A Physical Optics Approach to the Electromagnetic Field Scattered by Simplified Ship-Sea Models.

Abstract

A technique is presented to calculate the backscattered field from a simplified ship-sea model with the sea represented by a one-dimensional composite surface, and the ship by a flat plate. The physical optics approximation was used to obtain an expression for the received voltage as a single integral over the profile of the surface. Four principle scattering mechanisms of the model were examined independently to show their effect on the radar return. A composite signature was then calculated for several mode geometries. The calculated signatures were compared with measured signatures and good agreement was obtained. In all signatures the ship model return could be distinguished from the return due to the other scattering mechanisms. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1977
Accession Number
ADA081122

Entities

People

  • Daniel J. Ryan

Organizations

  • Ohio State University

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Backscattering
  • Capillary Waves
  • Composite Materials
  • Diffraction
  • Electric Fields
  • Electrical Engineering
  • Electromagnetic Fields
  • Engineering
  • Geometry
  • Gravity Waves
  • Magnetic Fields
  • Radar
  • Scattering
  • Ship Models
  • Transmitters
  • United States
  • Waves

Fields of Study

  • Physics

Readers

  • Plasma Physics.
  • Radar Systems Engineering.
  • Theoretical Analysis.