Ambiguity and Depth Resolution in Potential Field Inversion

Auteurs

  • Maurizio Fedi
  • Per Christian Hansen
  • Valeria Paoletti

DOI :

https://doi.org/10.1685/

Résumé

Inverse potential field problems have ambiguous solutions, and a unique solution can only be computed if additional a priori information is incorporated into the solution process. We discuss several kinds of ambiguity, and show how each type of ambiguity occurs and is handled differently. We demonstrate that potential-field data provide depth information when used in connection with certain discretizations of the problem, and that the role of the regularization term in the Tikhonov formulation is primarily to filter out noise. In addition we show how the inspection of two graphical tools, based on the singular value decomposition, can guide the regularization and also reveal how much depth information can be achieved for a given noisy problem. [DOI: 10.1685 / CSC06155] About DOI

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Publiée

2007-10-01

Numéro

Vol. 2 (2007)

Rubrique

Articles

Licence

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