B, ZHENG W, LI H Y. Research progress in measurement technology of material surface emissivity[J]. Infrared Technology, 2018, 40(8): 725-732. http://hwjs.nvir.cn/article/id/hwjs201808001 [13] 冯云松, 路远, 凌永顺, 等. 发射率对飞机蒙皮温度及红外辐射特性的影响[J]. 红外与激光工程, 2013, 42(2): 294-299. doi: 10.3969/j.issn.1007-2276.2013.02.004FENG Y S, LU Y, LING Y S. Influence of surface emissivity on temperature and infrared radiation characteristics of aircraft skin Infrared and Laser Engineering[J]. Infrared and Laser Engineering, 2013, 42(2) 294-299. doi: 10.3969/j.issn.1007-2276.2013.02.004 [14] 胡壮丽. 钢和铝合金表面发射率特征的实验研究[D]. 新乡: 河南师范大学, 2010.HU Zhuangli. Research on Emissivity Characteristics of Steel And Aluminum Alloy[D]. Xingxiang: Henan Normal University, 2010. [15] 王中宇, 刘智敏, 夏新涛. 测量误差与不确定度评定[M]. 北京: 科学出版社, 2008.WANG Zh Y, LIU Zh M, XIA X T. Measurement Error and Uncertainty evaluation[M]. Beijing: Science Press, 2008. [16] 孙娟, 刘莹娟, 夏丽昆, 等. 热释电探测器NEP参数测量不确定度分析与计算[J]. 红外技术, 2008, 30(4): 192-195. doi: 10.3969/j.issn.1001-8891.2008.04.002SUN J, LIU Y J, XIA L K, et al. Analysis and calculation of uncertainty in measurement of NEP parameters of pyro-electric detector[J]. Infrared Technology, 2008, 30(4): 192-195. doi: 10.3969/j.issn.1001-8891.2008.04.002 [17] 杨建清, 罗积军, 徐军, 等. 基于CART的红外辐射大气透过率的计算[J]. 激光与光电子学进展, 2018, 55(3): 030101. https://cdmd.cnki.com.cn/Article/CDMD-10143-1015561819.htmYANG J Q, LUO J J, XU J, et al. Calculation of Infrared Radiation Atmospheric Transmittance Based on CART[J]. Laser & Optoelectronics, 2018, 55(3): 030101. https://cdmd.cnki.com.cn/Article/CDMD-10143-1015561819.htm [18] 陈秀红, 魏合理. 基于中国典型地区大气模式的红外透过率变化特性[J]. 激光与红外, 2008, 38(11): 1090-1093. doi: 10.3969/j.issn.1001-5078.2008.11.006CHEN X H, WEI H L. Variation of infrared atmospheric transmittance based on atmospheric model in typical regions of China[J]. Laser & Infrared, 2008, 38(11): 1090-1093. doi: 10.3969/j.issn.1001-5078.2008.11.006 [19] 赵志军, 许方宇, 魏超群, 等. 红外整层大气透过率测量方法研究[J]. 红外技术, 2018, 40(7): 718-722. http://hwjs.nvir.cn/article/id/hwjs201807017ZHAO Zh J, XU F Y, WEI Ch Q, et al. Study on Measurement Method for Total Infrared Atmospheric Transmittance[J]. Infrared Technology, 2018, 40(7): 718-722. http://hwjs.nvir.cn/article/id/hwjs201807017 [20] 原遵东. 黑体辐射源发射率对辐射测温准确度的影响及修正方法[J]. 计量学报, 2007, 28(3A): 19-22.YUAN Z D. The effect and correction of blackbody radiation emissivity on the accuracy for radiation thermometry[J]. Acta Metrologica Sinica, 2007, 28(3A): 19-22.