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Three-dimensional subterranean target identification by use of optimization techniques

Författare:
Publiceringsår: 1991
Språk: Engelska
Sidor:
Publikation/Tidskrift/Serie: Technical Report LUTEDX/(TEAT-7013)/1-20/(1991)
Volym: TEAT-7013
Dokumenttyp: Rapport
Förlag: [Publisher information missing]

Sammanfattning

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.

Nyckelord

  • Electrical Engineering, Electronic Engineering, Information Engineering
  • Other Electrical Engineering, Electronic Engineering, Information Engineering

Övriga

Published
  • Electromagnetic theory-lup-obsolete

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