North Pacific Acoustic Laboratory (NPAL) - Towed Array Measurements

Abstract

The long-term goal of this research is to understand deep-water propagation, with particular emphasis placed on the passive quiet target detection problem. Focus is on the spatial/temporal structure of acoustic paths for moving sources and moving receivers. Propagation paths are separated into two classes: bottom interacting and refracted/surface-reflected (non-bottom interacting). This research seeks to understand the impact that mid-ocean variability (internal waves, mixed layer variability) and seafloor scattering have on the detection problem.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2009
Accession Number
ADA531750

Entities

People

  • Kevin D. Heaney

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Acoustic Measurement
  • Ambient Noise
  • Arrays
  • Bottom Bounce
  • Convergence Zones (Sonar)
  • Deep Oceans
  • Deep Water
  • Detection
  • Frequency
  • Frequency Bands
  • Internal Waves
  • Measurement
  • Oceans
  • Ridges
  • Target Detection
  • Towed Arrays
  • Water

Readers

  • Acoustical Oceanography.