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Published on: August 21, 2018
A stochastic response surface formulation of acoustic propagation through an uncertain ocean waveguide environment
1Acoustics Division, Naval Research Laboratory, Washington, DC 20375, USA.
Abstract:
Stochastic basis expansions are applied to formulate and solve the problem of including uncertainty in numerical models of acoustic wave propagation within ocean waveguides. As an example, a constrained least-squares approach is used to estimate the intensity of an acoustic field whose waveguide environment has uncertainty in both source depth and sound speed. The mean intensity, a second moment of the field, and its probability distribution are computed and compared with independent Monte-Carlo computations of these quantities. Very good agreement is obtained, indicating the potential of stochastic basis expansions for describing multiple sources of uncertainty and their effect on acoustic propagation.
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