Measurement of Sound Propagation, Down Slope to a Bottom-Limited Sound Channel

Abstract

Signal transmission loss and spatial coherence data for source- receiver separations between 100 and 250 km were acquired in the Gulf of Mexico with a calibrated seismic measurement system (400 m deep), a towed projector (100 m deep) which emitted 67 and 173 Hz tones, and a moored Webb sound source at 988 m depth driven at 175 Hz. Environmental data such as the range dependent bathymetry and sound velocity profiles were measured. Keywords: sound transmission loss; computations; signal to noise ratio; multipath interference.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1985
Accession Number
ADA161855

Entities

People

  • B. A. Brunson
  • I. Gereben
  • M. R. Bradley
  • William M. Carey

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Acoustic Waves
  • Agreements
  • Attenuation
  • Bottom Loss
  • Frequency
  • Gain
  • Grazing Angles
  • Losses
  • Measurement
  • Mississippi
  • Noise
  • Oceans
  • Thickness
  • Transmission Loss
  • United States
  • United States Government
  • Waves

Readers

  • Acoustical Oceanography.