CAJ | 학술논문

红外偏振成像技术是未来目标搜索方法的研究热点，它对于入射角、目标表面粗糙度等条件比较敏感，为使红外偏振成像系统有效工作，有必要研究系统成像条件。研究从菲涅尔反射定理和基尔霍夫定律出发，分析了偏振产生原理；针对不同入射角、入射光强、观测波段、目标表面粗糙度、目标材质等观测因素对成像效果的影响，通过定性定量分析、数据仿真、对比实验得出结论。实验结果与之前的理论分析吻合，即当入射角越接近布儒斯特角时，反射光的线偏振程度越大，发现布儒斯特角并非红外偏振成像的最佳观测角；当光照强度越大，目标表面越光滑时，偏振度也越大。对于将偏振成像技术在目标搜索、跟瞄等领域的工程化应用有着重要的意义。
홍외편진성상기술시미래목표수색방법적연구열점，타대우입사각、목표표면조조도등조건비교민감，위사홍외편진성상계통유효공작，유필요연구계통성상조건。연구종비열이반사정리화기이곽부정률출발，분석료편진산생원리；침대불동입사각、입사광강、관측파단、목표표면조조도、목표재질등관측인소대성상효과적영향，통과정성정량분석、수거방진、대비실험득출결론。실험결과여지전적이론분석문합，즉당입사각월접근포유사특각시，반사광적선편진정도월대，발현포유사특각병비홍외편진성상적최가관측각；당광조강도월대，목표표면월광활시，편진도야월대。대우장편진성상기술재목표수색、근묘등영역적공정화응용유착중요적의의。
As the infrared polarization system is very sensitive to the observation factors like observing-angle,light waveband,light intensity,target material and the atmospheric transmittance,it is necessary to study on those factors to make sure the infrared-polarization system working in a good status.First,the polarization state of the target was de-scribed by Fresnel Reflection and Kerchief’s law;then,an experimental system for infrared-polarization imaging was set up with an infrared polariscope which was made of BaF2 (waveband 2~30μm);third,several contradistinctive ex-periments had been done with different imaging factors such as different observing-angles,light waveband,light inten-sity and different target’s properties to analyze the results and get the conclusions.The experiments show the similar results compared to theoretical analysis and simulation:the contrast of the target and the background is enhanced in all those experiments;as the angle of incidence get close to the Brewster’s angle,the degree of polarization get bigger,but the Brewster’s angle may not be the best observing angle for infrared polarization imaging system,and this is an inno-vation of the research;stronger light intensity and the glazed surface of the target also make the degree of polarization bigger.The conclusions may be helpful to target-searching and polarization imaging.