摘要
海面作为舰船的主要背景,其红外辐射特性对于舰船红外仿真研究具有重大意义。介绍了三种海面发射率的计算模型:灰体模型、经验模型和理论模型,并针对红外仿真中舰船辐射场和海面背景红外热像模拟两方面的计算要求,分析比较了它们的计算结果。结果显示,对于舰船辐射场计算而言,使用经验模型已经具有足够的精度;而在模拟海面背景红外热像时,在天顶角较大的情况下必须使用理论模型。
The infrared radiation characteristics of sea surface are important for infrared image simulation ship, because sea surface is the major background of ship. Three kinds of sea surface emissivity models are introduced, which are gray-body model, experiential model and theoretical model. The models are compared and analyzed according to different demands of infrared simulation. The results show that experiential model is precious enough and time saving in computation of radiation field of ship, while in simulation of sea surface infrared image, the theoretical model is the only choice in large zenith angle.
出处
《红外与激光工程》
EI
CSCD
北大核心
2007年第1期36-38,共3页
Infrared and Laser Engineering
关键词
波浪海面
红外仿真
海面发射率
Rough sea surface
Infrared image simulation
Sea surface emissivity
