Radar Scattering from a Random Ocean Surface Perturbed by a Surface Current
Abstract
The scattering of radar energy from a rough ocean surface is considered using the approximations of physical optics and perturbation theory. The ocean surface is taken to be generated by a random process with zero mean value and a homogeneous covariance function represented by a wavenumber energy spectrum. For slightly rough seas the coherent and incoherent backscatter cross- sections are obtained for a general ocean spectrum. For very rough seas, the physical optics cross-sections were calculated for a Gaussian ocean spectrum neglecting shadowing. Scattering from ripples where the ocean surface radius of curvature is no longer large compared to radar wavelength was treated by perturbation theory using the magnetic dyadic Green's function for a half plane.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1975
- Accession Number
- ADA019523
Entities
People
- Bruce J. West
- John Jarem