Accession Number:

AD1013879

Title:

Acoustic Coherent Backscatter Enhancement from Aggregations of Point Scatterers

Descriptive Note:

Technical Report

Corporate Author:

Department of Mechanical Engineering, University of Michigan Ann Arbor United States

Personal Author(s):

• Dowling,David R.

Report Date:

2015-09-30

Pagination or Media Count:

7.0

Abstract:

The overall long-term goal for this project is to determine if and how acoustic coherent backscatter enhancement ACBE can be used for classification of active sonar returns in a wide variety of ocean environments. During its first four years, this project has focused on simulations of near- and far-field acoustic multiple scattering from two- and now three-dimensional aggregations of omnidirectional point scatterers to determine the parametric realms in which ACBE might be observed, and its characteristics when it is observed.

Descriptors:

• acoustic waves
• backscattering
• ocean models
• ocean environments
• omnidirectional
• underwater acoustics
• waveguides
• numerical analysis
• harmonics
• acoustic arrays
• simulation

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE