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Numerical modeling of geophysical structures excited by an electromagnetic wave
Author(s) -
Cauterman M.,
Nguyen Q. T.,
Degauque P.
Publication year - 1982
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/rs017i005p01086
Subject(s) - excitation , dipole , finite element method , magnetic dipole , plane wave , physics , integral equation , geophysics , exploration geophysics , electromagnetic radiation , finite difference method , excited state , computational physics , numerical analysis , mathematical analysis , mathematics , optics , quantum mechanics , thermodynamics
The numerical solution for the electromagnetic response of inhomogeneities of any shape in the ground has been developed for a plane wave or electric or magnetic dipole excitation. Two approaches are usually used depending on the structure of the ground in which the inhomogeneity is embedded. For a horizontally stratified ground, the solution is obtained in the form of an integral equation system, while for a heterogeneous medium, the finite element or the finite difference method is used. A brief review of these techniques is made, and examples of application are given. Furthermore, the limitations of each of these models are outlined.