【作者】 陈彬； 王成安； 王富强； 谭建宇；

【Author】 Bin Chen;Chengan Wang;Fuqiang Wang;Jianyu Tan;School of Automobile Engineering,Harbin Institute of Technology at Weihai;

【机构】 哈尔滨工业大学(威海)汽车工程学院；

【摘要】 随着红外探测技术的广泛应用,研究舰船目标及其海面背景的辐射特性对于提高目标识别有越来越重要的军事意义。本文首先计算了舰船表面的温度分布,通过坐标变换、面元求和以及波长积分等操作计算并分析了舰船在不同时刻、不同探测方向、不同波段的辐射特性;然后考虑太阳、天空的影响,使用Cox-Munk模型和Monte Carlo方法计算了海面的粗糙程度,并将不同探测角度的海面辐射亮度计算值与实测数据比较,误差均小于15%;最后根据红外探测光学原理及辐射理论,模拟了8-12μm波段舰船在海面背景下不同探测角度的红外热像,得出该舰船目标的最佳探测天顶角为15度。更多还原

【Abstract】 With the wide application of infrared detection technology,it has more important military significance to research the radiation characteristics of the ship and sea background for improving target recognition.This paper calculated the surface temperature distribution of the ship on the first.Moreover,we calculated and analyzed radiation characteristics of ship in different time,different detection direction and different band,via operation of coordinate transformation,the surface element summation and wavelength integration.And then,consider of the influence of the sun and sky,we calculated the sea radiation characteristics in different detection direction,using Monte Carlo method and Cox-Munk model.The error of calculated and measured data is less than 15%.Finally,according to the infrared detection optical principles and radiation theory,we simulated the infrared image of ship in different detection direction under background of sea.The results show that the best detection zenith angle of ship target is 15 degrees.更多还原