Low Frequency Active Array Calculations in a Shallow Channel

Abstract

The acoustical performance of a submerged linear array of spherical shells in shallow water is examined by combining the T-Matrix method of solving for multiple acoustic interactions among separate bodies, with a model for the ocean as a fluid layer over a half-space of a distinct fluid. The system of source and reflected waves is analyzed by standard approximate contour integration techniques, valid for the far field of the array. Calculations using the results show the effects of shallow water on array performance.

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Document Details

Document Type
Technical Report
Publication Date
Aug 10, 2001
Accession Number
ADA486924

Entities

People

  • C. L. Scandrett
  • D. R. Canright

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Acoustic Fields
  • Amplitude
  • Contour Integrals
  • Far Field
  • Fluids
  • Frequency
  • Integrals
  • Materials
  • Plane Waves
  • Radiation
  • Shallow Water
  • Spherical Harmonics
  • Spherical Waves
  • Submarine Warfare
  • Undersea Warfare
  • Water
  • Waves

Readers

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

Technology Areas

  • Space