Three-dimensional subterranean target identification by use of optimization techniques
(1991) In Technical Report LUTEDX/(TEAT-7013)/1-20/(1991)- 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... (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/530201
- author
- Björkberg, Jonas and Kristensson, Gerhard LU
- organization
- publishing date
- 1991
- type
- Book/Report
- publication status
- published
- subject
- in
- Technical Report LUTEDX/(TEAT-7013)/1-20/(1991)
- pages
- 20 pages
- publisher
- [Publisher information missing]
- report number
- TEAT-7013
- language
- English
- LU publication?
- yes
- additional info
- Published version: Electromagnetic Waves PIER 15, Ed. J.A. Kong, pp. 141-164, EMW Publishing, Cambridge, Massachusetts, USA, 1997.
- id
- 23af1402-87da-44c3-9568-2a4450c998cd (old id 530201)
- date added to LUP
- 2016-04-04 14:31:49
- date last changed
- 2018-11-21 21:20:51
@techreport{23af1402-87da-44c3-9568-2a4450c998cd, abstract = {{The identification of a subterranean metallic ore from scattering experiments,<br/><br> 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<br/><br> information about the shape of the target provides enough regularization to<br/><br> 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<br/><br> null field approach, and the data. The optimization is done with a Newton<br/><br> 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<br/><br> from feasible starting guesses, for realistically noise contaminated data.}}, author = {{Björkberg, Jonas and Kristensson, Gerhard}}, institution = {{[Publisher information missing]}}, language = {{eng}}, number = {{TEAT-7013}}, series = {{Technical Report LUTEDX/(TEAT-7013)/1-20/(1991)}}, title = {{Three-dimensional subterranean target identification by use of optimization techniques}}, url = {{https://lup.lub.lu.se/search/files/6381456/624844.pdf}}, year = {{1991}}, }