Skip to Main Content
Book Chapter

Integral-Equation Method for Modeling Transient Diffusive Electromagnetic Scattering

Evert C. Slob
Evert C. Slob
1 Applied Geophysics Section, Department of Applied Earth Sciences, Delft University of Technology, P.O. Box 5028, 2600 GA Delft, The Netherlands.
Search for other works by this author on:
Peter M. van den Berg
Peter M. van den Berg
2Laboratory of Electromagnetic Research, Department of Electrical Engineering, Delft University of Technology, P.O. Box 5031, 2600 GA Delft, The Netherlands.
Search for other works by this author on:
January 01, 1999


Standard 3-D integral-equation methods using pulse expansion functions and point matching have difficulties with large contrasts in conductivity between the body and the host. We formulate a new expansion with rectangular building blocks and trilinear functions that more accurately models general current distributions inside the scattering body without increasing the number of unknowns. The formulation is in the frequency domain; to transform results to the time domain, we solve for the coefficients of an expansion of the decaying field in transients that are determined analytically by the behavior of an iterative solution of the integral equation. The method requires a modest number of frequencies and is stable and accurate even at late times.

You do not currently have access to this article.
Don't already have an account? Register

Figures & Tables


Geophysical Developments Series

Three-Dimensional Electromagnetics

Society of Exploration Geophysicists
ISBN electronic:
Publication date:
January 01, 1999




A comprehensive resource of eBooks for researchers in the Earth Sciences

This Feature Is Available To Subscribers Only

Sign In or Create an Account

This PDF is available to Subscribers Only

View Article Abstract & Purchase Options

For full access to this pdf, sign in to an existing account, or purchase an annual subscription.

Subscribe Now