海面上舰船目标的紫外散射特性研究  

Study on Ultraviolet Scattering Characteristics of Ship Targets on the Sea Surface

作　　者：赵婷婷 牛武斌[2] 李良超 李奎 段晓丽 任全年 ZHAO Tingting;NIU Wubin;LI Liangchao;LI Kui;DUAN Xiaoli;REN Quannian(Department of Science,Taiyuan Institute of Technology,Taiyuan 030008,China;College of Physics and Electronic Engineering,Shanxi University,Taiyuan 030006,China;School of Physics and Optoelectronic Engineering,Xidian University,Xi’an 710071,China)

机构地区：[1]太原工业学院理学系,山西太原030008 [2]山西大学物理电子工程学院,山西太原030006 [3]西安电子科技大学物理与光电工程学院,西安710071

出　　处：《红外技术》2019年第8期719-725,共7页Infrared Technology

基　　金：国家自然科学基金青年基金(61405157)

摘　　要：基于粗糙面双向反射分布函数(BRDF)模型,考虑海面的影响,设计了海面舰船目标的紫外光散射亮度计算流程,讨论分析了海面上舰船目标对海天背景紫外辐射的散射特性。运用大气传输软件MODTRAN,计算了0.3~0.4μm波段太阳、天空背景的紫外辐射特性;根据粗糙面散射理论,分别对海面和目标表面进行BRDF建模,并讨论了面元的光散射特性;设计了海面舰船目标的紫外光散射亮度计算流程,并利用此流程计算分析了某舰船模型的紫外光散射亮度。结果显示探测时间、探测方位、舰船表面蒙皮材料、舰船形状、海面散射等因素,都对舰船目标的紫外光散射特性产生影响,为完善舰船目标紫外辐射特性数据库提供有效依据。Based on rough surface bidirectional reflectance distribution function(BRDF) models and considering the sea surface effect,the process for estimating the ultraviolet scattering luminance of the ship target on the sea surface is designed.The ultraviolet scattering characteristics of a ship target in the sea and sky background are discussed and analyzed.First,the characteristics of ultraviolet(UV) radiation from the sun and the sky in the range of 0.3-0.4 mm are calculated using MODTRAN.Second,based on the rough surface scattering theory,the proposed models are built on the surfaces of the sea and target,and the light scattering characteristics of the surface element are discussed.Finally,the process for the estimation and analysis of the ultraviolet scattering luminance of the ship target on the sea surface is designed.The results show that the ultraviolet scattering characteristics of ship targets are affected by factors such as detection time,detection orientation,ship shape,and scattering from sea surface,skin material of the ship surface,among others and also provide for an effective basis to enhance the database of ultraviolet radiation characteristics of ship targets.

关 键 词：紫外光散射特性 舰船目标 双向反射分布函数 海面散射 

分 类 号：O436.2[机械工程—光学工程] TN971.1[理学—光学]