Electromagnetic Marchenko imaging in 1D

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1 Citation (Scopus)

Abstract

We present a one-dimensional lossless scheme to compute an image of a dissipative medium from two single-sided reflection responses. One reflection response is measured at or above the top reflector of a dissipative medium and the other reflection response is computed as if measured at or above the top reflector of a medium with negative dissipation which we call the effectual medium. These two reflection responses together can be used to construct the approximate reflection data of the corresponding lossless medium by multiplying and taking the square root in time domain. The corresponding lossless medium has the same reflectors as the dissipative medium. Then the constructed reflection data can be used to compute the focusing wavefield which focuses at the chosen location in subsurface of the dissipative medium. From the focusing function and constructed reflection response the Green’s function for a virtual receiver can be obtained. Because the up- and downgoing parts of the Green’s function are retrieved separately, these are used to compute the image. We show with an example that the method works well for a sample in a synthesized waveguide that could be used for measurements in a laboratory.
Original languageEnglish
Title of host publicationProceedings of the 16th International Conference on Ground-Penetrating Radar
Subtitle of host publicationHong Kong, China
EditorsCharles Sicking, John Ferguson
PublisherIEEE
Pages1-4
Number of pages4
ISBN (Print)978-1-5090-5181-6
DOIs
Publication statusPublished - 2016
Event16th International Conference on Ground-Penetrating Radar - Polytechnic university, Hong Kong, China
Duration: 13 Jun 201616 Jun 2016

Publication series

NameSEG Technical Program Expanded Abstracts
PublisherSEG
Volume2016
ISSN (Electronic)1949-4645

Conference

Conference16th International Conference on Ground-Penetrating Radar
Abbreviated titleGPR 2016
CountryChina
CityHong Kong
Period13/06/1616/06/16

Keywords

  • virtual source
  • virtual receiver
  • interferometry
  • autofocusing
  • 3d GPR

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