Fractal Rough Surface Light Scattering Characteristics

In the research realm of the target identify, an important topic is to minish the laser radar cross section of the space target for target stealth.The laser radar probes a target is based on the target under the laser, the space and time distribute characteristic of the strength﹑polarization and phasic of the laser scattering etc. to identify a target. the rough degree of the target surface is the important factor that influences the scattering characteristic of the target laser.The study of the rough surface scattering is very important to the identifies and characteristic distill of the space target. Usually on the study of in the past rough surface scattering, the period function or random function are the mathematics model of the rough surfaces. but in the nature rough surface is not pure period or completely random.As far as statistics view is considered, one-dimensional﹑two-dimensional random rough surface, also all exist the likeness and the self-affine in the certain degree ,and have a certain fractal characteristic. We adopt the fractal theories that can describe actual rough surface betterly.By the fractal theories the thesis acquire one- dimensional﹑two-dimensional random rough surface model,and study scattering characteristic of light on one-dimensional﹑two-dimensional fractal rough surface.The thesis mainly analysis from the following four aspects:1. From the model study of the fractal random rough surface, we acquire one dimensional﹑two dimensional fractal random rough surface model with fractal theory;2. The calculation of the scattering field of light; the establishment of the scattering light'intensity model, and the number calculation of the intensity distribute;3. The study on the laser radar cross section of one-dimensional fractal rough surface target;and the number calculation of the scattering intensity of two-dimensional fractal the rough surface target;4.Through shadowing effect,we analysis light scattering characteristic of fractal rough surface.Through the research toward these problems, it is available to the further study of the light scattering characteristic of the space target surface, and provide a necessary...