目标红外偏振特性的影响因素研究

摘要

As a kind of newly developed technology,IR polarization works well in enhancing the contrast between objects and background,and discriminating camouflaged objects.An IR polarization imaging system is set up,several kinds of sample plates are made,and experiments at different observing angles are carried out.The effects of roughness,target materials and observing angle on IR polarization characteristics are studied.Experiments results show that the polarization characteristic is more obvious for smooth targets.Targets of different materials differ in polarization characteristics.As the observing angle increases,the rate of polarization increases too.Roughness,observing angles and target material are important factors that affect the results of polarimetric characteristics.Research on influencing factors of targets polarization characteristics has an important guiding effect on the use of polarization detecting.%红外偏振是近年来发展起来的一种新技术,对增强目标与背景的对比度、识别伪装目标效果明显.本文设计了一套红外偏振成像系统,并制作不同粗糙度、不同材料的样板,在不同的观测角进行偏振成像实验,研究粗糙度、材料和观测角对目标偏振特性的影响.实验结果表明,表面越光滑,目标偏振特性越明显;不同材料的目标,偏振度不同;随观测角度增加,偏振特性也越来越明显.研究初步表明,粗糙度、观测角和目标材料是决定目标偏振特性观测结果的重要因素,目标偏振特性影响因素的研究对偏振探测技术的应用具有一定的指导意义.