Three-dimensional subterranean target identification by use of optimization techniques
(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:
https://lup.lub.lu.se/record/144406
- author
- Björkberg, Jonas and Kristensson, Gerhard LU
- organization
- publishing date
- 1997
- 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
- 2016-04-01 15:55:18
- date last changed
- 2018-11-21 20:37:22
@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}}, doi = {{10.2528/PIER95081800}}, volume = {{15}}, year = {{1997}}, }