Wave Propagation and Inversion in Shallow Water and Poroelastic Sediment
Abstract
To create a suite of computer codes (programs) that accurately model wave propagation and scattering in shallow water, to quantify the effects of poroelastic, stratified sediment and elastic mode conversion on wave propagation in shallow water at frequencies ranging from 10 Hz to several hundred kHz. To relate these effects to sonar system behavior and efficient design of sonar capable of finding buried/semi-buried/proud mines in shallow water environments, in the presence of poroelastic sediment and bubble layers. To understand the fundamental linear and nonlinear physics of wave propagation in poroelastic sediment with bubbles. To continue development and testing of K-space Integral Equation codes (K-SIE), finite difference time domain codes (FDTD), and Hybrid Parabolic marching/Finite difference (HP-MFD) and Hybrid Integral Equation/Finite Difference (HIEFD) methods for fast and accurate scattering and inverse scattering of objects buried in sediment with poroelastic (Biot) properties and containing bubble populations. To develop a Java-based, interactive, web site http://borup.aim.utah.edu [41] to make pseudo-analytic, FDTD, Integral Equation, and HIEFD and HP-MFD calculation methods in 3D and 2D, available to other researchers over the web.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1998
- Accession Number
- ADA572507
Entities
People
- James W. Wiskin
- Steven A. Johnson
Organizations
- University of Utah