巡航导弹蒙皮红外辐射特性的反向蒙特卡罗法模拟  

Simulation of Infrared Radiation Characteristics of Cruise Missile Skin by Backward Monte Carlo Method

作　　者：刘钢[1] 额日其太[1] 朱希娟[1] 

机构地区：[1]北京航空航天大学能源与动力工程学院,北京100191

出　　处：《科学技术与工程》2011年第5期1012-1017,共6页Science Technology and Engineering

摘　　要：采用反向蒙特卡罗法,在考虑了大气衰减和大气辐射的影响下,计算了导弹在空间不同视角下(8—14)μm波段内的红外辐射强度及分布。结果表明:大气衰减对亚音速导弹红外辐射强度的衰减作用强。随着海拔高度的增加大气衰减的影响越来越小;降低蒙皮发射率可以有效的降低蒙皮红外辐射强度,但对于亚音速导弹,大幅减小蒙皮发射率。由于大气辐射的影响,导弹表面红外辐射强度减小的效果并不如预期的好。The backward Monte Carlo Method was used in the computer program.The infrared radiation characteristics of cruise missile surface in the given spatial direction have been calculatedin the（8—14） μm band considering the influence of the atmospheric attenuation and the atmospheric radiation.The results show that the atmospheric attenuation effect on subsonic missile isstrong,as the rising of altitude its influence becomes weaker.To reduce emissivity of cruise missile surface can reduce its infrared radiation intensity.For subsonic missile,the reduction of cruise missile skin infrared signature cannot achieve the expected results with the sharp decrease of cruise missile emissivity because of the atmospheric radiation effect.

关 键 词：巡航导弹 蒙皮红外辐射 反向蒙特卡罗法 数值计算 

分 类 号：V472.41[航空宇航科学与技术—飞行器设计]