Fractal characteristics investigation on electromagnetic scattering from 2-D Weierstrass fractal dielectric rough surface

• 来源期刊: 中国物理B(英文版)
• 关键词: dielectric rough surface 2-D band-limited Wcierstrass fractal function fractal charac-teristics Kirchhoff approximation
• 年，卷（期）: 2008,（8）
• 页码范围: 2956-2962
• 页数: 7页
• 语种: 英文

摘要

A normalized two-dimensional band-limited Weierstrass fractal function is used for modelling the dielectric rough surface. An analytic solution of the scattered field is derived based on the Kirchhoff approximation. The variance of scat-tering intensity is presented to study the fractal characteristics through theoretical analysis and numerical calculations. The important conclusion is obtained that the diffracted envelope slopes of scattering pattern can be approximated as a slope of linear equation. This conclusion will be applicable for solving the inverse problem of reconstructing rough surface and remote sensing.