爆炸型紅外煙幕衰減特性模型的實(shí)驗(yàn)驗(yàn)證研究

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中圖分類號：TN957.52 文獻(xiàn)標(biāo)志碼：A DOI：10.12305/j.issn.1001-506X.2025.03.05

Experimental verification research on the attenuation characteristics model of explosive infrared smoke screen

LIN Juan，ZHU Xijuan，LIU Xingrun，LI Haotong，WU Kaifeng，DONG Yanbing* （Beijing Instituteof Enuironmental Characteristics，BeijinglOo854，China）

Abstract：Red phosphorus smoke screen bomb is an efective interference method against infrared detection.The smoke screen bomb explodes and spreads to form a smoke screen.The attenuation distribution characteristics of smoke screen on thedetected target arethe basis for evaluating its shielding performance.The typical attenuation characteristics model of explosion infrared smoke screen includes a diffusion model for explosive smoke formation and a smoke screen transmitance calculation model based on Mie scattering theory. Based on this，experiments are designed and carried out to measure the microscopic optical characteristics of smoke screenand the infrared attenuation characteristics of red phosphorus smoke screen bomb in the field.The experimental results indicate that the particle size of the smoke screen is mainly concentrated in the range of 10-75μm ，and the shape tends towards spherical particles.Compared with the time-varying transmittance results obtained from field testing，the average relative error of the medium wave transmitance calculation results in smoke screen attenuation characteristics model is 16.3% ，and the average relative error of the long wave transmittance is 15.8% ．The fraction density of smoke screen components calculated by the diffusion model is consistent with the trend of the measured smoke screen transmittance.The calculation model results areconsistent with the experimental data analysis.There is a certain deviation between the spherical assumption of smoke screen particles，the setting of component types in thearticleand theactual state.Further verification analysis of the three-dimensional physical field of smoke screen is needed to improve the smoke screen attenuation model.

Keywords：smoke screen；red phosphorus；Mie scattering；transmittance；particle number density

0 引言

煙幕是光電對抗中的有效防護(hù)手段，其機(jī)理是利用煙幕顆粒對光波的吸收與散射作用來衰減被保護(hù)目標(biāo)的輻射或反射光波，使對方偵察、探測等光學(xué)設(shè)備無法接收到強(qiáng)度足夠的目標(biāo)信號[1-3]，從而達(dá)到保護(hù)目標(biāo)的目的。（剩余15867字）