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Identifier 000397501
Title An iterative scheme for estimating the acoustic field in sea environment with an elastic seabed
Alternative Title Ένα επαναληπτικό σχήμα για τον υπολογισμό του ακουστικού πεδίου σε θαλάσσιο περιβάλλον με ελαστικό πυθμένα
Author Μαστρόκαλος, Ιωάννης
Thesis advisor Ταρουδάκης, Μιχαήλ
Abstract This work deals with a suggested technique for the calculation of the complex eigenval¬ues and associated eigenfunctions of the "depth problem", associated with the sound propagation in range-independent shallow water environment over a homogeneous elas¬tic half-space, when the sound speed profile in the water varies with depth. The idea is that the eigenvalues in such an environment can be estimated by means of an iterative procedure, initialized by the Effective-Depth method for a constant sound speed profile. The eigenfunctions are computed numerically by use of the finite-difference approach and, eventually, the computation of the acoustic pressure field is possible in terms of an eigenfunction series. The efficiency of the suggested technique is tested by comparing its results to those obtained by the KRAKEN-C normal mode program.
Language English
Subject Depth problem
Πρόβλημα βάθους
Issue date 2015-11-20
Collection   School/Department--School of Sciences and Engineering--Department of Mathematics and Applied Mathematics--Post-graduate theses
  Type of Work--Post-graduate theses
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