Middle Atlantic Bight Field Study: SUS Component

Abstract

LONG-TERM GOALS. Our long term objective is to investigate the feasibility of using broadband explosive sources such as SUS charges for inversion of oceanographic fields and sediment parameters. We are assessing the performance of linear inversion schemes based on perturbations and non-linear inversions using a combination of global search methods (Genetic Algorithm) and local least squares optimization schemes (Levenberg - Marquardt). The inverted oceanographic fields are coefficients of empirical orthogonal functions of the sound speed field in the water column and the spatially-varying bottom parameters such as sound speed and layer thickness. Also, source/receiver positions are estimated using matched field techniques. We are also estimating the spatial resolution and error properties of the inverted fields and parameters.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1997
Accession Number
ADA634891

Entities

People

  • James H Miller

Organizations

  • University of Rhode Island

Tags

Communities of Interest

  • Counter IED

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Algorithms
  • Broadband
  • Continental Shelves
  • Continental Slopes
  • Data Analysis
  • Data Reduction
  • Deep Water
  • Detection
  • Frequency
  • Genetic Algorithms
  • Group Velocity
  • Inversion
  • Rhode Island
  • Sediments
  • Three Dimensional
  • Water

Fields of Study

  • Environmental science

Readers

  • Acoustical Oceanography.
  • Operations Research
  • Plasma Physics / Magnetohydrodynamics

Technology Areas

  • AI & ML
  • AI & ML - Bayesian Inference
  • AI & ML - Machine Learning Algorithms
  • Biotechnology
  • Biotechnology - Bioremediation