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Three-dimensional subterranean target identification by use of optimization techniques

Björkberg, Jonas and Kristensson, Gerhard LU (1997) In Progress in Electromagnetics Research PIER 15. p.141-164
Abstract
The identification of a subterranean metallic ore from scattering experiments, conducted on the surface of the ground or in a bore hole, is a classic geophysical

problem. In general this problem is not well-posed. However, a priori information about the shape of the target provides enough regularization to make the problem numerically stable. The problem is solved by minimizing

the mean-square error between an eleven parameter model, based on the null field approach, and the data. The optimization is done with a Newton technique in which a singular value decomposition of the model Jacobian is

employed. The algorithm is very stable to noise and makes good reconstructions from feasible starting guesses, for... (More)
The identification of a subterranean metallic ore from scattering experiments, conducted on the surface of the ground or in a bore hole, is a classic geophysical

problem. In general this problem is not well-posed. However, a priori information about the shape of the target provides enough regularization to make the problem numerically stable. The problem is solved by minimizing

the mean-square error between an eleven parameter model, based on the null field approach, and the data. The optimization is done with a Newton technique in which a singular value decomposition of the model Jacobian is

employed. The algorithm is very stable to noise and makes good reconstructions from feasible starting guesses, for realistically noise contaminated data. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Progress in Electromagnetics Research PIER
volume
15
pages
141 - 164
publisher
EMW Publishing
ISSN
1070-4698
DOI
10.2528/PIER95081800
language
English
LU publication?
yes
id
86b1a097-6001-45ba-9d36-b6978d5bd6c0 (old id 144406)
date added to LUP
2007-06-27 11:16:02
date last changed
2016-11-25 12:34:49
@article{86b1a097-6001-45ba-9d36-b6978d5bd6c0,
  abstract     = {The identification of a subterranean metallic ore from scattering experiments, conducted on the surface of the ground or in a bore hole, is a classic geophysical<br/><br>
problem. In general this problem is not well-posed. However, a priori information about the shape of the target provides enough regularization to make the problem numerically stable. The problem is solved by minimizing<br/><br>
the mean-square error between an eleven parameter model, based on the null field approach, and the data. The optimization is done with a Newton technique in which a singular value decomposition of the model Jacobian is<br/><br>
employed. The algorithm is very stable to noise and makes good reconstructions from feasible starting guesses, for realistically noise contaminated data.},
  author       = {Björkberg, Jonas and Kristensson, Gerhard},
  issn         = {1070-4698},
  language     = {eng},
  pages        = {141--164},
  publisher    = {EMW Publishing},
  series       = {Progress in Electromagnetics Research PIER},
  title        = {Three-dimensional subterranean target identification by use of optimization techniques},
  url          = {http://dx.doi.org/10.2528/PIER95081800},
  volume       = {15},
  year         = {1997},
}