不同条件下海面热尾流红外辐射特性研究  

Study on infrared radiation characteristics of sea surface thermal wake under various conditions

作　　者：张昊春[1] 马超[1] 马锐[2] 魏衍强 王蛟龙[1] 张亦宁[1] ZHANG Hao-chun MA Chao MA Rui WEI Yan-qiang WANG Jiao-long ZHANG Yi-ning(School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China China Ship Development and Design Center, Wuhan 430064, China)

机构地区：[1]哈尔滨工业大学能源科学与工程学院,黑龙江哈尔滨150001 [2]中国舰船研究设计中心,武汉湖北430064

出　　处：《热科学与技术》2017年第4期294-300,共7页Journal of Thermal Science and Technology

基　　金：国家自然科学基金创新研究群体资助项目(51421063);国家自然科学基金资助项目(51536001)

摘　　要：综合考虑波动海面的遮挡和周围环境对热尾流辐射亮度的影响,建立了热尾流红外辐射模型。通过计算3~5μm和8~12μm两个大气窗口下探测器接收到的热尾流红外辐射亮度,得到了热尾流红外辐射特性与风速、探测器高低角和尾流温度之间的关系。从红外探测的角度,利用辐射对比度参量研究了热尾流目标与海洋背景在探测器处的差别,得到了热尾流与海洋背景的对比度在风速和探测器天顶角变化时的变化规律。研究结果为海面热尾流的红外探测提供了理论参考。A thermal wake infrared radiance model is established, considering the shelter from fluctuating sea surface and the effects from environment to thermal wake radiance. Through calculating the thermal wake infrared radiation that are received by detector respectively under 3-5μm and 8-12μm atmospheric windows, the results indicate the relationship among thermal wake infrared radiation, wind velocity and the angle of detector, and the temperature of thermal wake. From the aspect of infrared detection, the radiation contrast between the target of the thermal wake and the marine background is studied. The change rule of the contrast between thermal wake and marine background is got when wind velocity and the angle of detector have constant variation. The simulation result provides a theoretical reference for infrared detection on sea thermal wake.

关 键 词：热尾流 红外辐射 红外探测 

分 类 号：TN219[电子电信—物理电子学]