Remote Sensing in Fluctuating Range-Dependent Littoral Environments with Clutter

Abstract

The ongoing research addresses two areas crucial to the effective performance of Navy sonar systems in range-dependent shallow water environments. The first is an understanding of the characteristics of clutter and background reverberation in long range sonars. This is being used to develop operational and signal processing techniques to mitigate the effects of clutter and reverberation in order to enhance detection of man-man targets. In the second area, the dominant causes of fluctuation in measured acoustic signals is examined and used to determine the extent to which environmental variabilities limit our ability to perform source localization and environmental parameter estimation through match-field processing and beamforming in fluctuating ocean waveguides.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2005
Accession Number
ADA572924

Entities

People

  • Purnima Ratilal

Organizations

  • Northeastern University

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Acoustic Signals
  • Acoustic Waves
  • Continental Shelves
  • Detection
  • Environment
  • Frequency
  • Image Processing
  • Internal Waves
  • New Jersey
  • Remote Sensing
  • Reverberation
  • Scattering
  • Shallow Water
  • Signal Processing
  • Statistical Analysis
  • Three Dimensional
  • Waveguides

Readers

  • Acoustical Oceanography.