Geo-Acoustic Inversion of the PROSIM '97 Experimental Data Using Simplex Simulated Annealing

Abstract

The determination of sediment type is an important factor in the environmental assessment of shallow-water locations. For mine countermeasure operations, the sediment (seabed) can have a strong influence on the type and duration of the operation to be performed. For antisubmarine warfare operations, the sediment type influences the acoustic transmission loss and therefore the range of detection. The direct measurement of ocean bottom properties by core sampling, for example, is a difficult and time consuming process. The application of efficient inversion techniques on measured acoustic data makes it possible to extract average bottom properties in shallow-water regions by use of numerical simulations. A complete geo-acoustic inversion can be obtained within a few hours, which is an important factor in Rapid Environmental Assessment.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2000
Accession Number
AD1113815

Entities

People

  • F. B. Jensen
  • M. R. Fallat
  • P. L. Neilsen

Organizations

  • SACLANT ASW Research Centre

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Acoustic Fields
  • Acoustic Measurement
  • Acoustic Propagation
  • Acoustic Properties
  • Acoustic Signals
  • Acoustics
  • Agreements
  • Algorithms
  • Attenuation
  • Broadband
  • Experimental Data
  • Frequency
  • Measurement
  • Mediterranean Sea
  • Nato
  • Ocean Environments
  • Physical Properties
  • Random Variables
  • Seabed
  • Shallow Water
  • Simplex Method
  • Transmission Loss

Readers

  • Coastal Oceanography
  • Computational Modeling and Simulation
  • Operations Research