Ray Solutions to Sound Scattering by Complex Bodies: Application to Zooplankton.

Abstract

Acoustic surveys of zooplankton in the freshwater and marine environments result in echograms displaying spatial patterns of volume scattering strength and sometimes target strength data. A crucial element to the interpretation of the data is understanding the acoustic scattering properties of the individual animals. Because of the complexity of the boundary conditions of the animals, approximate scattering models have been developed. In this paper, laboratory backscattering data from various types of zooplankton are presented and compared with some of the models. Much of the modeling has involved the use of ray formulations- a subject that was significantly advanced by Uberall.

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Document Details

Document Type
Technical Report
Publication Date
Feb 14, 2000
Accession Number
ADA373754

Entities

People

  • Dezhang Chu
  • Peter Wiebe
  • Timothy K. Stanton

Organizations

  • Woods Hole Oceanographic Institution

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Scattering
  • Acoustic Waves
  • Acoustics
  • Aquatic Organisms
  • Backscattering
  • Boundaries
  • Broadband Transducers
  • Data Sets
  • Ecology
  • Fluids
  • Frequency
  • Gas Bearings
  • Matched Filters
  • Scattering
  • Target Strength
  • Targets
  • Zooplankton

Readers

  • Acoustical Oceanography.
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Marine Ecotoxicology