SCATTERING FROM SURFACES WITH DIFFERENT ROUGHNESS SCALES: ANALYSIS AND INTERPRETATION

Abstract

The report discusses several approaches to scattering from slightly rough, very rough, composite, and rough spherical surfaces. Average incoherent scattering cross sections for slightly rough surfaces are obtained using a perturbation technique for a perfect conductor and for a surface material which is homogeneous. Three optics techniques are presented which yield scattering cross sections for very rough surfaces, and it is shown that all give the same solution for Gaussian surfaces. Composite surfaces, i.e. ones consisting of both slightly rough and very rough structures together, are analyzed, and a heuristic physical derivation of their scattering cross section is presented. Average backscattering cross sections for rough spherical surfaces also are presented. Both the coherent and incoherent cross sections are given for slightly rough and very rough spheres. Physical interpretation of the scattering mechanism is emphasized.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1967
Accession Number
AD0662751

Entities

People

  • Donald E. Barrick
  • William H. Peake

Organizations

  • Battelle Memorial Institute

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Backscattering
  • Chemical Compounds
  • Chemical Engineering
  • Chemistry
  • Composite Materials
  • Diffraction
  • Electromagnetic Scattering
  • Incoherent Scattering
  • Materials
  • Mathematical Analysis
  • Measurement
  • Polarization
  • Probability
  • Probability Density Functions
  • Random Variables
  • Scattering
  • Scattering Cross Sections

Fields of Study

  • Physics

Readers

  • Acoustical Oceanography.
  • Calculus or Mathematical Analysis
  • Molecular Photonics/Laser Physics