沙漠背景下导弹红外辐射特性分析  

Infrared Radiation Characteristics of Missiles in Desert Background

作　　者：张义[1] 赵竞全[1] 钟宇洲 ZHANG Yi;ZHAO Jingquan;ZHONG Yuzhou(School of Aeronautic Science and Engineering, Beihang University, Beijing 100083, China)

机构地区：[1]北京航空航天大学航空科学与工程学院,北京100083

出　　处：《红外技术》2017年第7期653-658,共6页Infrared Technology

摘　　要：详细分析计算了沙漠环境中,能够对导弹红外辐射特性产生影响的太阳、云层、大气、沙漠地表以及沙尘等的辐射强度情况,重点研究了沙漠地表沙物质组成及沙尘环境对地表辐射强度的影响,并建立了导弹的蒙皮、尾喷口和尾焰的红外辐射强度计算模型,分析了在不同探测距离下,导弹在各红外波段的辐射强度随探测角度的变化情况,对计算结果进行分析并得出结论,尾焰是导弹最主要红外辐射源,且辐射主要集中在3~5?m波段,蒙皮辐射主要集中在8~12?m波段,随着探测距离的增加,到导弹的红外辐射特性衰减加剧。Analyzed the radiation intensity of the influence factors on infrared radiation characteristics of missiles,such as sun,clouds,atmosphere,Earth's surface of desert,and the dust.Then,the influence of desert sandy material composition and dust environment,which can work in the infrared radiation characteristics of Earth's surface,are studied emphatically.After that,the infrared radiation calculation models of the missile's skin,exhaust nuzzle,and wake flame are built,and analyzed the infrared radiation intensity changes with detection angles through different detection distances.At last,got the conclusion,wake flame is the first main source of missile's infrared radiation,which focus on the bands between3～5μm,infrared radiation of the skin is mainly between8～12μm,with the increase of detection distance,the attenuation of missile's infrared radiation also increased.

关 键 词：沙漠 红外辐射 尾焰 沙尘环境 衰减 

分 类 号：TN219[电子电信—物理电子学]