Light Scattering And Radiation Characteristic Of Target And Environment And Its Application

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.