红外与激光工程, 2015, 44 (6): 1699, 网络出版: 2016-01-26   

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

Effect of reflected background radiation by skin on infrared signature of subsonic aircraft (Ⅰ): methodology
作者单位
南京航空航天大学 能源与动力学院,江苏省航空动力系统重点实验室,江苏 南京 210016
摘要
基于CFD计算得到的流场、温度场结果和Modtran计算得到了环境辐射数据,建立了典型背景下的飞行器红外辐射特征计算模型。计算中考虑了波段、季节、发射率和双向反射函数等因素。通过地面试验数据,对计算方法进行了验证,计算值与试验数据吻合较好。该模型为更准确地分析飞行器的红外辐射特征,以及更合理地评价红外抑制措施的抑制效果提供了方法和工具。
Abstract
Based on the flow field and temperature field results calculated by CFD code and the environment data calculated by Modtran, the calculation model of the infrared radiation signature of aircraft under typical background was established. The factors of the wave band, season, emissivity and bidirectional reflectance distribution function were calculated. The calculation method was verified through a ground test data, and the calculation data is in good agreement with the experimental data. This model can provide a method and tool for more accurate analysis of aircraft′s infrared radiation signature and more reasonable evaluation of infrared suppression methods.
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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. 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.

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