泡沫对红外点源导引头干扰效能分析

摘要

Foamasanewmethodofpassiveinterference,hasobviousinterferenceeffectsoninfraredno-im-agingseekers.Basedontheanalysisofthefactorsofinfluencingfoaminterferenceeffectiveness,thecalcula-tionmodelofshelteredsurfacedensityofinfraredno-imagingseekersandfoamsurfacedensitybetweentwo pointsisestablished.Bythecomparisonoftwosurfacedensity,interferenceeffectivenessoffoamisanalyzed. UsingMatlabsimulationsoftwarefornumericalsimulation,itshowsthatwithincreasingoffoamthickness andsourceintensity,surfacedensitybetweentwopointsisincreasing,anditissimilartoexperimentalmeas-urednumericalvalues.Followingconclusionhavecertainsignificanceforfoamjammingefficiencyevaluation andoptimizationoffoamjamming.%　　泡沫作为一种新的无源干扰手段，对红外点源导引头干扰作用明显。在对影响泡沫干扰效能的因素进行分析的基础上，建立了红外点源导引头遮蔽面密度和泡沫两点间面密度计算模型，通过两种面密度的比较，对泡沫的干扰效能进行分析。并利用 Matlab仿真工具进行了数值仿真，结果表明：随着泡沫厚度、源强的增大，两点间面密度逐渐增大，与实验测得的值基本吻合。研究结论对泡沫干扰效能评估及泡沫干扰战术的运用具有一定的参考意义。