Improved Sea Surface Scattering Model
Abstract
This report develops an integral equation for the fluctuating zero mean part of the field scattered by a randomly rough perfectly conducting surface. The development starts with Magnetic Field Integral Equation for the current and then Fourier transforms this equation to obtain an integral equation for the scattered field in transform space. The method of smoothing is then used to develop an integral equation for the fluctuating part of the scattered field. The born term is this integral equation of the second kind contains much more information than the classical Kirchhoff approximation. It is shown to reduce to the Kirchhoff approximation for gently sloping surface with large rms roughness and the Rice perturbation result for small surface roughness. This new Born term contains factors which appear to have the potential capability for going beyond existing approximations but further analytical and numerical work is required to quantify this hypothesis. Keywords: Rough surface scattering; Electromagnetic scattering.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 15, 1988
- Accession Number
- ADA205745
Entities
People
- Gary S. Brown
Organizations
- Virginia Tech