激光散射特性的红外瞄准镜基线检测方法  

Baseline detection method for infrared sight based on laser scattering characteristics

作　　者：李波[1] 莎日娜 LI Bo;SA Rina(Inner Mongolia Medical University,Hohhot 010110,China;Unit 50,PLA Unit 32302,Beijing 101400,China)

机构地区：[1]内蒙古医科大学,呼和浩特010110 [2]中国人民解放军32302部队50分队,北京101400

出　　处：《激光杂志》2024年第7期227-232,共6页Laser Journal

基　　金：内蒙古自治区教育厅科学技术与信息化处项目(No.NJSY22675)。

摘　　要：为提升武器射击精度,设计激光散射特性的红外瞄准镜基线检测方法。通过固定瞄准镜并利用黑体发射红外激光,在镜子反射后形成红外平行光束,并在瞄准镜视场内生成靶标的像。通过调整瞄准镜分划中心与靶标像中心重合,实现基线检测。采用双向反射分布函数和基尔霍夫近似理论的驻留相位近似法,分析红外激光的散射特性及波长与散射角对成像精度的影响,从而提高基线检测的精度。实验证明:当入射波长在9.5μm左右时,射击目标粗糙度为8μm时,双站极化散射系数最低,在1.0左右;当散射角在29°左右时,射击目标粗糙度为8μm时,双站极化散射系数最低在0.146左右;校正后目标位置偏差平均为0.01 m。In order to improve the firing accuracy of weapons,a baseline detection method of infrared Telescopic sight with laser scattering characteristics is designed.By fixing the Telescopic sight and using the blackbody to emit infrared laser,an infrared parallel beam is formed after the mirror reflection,and the target image is generated in the field of view of the Telescopic sight.The baseline detection is realized by adjusting the Telescopic sight graduation center to coincide with the target image center.The Bidirectional reflectance distribution function and Kirchhoff approximation theory are used to analyze the scattering characteristics of infrared laser and the influence of wavelength and scattering angle on imaging accuracy,so as to improve the accuracy of baseline detection.Experimental proof:When the incident wavelength is 9.5μAt around m,the roughness of the shooting target is 8μAt m,the bistatic polarization scattering coefficient is the lowest,around 1.0;When the scattering angle is around 29°,the roughness of the shooting target is 8μAt m,the lowest bistatic polarization scattering coefficient is around 0.146;The average deviation of the target position after correction is 0.01 m.

关 键 词：激光散射特性 红外瞄准镜 基线检测 反射分布函数 基尔霍夫 驻留相位近似法 

分 类 号：TN215[电子电信—物理电子学]