【作者】 刘安安；

【导师】 吴振森；

【作者基本信息】 西安电子科技大学 ， 无线电物理， 2002， 硕士

【摘要】 本文主要研究目标与环境的光散射辐射问题。以粗糙面电磁散射和辐射理论为基础，讨论了目标激光雷达散射截面(LRCS)和双向反射分布函数(BRDF)之间的关系；利用Lowtran7大气传输模型计算了光波大气斜程衰减和阳光、天地背景辐射，讨论了湍流大气对光波传输的影响；分析了不同环境条件下目标对复杂背景辐射的光散射的特性；编制了“激光半主动制导目标与环境特性仿真软件1.0版本”，计算了激光半主动制导探测器在复杂环境中接收的目标散射回波能量，分析了大气能见度对激光制导作用距离的影响；通过建立和求解空间目标热平衡方程，计算了空间目标的平衡温度，讨论了空间目标的光辐射特性。更多还原

【Abstract】 This paper focuses on light scattering and radiation characteristic of target and environment. Based on electromagnetic scattering and radiation theories on rough surface, The relationship between - Bidirectional Reflectance Distribution Function (BRDF) and Laser Radar Cross-Section (LRCS) is introduced. Optical wave energy attenuation along slant path in the atmosphere and Solar, sky and earth atmospheric background radiation are calculated by Lowtran?. The atmospheric turbulence effect is also considered. The light scattering from target is calculated under different environment. Software "Semi-active Laser-guidance and Environment Simulation" with version 1.0 is programmed. The laser reflected energy from the target against the complex background is calculated. The acquisition ranges under conditions of different atmospheric visibility are also given. The thermal balance equation of spatial object is established and solved. The light radiation characteristic is obtained by calculating the thermal equilibrium temperature of spatial object.更多还原