Prediction of the beamformed acoustic ray arrival structure for the 1992 Barents Sea coastal tomography test
By:  John L. Mykyta
Contributors: Naval Postgraduate School (U.S.)
Publisher: Naval Postgraduate School; Available from National Technical Information Service
Published: 1993
Place of publication: Monterey, Calif; Springfield, Va
Language: eng
Number of pages: 39
Description: In an effort to solve the forward propagation problem associated with the 1992 Barents Sea Polar Front Experiment Tomography Test, the transmission of a 224 Hz pulse signal from a near bottom sound source to a vertical hydrophone array was simulated based on three-dimensional ray theory. based on three- dimensional ray theory. Through numerical raytracing, followed by eigenray searches and estimations of ray amplitudes, searches and estimations of ray amplitudes, phases and travel times, the arrival structure as a function of time and elevation angle was constructed. The simulation was performed for both a two-dimensional and three-dimensional modeled ocean environment in order to examine the significance of three-dimensional effects. The predicted arrival structures compare well with the observed data. Three-dimensional effects proved to be significant only for the latest arrivals.
Notes: Thesis advisor(s): Chiu, Ching-Sang ; Miller, James H.

Cover title:  Prediction of the plane wave beamformed acoustic arrival ...

"December 1993."

Thesis (M.S. in Physical Oceanography) Naval Postgraduate School, December 1993.

Bibliography: p. 36-37.

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US Navy (USN) author.