光学精密工程2025，Vol.33Issue(13)：2036-2055,20.DOI:10.37188/OPE.20253313.2036
面向海面反光抑制的最优偏振探测角度估计
Optimal polarization detection angle estimation for sea surface glint suppression
摘要
Abstract
In marine target detection,significant variations exist in the polarization signal strength received under different observation geometries.To enhance image quality and target recognition,an optimal polar-ization detection angle estimation method based on the Cox-Munk rough sea surface model is proposed.First,we analyze the effects of different wind speeds,wind directions,solar incidence zenith angles,ob-servation zenith angles,and azimuth angles on polarization reflectivity and degree of polarization.Then,we establish quantitative relationships between different combinations of observation angles and the re-ceived polarization signal strength for the three components of the sun-surface-detector system.Finally,by maximizing polarization signal and polarization degree,the paper proposes the optimal combination of polarization observation angles under different constrained observation geometries.The effective distribu-tion of sea surface polarization reflectance is primarily concentrated in the azimuthal range from 150° to 210°,with a relative peak occurring at an azimuth of 180°.Within this range,the peak of sea surface polar-ization occurs when the sum of the solar zenith angle and the observation zenith angle is approximately 106°±6°.When the solar incidence zenith angle is 55° and the relative azimuth angles are 180°,165°,and 150°,the observation zenith angles are close to the optimal observation zenith angles predicted by the simu-lation(approximately 51°,53°,and 57°,respectively).By placing a polarizer with a polarization direction of 90° in front of the detector,the optimal reflectance suppression effect can be achieved,significantly im-proving the imaging quality of the target.关键词
海面反射光/最优偏振探测角度/Cox-Munk模型/偏振反射特性Key words
sea surface reflected light/optimal polarization detection angle/Cox-Munk model/polariza-tion reflection properties分类
数理科学引用本文复制引用
刘鹏,倪新宇,段锦,王佳林,董克晗..面向海面反光抑制的最优偏振探测角度估计[J].光学精密工程,2025,33(13):2036-2055,20.基金项目
国家自然科学基金重大仪器专项(No.62127813) （No.62127813）
