黄海平流雾对8～12μm波段红外辐射衰减的实验研究
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摘要
为了研究新一代舰载红外探测系统在海雾条件下的探测能力,以黄海海雾为实验环境,以非制冷型红外热像仪为探测器,分别在不同强度的海雾中以不同性质的红外辐射源为探测对象进行了成像实验,并结合红外辐射在海雾中的衰减模型进行了量化研究。衰减模型可分为物理模型和经验模型两大类,分别对其在不同强度海雾下的衰减曲线进行了对比分析,并根据实测结果进行了拟合分析,结果表明:在轻雾条件下,实际观测的结果几乎与物理模型一致;在较浓海雾条件下,以经验模型计算的结果与观测结果相差较小;而在特浓海雾条件下,以经验模型计算的结果较接近于实际观测。
In order to study the detection capabilities of the new generation of shipborne infrared detection systems under sea fog conditions, the Yellow Sea sea fog was used as the experimental environment, the uncooled infrared thermal imager was used as the detector. Different infrared radiation sources were used as detection objects in different intensity sea fogs to perform imaging experiments, a quantitative study was made based on the attenuation model of infrared radiation in different conditions.The attenuation model can be divided into two categories: physical model and empirical model. The attenuation curves under different intensities of sea fog were compared and analyzed, the results of several measurements were analyzed. It is shown that in the case of light fog, the results calculated by the physical model are almost the same as the observation results; for dense sea fog, the results calculated by the empirical model are very close to the actual observations; while under the heavy sea fog conditions, the actual observation results are more closer to empirical models.
In order to study the detection capabilities of the new generation of shipborne infrared detection systems under sea fog conditions, the Yellow Sea sea fog was used as the experimental environment, the uncooled infrared thermal imager was used as the detector. Different infrared radiation sources were used as detection objects in different intensity sea fogs to perform imaging experiments, a quantitative study was made based on the attenuation model of infrared radiation in different conditions.The attenuation model can be divided into two categories: physical model and empirical model. The attenuation curves under different intensities of sea fog were compared and analyzed, the results of several measurements were analyzed. It is shown that in the case of light fog, the results calculated by the physical model are almost the same as the observation results; for dense sea fog, the results calculated by the empirical model are very close to the actual observations; while under the heavy sea fog conditions, the actual observation results are more closer to empirical models.
引文
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[2]Wang Zhe,Wang Jingyuan,Xu Zhiyong,et al.Link loss of long wavelength infrared laser propagating through rain[J].Infrared and Laser Engineering,2015,44(10):3092-3095.(in Chinese)王喆,汪井源,徐智勇,等.远红外激光雨中传输损耗的研究[J].红外与激光工程,2015,44(10):3092-3095.
[3]Du Yongcheng,Yang Li,Zhang Shicheng.Numerical analysis fine water sprays shielding infrared radiation[J].Infrared and Laser Engineering,2013,42(8):1967-1971.(in Chinese)杜永成,杨立,张士成.细水雾遮蔽红外辐射的数值分析[J].红外与激光工程,2013,42(8):1967-1971.
[4]Li Li,Gao Zhiyun,Wang Xia,et al.Effects of forward scattering of fog on range-gated imaging system[J].Infrared and Laser Engineering,2004,33(6):562-566.(in Chinese)李丽,高稚允,王霞,等.雾的前向散射对距离选通成像系统的影响[J].红外与激光工程,2004,33(6):562-566.
[5]Martin Grabner,Vaclav Kvicera.The wavelength dependent model of extinction in fog and haze for free space optical communication[J].Optics Express,2011,19(4):3379-3386.
[6]Robert J Drost,Terrence J Moore,Brian M Sadler.UVcommunications channel modeling incorporating multiple scattering interactions[J].Optical Society of America,2011,28(4):686-695.
[7]Deirmendjian.Far-infrared and sub millimeter wave attenuation by clouds and rain[J].Journal of Applied Meteorology and Climatology,1975(14):1584-1593.
[8]Kim Isaac I,Bruce Mcarthur,Korevaar Eric J.Comparison of laser beam propagation at 785 nm and 1 550 nm in fog and haze for optical wireless communications[C]//Proc SPIE,Opt Wireless Commun III,2001,4214:26-37.
[9]Ke Xizheng,Yang Lihong,Ma Dongdong.Transmitted attenuation of laser signal in rain[J].Infrared and Laser Engineering,2009,37(6):1021-1024.(in Chinese)柯熙政,杨利红,马冬冬.激光信号在雨中的传输衰减[J].红外与激光工程,2009,37(6):1021-1024.
[10]Chen Zhongwei,Liang Xingang,Zhang Lingjiang,et al.Investigation of sprary on temperature drop and infraredstealth of water surface object[J].J Infrared Millim Waves,2010,29(5):342-346.(in Chinese)陈中伟,梁新刚,张凌江,等.雾状水幕降温衰减与水面目标红外隐身研究[J].红外与毫米波学报,2010,29(5):342-346.
[11]Milbrandt J A,Yau M K.A multimoment bulk microphysics parameterization.Part I:Analysis of the role of the spectral parameter[J].Journal of the Atmosphere Sciences,2005,62(9):3051-3064.
[12]Cong Rijin,Wang Jingyuan,Xu Zhiyong,et al.Long wave infrared transmission in atmospheric channel[J].Infrared and Laser Engineering,2014,43(3):927-932.(in Chinese)丛日进,汪井源,徐智勇,等.长波长红外大气信道传输[J].红外与激光工程,2014,43(3):927-932.
[13]Zhou Jun.Research on stray light of the infrared detection system[D].Harbin:Harbin Institute of Technology,2013.(in Chinese)周军.红外目标探测系统的杂散辐射研究[D].哈尔滨:哈尔滨工业大学,2013.