Accession Number:

ADA574654

Title:

Acoustic Resonance Classification of Swimbladder-Bearing Fish at Multiple Scales

Descriptive Note:

Annual rept.

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC ACOUSTICS DIV

Report Date:

2012-09-30

Pagination or Media Count:

12.0

Abstract:

The long-term goal is to accurately describe the spatial and temporal distributions of fish and quantify the mid-frequency clutter characteristics of fish. The objective is to conduct a new class of quantitative studies of acoustic scattering by swimbladder-bearing fish utilizing new broadband-acoustic technology that is optimized for use in the resonance scattering region of fish. The studies, which include use of a long-range horizontal-looking system and a short-range downward-looking system, exploit the resonance scattering of the fish to significantly reduce ambiguities in the interpretation of the data.

Subject Categories:

  • Biological Oceanography
  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE