Engineering calculation of infrared radiation of long-endurance UAV'skin

Huang Zhangbin; Li Xiaoxia; Guo Yuxiang; Ma Deyue; Zhao Liang

doi:10.3788/IRLA201746.0304001

The skin infrared (IR) characteristics of a Unmanned Aerial Vehicle (UAV) is the most important basis for the detection and recognition of the UAV. And the aerodynamic heating of an UAVskin, the heat transfer by solar radiation and earth radiation are the key factors that are contribute to the skin IR characteristic of the UAV. The skin IR characteristics calculation model of an UAV was built based on the environment infrared radiation and that of the UAV in this work. The one-dimensional heat conduction difference equation of the UAV skin was found out by a forward-difference method. And then, based on which, the IR radiation intensity distribution of the UAV in a certain plane was calculated by importing the skin emissivity of an UAV. Finally, it is concluded that the IR radiation intensity of an UAV at 8-14 m band is far greater than that at 3-5 m band. And at the same band, the radiation intensity of the top skin is higher than that of the bottom skin.

Engineering calculation of infrared radiation of long-endurance UAV'skin

1. Electronic Engineering Institute,State Key Laboratory of Pulsed Power Laser Technology,Hefei 230037,China;

2. Key Laboratory of Infrared and Low Temperature Plasma of Anhui Province,Hefei 230037,China

Received Date: 2016-07-10

Rev Recd Date: 2016-08-20

Publish Date: 2017-03-25

Key words:

Abstract: The skin infrared (IR) characteristics of a Unmanned Aerial Vehicle (UAV) is the most important basis for the detection and recognition of the UAV. And the aerodynamic heating of an UAVskin, the heat transfer by solar radiation and earth radiation are the key factors that are contribute to the skin IR characteristic of the UAV. The skin IR characteristics calculation model of an UAV was built based on the environment infrared radiation and that of the UAV in this work. The one-dimensional heat conduction difference equation of the UAV skin was found out by a forward-difference method. And then, based on which, the IR radiation intensity distribution of the UAV in a certain plane was calculated by importing the skin emissivity of an UAV. Finally, it is concluded that the IR radiation intensity of an UAV at 8-14 m band is far greater than that at 3-5 m band. And at the same band, the radiation intensity of the top skin is higher than that of the bottom skin.

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Reference (12)

[1]	Watkins W R. Thermal background modeling and its use in science and technology[C]//Proceedings of SPIE, The International Society for Optical Engineering, 1992, 1687:84-106.
[2]	Bakker E J, Fair M L, Schleijpen H M A. Modeling multispectral imagery data with NIRATAM v3.1 and NPLUME v1.6[C]//Proceedings of SPIE, The International Society for Optical Engineering, 1999, 3699:80-91.
[3]	Shan Yong, Zhang Jingzhou, Guo Rongwei. Numerical computation and analysis of the infrared radiation characteristic of missile scarfskin[J]. Journal of Aerospace Power, 2008, 23(2):251-255. 单勇, 张靖周, 郭荣伟. 导弹蒙皮红外辐射特性的数值计算与分析[J]. 航空动力学报, 2008, 23(2):251-255.
[4]	Huang Wei, Ji Honghu. 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. (in Chinese)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.
[5]	Xu Dingguo, Sang Jianhua, Luo Mingdong. Study on the infrared radiation characteristics of UAVS' skin[J]. Infrared and Laser Engineering, 2013, 42(4):880-884. (in Chinese)徐顶国, 桑建华, 罗明东. 无人机蒙皮红外辐射特征研究[J]. 红外与激光工程, 2013, 42(4):880-884.
[6]	Zhang Haixing, Yue Min. Theoretical calculation of the IR radiation of an aeroplane[J]. Journal of Xidian University, 1997(1):78-81. (in Chinese)张海兴, 岳敏. 飞机红外辐射的理论计算[J]. 西安电子科技大学学报, 1997(1):78-81.
[7]	Zhao Nan, Li Xiaoxia, Ma Sen, et al. Research of infrared radiation and atmospheric transmittance of an incoming airplane[J]. Laser Infrared, 2012, 42(8):890-893. (in Chinese)赵楠, 李晓霞, 马森, 等. 来袭飞机的红外辐射及其大气传输特性研究[J]. 激光与红外, 2012, 42(8):890-893.
[8]	Feng Yunsong, Lv Xiangyin, Ling Yongshun, et al. Theoretical calculation on infrared radiation of air target scarfskin[J]. Opto-Electronic Engineering, 2013, 40(2):155-122(in Chinese)冯云松, 吕相银, 凌永顺,等. 空中目标蒙皮红外辐射特性的理论计算[J]. 光电工程, 2013, 40(2):115-122.
[9]	Ma Sen. IR characteristic simulation and dynamic simulation software development of aerial target[D]. Hefei:Electronic Engineering Institute, 2012. (in Chinese)马森. 空中来袭目标IR特性仿真及动态模拟软件开发[D].合肥:电子工程学院, 2012.
[10]	Xuan Yimin. Infrared Characteristics of Ground Targets and Backgrounds[M]. Beijing:National Defence Industry Press, 2004. (in Chinese)宣益民. 地面目标与背景的红外特征[M]. 北京:国防工业出版社, 2004.
[11]	Zhang Jianqi. Infrared Physics[M]. Xi'an:Xidian University Press, 2013. 张建奇. 红外物理[M]. 西安:西安电子科技大学出版社, 2013.
[12]	Editorial Board of China Aeronautical Materials Handbook.China Aeronautical Materials Handbook[S]. Beijing:China Standard Press, 2002:146-150. 《中国航空材料手册》编辑委员会. 中国航空材料手册[S]. 北京:中国标准出版社, 2002:146-150.

Engineering calculation of infrared radiation of long-endurance UAV'skin

doi: 10.3788/IRLA201746.0304001

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