Calculation of electromagnetic field components in frequency and time domain using dipole source excitation and layered earth model

Documentation of software development

Juhani Korkealaakso, Pauli Saksa

Research output: Book/ReportReportProfessional

Abstract

The completely generalized program that calculates the mutual coupling ratios of two loops over an n-layer earth model in four coil configuration (horizontal coplanar, perpendicular, vertical coplanar and ver-tical coaxial) systems has been modified to take advantage of a digital linear filter method. This method rapidly evaluates the many Hankel transform integrals encountered in layered earth electromagnetic modelling. The program is valid for any frequency, coil separation or coil altitude and any resistivities, dielectric constants and relative magnetic permeabilities of the layers. Applying this rapid and thus inexpensive method it has also been possible to develop a computer program that calculates the time domain electromagnetic response of a multilayered earth for the Crone PEM dipole system. The conversion into the time domain involves Fourier series summation of the matched complex mutual coupling ratios of the layered earth models computed by the digital linear filter method.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages50
ISBN (Print)951-38-2630-9
Publication statusPublished - 1986
MoE publication typeD4 Published development or research report or study

Publication series

NameTiedotteita / Valtion teknillinen tutkimuskeskus
PublisherVTT
Volume597

Fingerprint

electromagnetic field
filter
electrical resistivity
transform
permeability
software
calculation
documentation
software development
method
modeling
programme

Keywords

  • geophysics
  • environmental surveys
  • municipal engineering
  • landfills
  • leachate
  • monitoring

Cite this

Korkealaakso, J., & Saksa, P. (1986). Calculation of electromagnetic field components in frequency and time domain using dipole source excitation and layered earth model: Documentation of software development. Espoo: VTT Technical Research Centre of Finland. Valtion teknillinen tutkimuskeskus. Tiedotteita, No. 597
Korkealaakso, Juhani ; Saksa, Pauli. / Calculation of electromagnetic field components in frequency and time domain using dipole source excitation and layered earth model : Documentation of software development. Espoo : VTT Technical Research Centre of Finland, 1986. 50 p. (Valtion teknillinen tutkimuskeskus. Tiedotteita; No. 597).
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abstract = "The completely generalized program that calculates the mutual coupling ratios of two loops over an n-layer earth model in four coil configuration (horizontal coplanar, perpendicular, vertical coplanar and ver-tical coaxial) systems has been modified to take advantage of a digital linear filter method. This method rapidly evaluates the many Hankel transform integrals encountered in layered earth electromagnetic modelling. The program is valid for any frequency, coil separation or coil altitude and any resistivities, dielectric constants and relative magnetic permeabilities of the layers. Applying this rapid and thus inexpensive method it has also been possible to develop a computer program that calculates the time domain electromagnetic response of a multilayered earth for the Crone PEM dipole system. The conversion into the time domain involves Fourier series summation of the matched complex mutual coupling ratios of the layered earth models computed by the digital linear filter method.",
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author = "Juhani Korkealaakso and Pauli Saksa",
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Korkealaakso, J & Saksa, P 1986, Calculation of electromagnetic field components in frequency and time domain using dipole source excitation and layered earth model: Documentation of software development. Valtion teknillinen tutkimuskeskus. Tiedotteita, no. 597, VTT Technical Research Centre of Finland, Espoo.

Calculation of electromagnetic field components in frequency and time domain using dipole source excitation and layered earth model : Documentation of software development. / Korkealaakso, Juhani; Saksa, Pauli.

Espoo : VTT Technical Research Centre of Finland, 1986. 50 p. (Valtion teknillinen tutkimuskeskus. Tiedotteita; No. 597).

Research output: Book/ReportReportProfessional

TY - BOOK

T1 - Calculation of electromagnetic field components in frequency and time domain using dipole source excitation and layered earth model

T2 - Documentation of software development

AU - Korkealaakso, Juhani

AU - Saksa, Pauli

PY - 1986

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N2 - The completely generalized program that calculates the mutual coupling ratios of two loops over an n-layer earth model in four coil configuration (horizontal coplanar, perpendicular, vertical coplanar and ver-tical coaxial) systems has been modified to take advantage of a digital linear filter method. This method rapidly evaluates the many Hankel transform integrals encountered in layered earth electromagnetic modelling. The program is valid for any frequency, coil separation or coil altitude and any resistivities, dielectric constants and relative magnetic permeabilities of the layers. Applying this rapid and thus inexpensive method it has also been possible to develop a computer program that calculates the time domain electromagnetic response of a multilayered earth for the Crone PEM dipole system. The conversion into the time domain involves Fourier series summation of the matched complex mutual coupling ratios of the layered earth models computed by the digital linear filter method.

AB - The completely generalized program that calculates the mutual coupling ratios of two loops over an n-layer earth model in four coil configuration (horizontal coplanar, perpendicular, vertical coplanar and ver-tical coaxial) systems has been modified to take advantage of a digital linear filter method. This method rapidly evaluates the many Hankel transform integrals encountered in layered earth electromagnetic modelling. The program is valid for any frequency, coil separation or coil altitude and any resistivities, dielectric constants and relative magnetic permeabilities of the layers. Applying this rapid and thus inexpensive method it has also been possible to develop a computer program that calculates the time domain electromagnetic response of a multilayered earth for the Crone PEM dipole system. The conversion into the time domain involves Fourier series summation of the matched complex mutual coupling ratios of the layered earth models computed by the digital linear filter method.

KW - geophysics

KW - environmental surveys

KW - municipal engineering

KW - landfills

KW - leachate

KW - monitoring

M3 - Report

SN - 951-38-2630-9

T3 - Tiedotteita / Valtion teknillinen tutkimuskeskus

BT - Calculation of electromagnetic field components in frequency and time domain using dipole source excitation and layered earth model

PB - VTT Technical Research Centre of Finland

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ER -

Korkealaakso J, Saksa P. Calculation of electromagnetic field components in frequency and time domain using dipole source excitation and layered earth model: Documentation of software development. Espoo: VTT Technical Research Centre of Finland, 1986. 50 p. (Valtion teknillinen tutkimuskeskus. Tiedotteita; No. 597).