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Eigenray Tracing in an Ocean Using Fermat's Principle

Shashidhar, NS and Anand, GV (1995) Eigenray Tracing in an Ocean Using Fermat's Principle. In: Journal of Sound and Vibration, 186 (2). pp. 231-243.

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A novel numerical approach is presented for solving the problem of three-dimensional eigenray tracing in an ocean channel. A variational method is developed based on Fermat’s principle which yields eigenrays directly without having to search for a ray which reaches the receiver. The algorithm yields true Fermat rays: i.e., eigenrays for which the travel-time is stationary rather than minimal. The numerical results included in this paper show the algorithm to be more accurate and faster than a method based on Snell’s law.

Item Type: Journal Article
Publication: Journal of Sound and Vibration
Publisher: Academic Press Limited
Additional Information: The copyright belongs to Academic Press Limited.
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 25 Aug 2008
Last Modified: 19 Sep 2010 04:29
URI: http://eprints.iisc.ac.in/id/eprint/7603

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