Scattering Characteristics of Complex Target from Solar Irradiance and Sky-ground Background Radiance in Infrared Spectrum
Scattering characteristic of complex target from the solar irradiance and sky-ground background radiance plays an important role in both theoretical researches and practical engineering.The solar irradiance and sky-ground background radiance and scattering property are discussed in this paper.BRDF (Bidirectional Reflectance Distributional Function) relates incident irradiance with scattering radiance while LRCS (Laser Radar Cross Section) shows the scattering characteristic of complex target.By using KA (Kirchhoff Approximation) method,we calculate the LCRS of facet of target and then get BRDF of each facet.Then all the visible faces are added up.Due to the complexity of the atmosphere model,MODTRAN is used to calculate the solar irradiance and background radiance.Finally,to give an example,a model airplane is taken for instance.The results indicate the effectiveness of the method we proposed.
scattering characteristic of complex target BRDF LRCS solar irradiance sky-ground background radiance
Xing Guo Zhensen Wu Longxiang Linghu Yufeng Yang
School of Science,Xidian University,Xian,Shaanxi,China
国际会议
沈阳
英文
367-371
2012-07-27（万方平台首次上网日期，不代表论文的发表时间）