Signal processing for the 1992 barents sea tomography experiment
By:  Philip G. McLaughlin
Publisher: Naval Postgraduate School; Available from National Technical Information Service
Published: 1993
Place of publication: Monterey, Calif; Springfield, Va
Language: eng
Number of pages: 64
Description: In August 1992, an acoustic tomography experiment was conducted in the Barents Sea. The objective of this thesis is the development of space-time signal processing algorithms to extract the arrival times of rays and modes for that experiment. The temporal signal processing involves pulse compression of the phase-encoded signal. Spatial signal processing consists of plane wave and modal beamforming on data fram a 16 element vertical line array. After signal processing an arrival detection, identification, and tracking algorithm is used to obtain travel time and travel time error estimates. After development and testing of these algorithms, 13 hours of acoustic data was processed for rays and eight hours of data was processed for modes. The resultant travel time information is then available for inversion to sound speed maps.
Notes: Thesis advisor(s): Miller, James H. ; Chiu, Ching-Sang.

"December 1993."

Thesis (M.S. in Engineering Acoustics and M.S. in Electrical Engineering) Naval Postgraduate School, December 1993.

Includes bibliographical references (p. 61-62).

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 gutted record recat. 5/5/00.