红外技术Issue(1)：47-49,3.
半透明平板对辐射亮度的衰减影响分析
An Analysis on the Influence of Radiance Attenuation from a Semi-transparent Slab
摘要
Abstract
As a medium to transport radiance for semi-transparent slab, the influence of attenuation from a semi-transparent slab to radiance was discussed. By tracing the route of each ray with ray-racing method in forward and reversal direction, the attenuation from a semi-transparent slab and the reflection of the surface was taken into consideration. Compared with the traditional arithmetic which only consider the attenuation from a semi-transparent slab, the calculated results were more accurate after considering the reflection of the surface. Especially when the launching angle is π/2, the precision will be 11.97 times high.关键词
辐射亮度/光线追迹法/亮度衰减/反射影响Key words
radiance/ray-racing method/attenuation of radiance/effect of reflection分类
信息技术与安全科学引用本文复制引用
徐航,孟卫华,周珩,孙金霞..半透明平板对辐射亮度的衰减影响分析[J].红外技术,2013,(1):47-49,3.基金项目
航空科学基金项目,编号:20100112002 （）
