Ambiguity Surface Manifestation of Downslope Converted Noise Sources.

Abstract

This report deals with the manifestation of downslope converted continental shelf noise sources in the matched-field processor (MFP) ambiguity surface. Of interest here is how noise sources outside the range of interest leak into the ambiguity surface through the sidelobe structure of the effective MFP beam (or cell) pattern. The focus is on the appearance of the matched field processing ambiguity surface due to continental shelf noise, primarily ships, that gets coupled in the deep sound channel. This study is carried out with simulations using the parabolic equation (PE) model. PE is used to simulate the pressure field across a receiving vertical line array in deep water (4OOOm), 1750 km from the continental shelf. (AN)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1994
Accession Number
ADA292424

Entities

People

  • Jean-marie Q. Tran
  • William Hodgkiss

Organizations

  • Scripps Institution of Oceanography

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Ambient Noise
  • Ambiguity
  • Continental Shelves
  • Continental Slopes
  • Convergence Zones (Sonar)
  • Deep Water
  • Dynamic Range
  • Frequency
  • Geometry
  • Losses
  • Low Angles
  • Military Research
  • Shallow Depth
  • Shallow Water
  • Simulations
  • Transmission Loss
  • Water

Readers

  • Acoustical Oceanography.
  • Theoretical Analysis.