Parallel Methods for the Solution of Large-Scale Radiation and Inverse Scattering Problems
Hesford, Andrew J.
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https://hdl.handle.net/2142/81058
Description
Title
Parallel Methods for the Solution of Large-Scale Radiation and Inverse Scattering Problems
Author(s)
Hesford, Andrew J.
Issue Date
2007
Doctoral Committee Chair(s)
Chew, Weng Cho
Department of Study
Electrical and Computer Engineering
Discipline
Electrical and Computer Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Engineering, Electronics and Electrical
Language
eng
Abstract
A parallel MLFMA is also developed for 3-D, penetrable, acoustic scatterers. This is paired with the distorted-Born iterative method (DBIM) for inverse scattering. DBIM requires repeated solutions of the forward problem to compute an image. With the linear complexity offered by the MLFMA forward solver, DBIM reconstructions proceed with greatly-reduced computation. This allows the solution of very large inverse-scattering problems.
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