Accession Number:

ADA571704

Title:

Seabed Scattering Model from Low Frequency Reverberation Measurements in Shallow Water

Descriptive Note:

Annual rept.

Corporate Author:

GEORGIA INST OF TECH ATLANTA SCHOOL OF MECHANICAL ENGINEERING

Personal Author(s):

Report Date:

2011-09-30

Pagination or Media Count:

5.0

Abstract:

LONG-TERM GOALS The long-term goal of this work is to develop a low-frequency LF seabed scattering model from shallow-water SW reverberation measurements. The model can be used to predict SW reverberation and echo-to-reverberation ratio in a frequency range of 100-3000 Hz, and to analyze LF seabed scattering mechanisms at low grazing angles LGA, as well as to extract the LF seabed scattering parameters. OBJECTIVES The scientific objectives of this research in FY2011 are 1 To integrate the energy-flux method for SW reverberation with physics-based seabed scattering models in the angular domain 2 To derive LF seabed scattering strength as a function of angle and frequency from SW reverberation measurements and 3 To reveal the physics of the reverberation-derived LF seabed scattering function.

Subject Categories:

  • Physical and Dynamic Oceanography
  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE