Normal-mode models OGOPOGO and NOGRP applied to the 2006 ONR Reverberation Modeling Workshop problems

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Authors
  1. Ellis, D.D.
Corporate Authors
Defence R&D Canada - Atlantic, Dartmouth NS (CAN)
Abstract
A Reverberation Modeling Workshop was held in Austin, Texas, 7–9 November 2006. Participants were asked to describe their models, and submit solutions to a number of problems. The problems were described in a number of documents accessible over the internet. Twenty problems were specified. All were shallow water environments, with various geometries, and scattering functions. Each problem typically had three frequencies, three receiver depths, and several pulse bandwidths; a towed array was specified for 5 problems. All problems used a homogeneous infinite seabed. Doing all the problems would require hundreds or even thousands of runs, so people were selective. There were essentially 3 classes of problems: 2D computationally intensive physics-based models with realizations of rough bottoms, 3D flat-bottom (pseudomonostatic) problems with scattering functions (Lambert’s rule, and perturbation theory), and 3D bistatic range-dependent problems (with a towed array). This paper presents an overview of the DRDC Atlantic normal-mode reverberation models OGOPOGO and NOGRP. Comparative results are presented for a number of the 3D range-independent problems, including bistatic geometry, and towed array beam patterns.

Il y a un résumé en français ici.

Report Number
DRDC-ATLANTIC-TM-2006-289 — Technical Memorandum
Date of publication
01 Jun 2008
Number of Pages
90
DSTKIM No
CA031802
CANDIS No
530784
Format(s):
CD ROM

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