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红外成像探测、侦察与制导技术在现代战争中地位显著。为定量表征发烟剂和发烟装备形成的烟幕对红外热像仪的遮蔽效果,详细论述了各种表征参数的测试过程及计算方法。消光系数和总遮蔽力均是评价烟幕遮蔽性能的特征参数,在烟幕箱实验条件下,烟幕粒子容易实现均匀分布,测得的消光系数和总遮蔽力较为准确,所以二者可作为定量表征参数,它们是实验室筛选发烟剂的依据;在野外实验条件下,烟幕粒子的运动状态受气象条件影响很大,很难直接测量消光系数和总遮蔽力,但可将透过率、有效遮蔽时间等作为烟幕对红外热像仪遮蔽效果的定量表征参数。
Infrared imaging detection, reconnaissance and guidance technology in the modern war in a significant position. In order to quantitatively characterize the shadowing effect of the smoke screen formed by the smoking agent and the smoking equipment on the thermal imaging camera, the testing process and calculation method of various characterization parameters are discussed in detail. The extinction coefficient and total masking force are the characteristic parameters to evaluate the shielding performance of the smoke screen. Under the experimental conditions of the smoke screen box, the smoke particles are easily distributed evenly, and the measured extinction coefficient and the total shielding force are more accurate, so the two can be used as quantitative characterization parameters , Which is the basis of laboratory screening smoke agent; in the field experimental conditions, the movement of the smoke particles are greatly affected by the weather conditions, it is difficult to directly measure the extinction coefficient and the total masking force, but the transmittance can be effectively obscured Time, etc. as a smoke on the shielding effect of infrared camera quantitative characterization parameters.