Acoustic Response of Underwater Munitions near a Sediment Interface: Measurement Model Comparisons and Classification Schemes

Abstract

The overall objective of SERDP MR-2231 is to investigate the use of broadband sonar to detect and classify underwater munitions near a water sediment interface. The research combined at-sea experiments, target scattering models, and the signal processing required to test binary classification (i.e., target versus non-target). Data model comparisons provided validation of finite-element (FE) models. Once validated, FE models are executed to obtain freefield scattering amplitudes, which are used by an acoustic ray model to investigate variations in target scattering geometry and environmental properties. Our central hypothesis is that the environment and the geometry within that environment can alter an acoustic response of a target, so the target-in-the-environment-response (TIER) must be taken into account during the development of robust detection and classification strategies.

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Document Details

Document Type
Technical Report
Publication Date
Apr 23, 2015
Accession Number
ADA619420

Entities

People

  • Steven Kargl

Organizations

  • University of Washington

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Properties
  • Acoustic Scattering
  • Acoustics
  • Computational Science
  • Coordinate Systems
  • Data Acquisition
  • Data Transmission
  • Detection
  • Detectors
  • Frequency Bands
  • Geometry
  • Repetition Rate
  • Seabed
  • Supervised Machine Learning
  • Test And Evaluation
  • Unexploded Ammunition
  • Warning Systems

Readers

  • Acoustical Oceanography.
  • Computational Modeling and Simulation