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- W1963519938 abstract "It is well known that the Shannon theory of information sets an asymptotic bound on the maximal rate of transmission of information through a channel with negligible probability of error. This rate, known as the information capacity, can be computed analytically or numerically and numerous results for the capacity in terrestrial communications have been derived. Most analytic results, however, involve free space propagation while in underwater acoustics, the propagation region is spatially bounded. In this presentation, we consider the information capacity in an ocean waveguide comprised of a uniform sound speed in the water column, a penetrable, absorbing bottom and a correlated surface noise field described by the Kuperman-Ingenito source sheet model. An expression for the information capacity of the acoustic field in the water column exterior to a distributed source region is determined by first applying singular value decomposition to the Green’s function matrix to obtain independent communication channels and then using Lagrange multipliers to solve a multiply constrained optimization problem involving the mutual information between source and receive regions. [Work supported by the Office of Naval Research.]" @default.
- W1963519938 created "2016-06-24" @default.
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- W1963519938 date "2013-11-01" @default.
- W1963519938 modified "2023-09-24" @default.
- W1963519938 title "Information capacity of an acoustic field in a Pekeris waveguide with an absorbing bottom and spatially correlated surface noise field" @default.
- W1963519938 doi "https://doi.org/10.1121/1.4831096" @default.
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