Three-Dimensional Modeling of Narrow Band Pulse Spreading Using Normal Modes

Document Type

Article

Publication Date

10-1-1993

Department

Physics and Astronomy

School

Mathematics and Natural Sciences

Abstract

Energy from a narrow-band pulse, interacting with a time-varying ocean surface, will be spread into upper and lower sidebands. This can be modeled in a range-independent ocean environment, using normal modes and a coupling scheme based on first-order perturbation theory. The structure of the scattered signal from the two-dimensional Pierson-Moskowitz surface wave spectrum is presented. A normal-mode model with environmental inputs from a shallow sea has been used, and a comparison is made with measured data.

Publication Title

Journal of the Acoustical Society of America

Volume

94

Issue

4

First Page

2303

Last Page

2306

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