Rough Surface Acoustic Scattering and Scattering of Acoustic Waves from Rough Surfaces.

Abstract

Measurements have been made of sound scattered in the specular direction by fixed rough surfaces. The surfaces used were physical realizations of computer generated topographies which corresponded to Gaussian distributions in height to within specified limits. Measurements were made in water using 0.5-, 1.0-, and 2.25-MHz transducers. Transient pulse analysis techniques were used to provide information about the scattered pulse over a wide range of frequencies. Comparisons are made with several theoretical models including a multiple scattering model. The scattered field is also illustrated by means of schlieren visualization. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Apr 02, 1979
Accession Number
ADA070630

Entities

People

  • Earl Callen
  • Susan K. Numrich

Organizations

  • American University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Fields
  • Acoustic Scattering
  • Acoustic Waves
  • Acoustics
  • Computers
  • Data Analysis
  • Frequency
  • Geometry
  • Measurement
  • Military Research
  • Reflection
  • Resonant Frequency
  • Scattering
  • Topography
  • Transducers
  • Visualizations
  • Waves

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Fluid Dynamics.