Accession Number:

ADA371748

Title:

Inversion of Shallow Water Bottom Sediment Properties Using AN/SQS-53C Reverberation Level Data from Exercise LWAD 99-1

Descriptive Note:

Master's thesis

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s):

Report Date:

1999-09-01

Pagination or Media Count:

121.0

Abstract:

Inversion techniques are used to infer bottom sedimentary characteristics using ANSQS-53C Reverberation Level RL data gathered during Exercise LWAD 99-1. Analysis was conducted to determine the correlation between sediment type and beam RL time series statistics, including slope and detrended higher order statistics standard deviation, skew, and kurtosis. A geographic contour plot of the spatial distribution of sediments was generated from the deviation of the RL slope of individual beamform data from the area-wide average RL slope. The resulting plot shows features similar to that of the pre-exercise sedimentary characterization map. Higher order statistics are found to be non-Gaussian which has signal processing implications.

Subject Categories:

  • Physical and Dynamic Oceanography
  • Acoustic Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE