2023年6月第8卷2期西安交通工程学院学术研究AcademicResearchofXi'anTrafficEngineeringInstitute海面目标红外辐射特性Jun.2023Vol.8No.2秦娟英(西安交通工程学院陕西西安710300)摘要:红外辐射特性是寻找目标的主要依据,目标红外辐射特性的讨论对红外成像的模拟及红外隐身技术等有着重要作用,本文选取海面目标,考虑周围环境辐射对目标辐射影响、目标与环境中空气的对流、目标自身辐射以及目标所划分的面元之间的传导等,利用节点网络法计算了圆柱形目标表面温度分布情况,根据所计算的面元温度场分布对目标表面辐射亮度进行了数值计算,并分析了红外3-5μm波段中午12:00目标表面辐射亮度在夏季和冬季的分布情况。结果表明由于夏季太阳辐射强,目标表面辐射亮度值要比冬季大。关键词:海面目标;表面温度;红外辐射中图分类号:TN215文献标识码:AInfraredRadiationCharacteristicsOfTheOceanTargetQINJuanying(Xi'anTrafficEngineeringInstitute,Xi'anShaanxi710300,China)Abstract:Theinfraredradiationcharacteristicisthemainbasisforfindingthetarget,Thediscussionofinfraredradiationcharacteristicsofthetargetplaysanimportantroleinthesimulationofinfraredimagingandinfraredstealthtechnology,etc.Thisarticleselectsthesurfaceofthetarget,consideringtheenvironmentradiationimpactontargetradiation,targetandenvironmentairconvection,thetarget'sownradiationandtheconductionbetweenthesurfaceelementsdividedbythetargetandsoon.Thesurfacetemperaturedistributionofcylindricaltargetiscalculatedusingnodenetworkmethod,andtheradiationintensityoftargetsurfaceiscalculatednumericallyaccordingtothecalculatedsurfaceelementtemperaturefielddistribution.Analyzingtargetsurfaceradiatebrightnesswithdifferentseasonsinthe3~5μmwavesinsummerandwinter.Theresultsshowthattheradianceofthetargetsurfaceislargerthanthatofthewinter,becauseofthestrongsolarradiationinsummer.Keywords:theoceantarget;thesurfacetemperature;infraredradiation引言近年来随着红外技术的发展,不同类型目标红外辐射特性引起普遍关注,而目标红外辐射特性的深入研究为目标侦察、识别、追踪的问题奠定了技术依据;为目标的隐身设计提供了评估方法,为目标诱饵设计提供复原信息。红外武器的研究以及目标的隐身特性都需要计算目标的红...