High-Frequency Propagation in the Ocean Waveguide

Abstract

LONG-TERM GOALS. The long-term goals are to advance our understanding of the nature of high-frequency (8-50 kHz) sound propagation in the ocean waveguide, with emphasis on surface, bottom, and volume effects on the forward-propagated field. OBJECTIVES. The objective of this work is to learn as much as possible about the channel impulse response (or transfer function) and its dynamics. Ideally, we would like to characterize the behavior as a function of 1) source/receiver geometry, 2) arrival angle, 3) carrier (central) frequency, 4) ocean volume structure, 5) bottom type, and 6) boundary dynamics, including effects of surface waves and bubbles. The band of interest has a variety of applications, including mine countermeasures, tracking odontocetes in navy ranges, and bottom mapping. However, the core application of interest in this program is for acoustic communications.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2006
Accession Number
ADA630889

Entities

People

  • Katherine H. Kim
  • Michael B. Porter

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Acoustic Communications
  • Acoustic Fields
  • Acoustics
  • Ambient Noise
  • Equations
  • Frequency
  • Integral Equations
  • Integrals
  • Matched Filters
  • Optical Lattices
  • Scattering
  • Surface Roughness
  • Surface Waves
  • Underwater Acoustic Communications
  • Underwater Acoustics
  • Waveguides
  • Waves

Readers

  • Acoustical Oceanography.