Embedding uncertainty into ocean acoustic propagation models (L)

A probabilistic formalism is proposed for the direct inclusion of environmental uncertainty into an acoustic model that describes propagation in an ocean waveguide. Incomplete environmental knowledge is characterized by a spectral representation of uncertainty using expansions of random processes in...

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Bibliographic Details
Published in:The Journal of the Acoustical Society of America 2005-03, Vol.117 (3), p.997-1000
Main Author: FINETTE, Steven
Format: Article
Language:English
Subjects:
Acoustics
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Physics
Underwater sound
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Summary:A probabilistic formalism is proposed for the direct inclusion of environmental uncertainty into an acoustic model that describes propagation in an ocean waveguide. Incomplete environmental knowledge is characterized by a spectral representation of uncertainty using expansions of random processes in terms of orthogonal random polynomials. A brief summary of the method is presented and a set of coupled differential equations describing the propagation of both the acoustic field and its associated uncertainty is derived for the case where the uncertain environment is attributed to a lack of complete information concerning the waveguide’s sound speed distribution.
ISSN:0001-4966
1520-8524
DOI:10.1121/1.1855811