Accession Number:

ADA612189

Title:

Measurement and Analysis of High-Frequency Scattering Statistics and Sound Speed Dispersion

Descriptive Note:

Annual rept.

Corporate Author:

PENNSYLVANIA STATE UNIV STATE COLLEGE APPLIED RESEARCH LAB

Personal Author(s):

Report Date:

2006-09-30

Pagination or Media Count:

11.0

Abstract:

The long-term goal of the present high-frequency scattering statistics work is to link the high frequency reverberation envelope distribution to measurable seafloor geoacoustic properties in conjunction with sonar system parameters such as frequency and resolution cell size, providing the foundation necessary for solving several problems related to the detection of targets in non-Rayleigh clutter. A direct link between system and environmental parameters via scattering models to the statistical distribution of reverberation will allow performance prediction for different systems based on seafloor properties, extrapolation of performance to other systembandwidths, and optimization of system parameters such as frequencybandwidth to the local environment. The long-term goal of the sound speed measurement initiative is to contribute to the assessment of different physical models for porous media to be assessed and evaluated based on the unique sound speed dispersions that they predict. This knowledge concerning the most suitable physical model for the seabed, and its limitations, can be used to improve the performance of mine hunting sonar systems.

Subject Categories:

  • Physical and Dynamic Oceanography
  • Geology, Geochemistry and Mineralogy
  • Statistics and Probability
  • Acoustic Detection and Detectors
  • Target Direction, Range and Position Finding
  • Acoustics
  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE