Inversion of shallow water bottom sediment properties using AN/SQS-53C reverberation level data from exercise LWAD 99-1
By: by David A. Schalm
Publisher: Naval Postgraduate School; Available from National Technical Information Service
Published: 1999
Place of publication: Monterey, Calif; Springfield, Va
Language: eng
Number of pages: 11
Description: Inversion techniques are used to infer bottom sedimentary characteristics using AN/SQS-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.
Notes: "September 1999".

Thesis advisor(s): Robert H. Bourke, James H. Wilson.

Thesis (M.S. in Physical Oceanography) Naval Postgraduate School, September 1999.

Includes bibliographical references (p. 107-110).

Approved for public release; distribution unlimited.

Also Available online.

Mode of access: World Wide Web.

System Requirements: Adobe Acrobat reader.

US Navy (USN) author.

dk/dk cc:9116 03/02/00