Linear systems theory and its relationship to ocean acoustics
Ziomek, Lawrence J.
MetadataShow full item record
The purpose of this talk is to demonstrate the consistency and relationships between linear systems theory and the physics of propagation of small‐amplitude acoustic signals in fluid media. Using the principles of linear, time‐variant, space‐variant filter theory and time‐domain and spatial‐domain Fourier transforms, derivations of the solutions of the linear, three‐dimensional, inhomogeneous wave equation for (1) an unbounded isospeed fluid medium, (2) and unbounded fluid medium with speed of sound an arbitrary function of depth, and (3) a full‐wave, pulse‐propagation model for three‐dimensional wave propagation in a Pekeris waveguide are presented. Characterizing a fluid medium as a linear filter is valid since this involves trying to solve the linear wave equation. Computer simulation results are presented.
The article of record as published may be found at https://doi: 10.1121/1.2028979
Showing items related by title, author, creator and subject.
Ziomek, Lawrence J. (Monterey, California. Naval Postgraduate School, 2001-10-26); NPS-EC-02-001A set of pulse-propagation coupling equations is derived. They couple the output electrical signal at a point element in a receive array to the transmitted electrical signal at the input to a transmit array via the complex ...
Hudspeth, Robert Turner (University of Washington, 1966);The study of the effect of resonant expansion systems on the propagation of long waves is presented in this thesis as a design problem in coastal hydraulics. Two previous studies which have been made on similar systems ...
Walden, Cleon A. (Monterey, California. Naval Postgraduate School, 1991-12);Breather solitons in a one-dimensional lattice of coupled nonlinear oscillators are numerically investigated. These are localized nonpropagating steady states that exist at frequencies either below the linear cutoff ...