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The Extraction of TEM Response from Pseudo Random Binary Sequence Source EM Data

  • Hai Li
  • Guoqiang Xue
  • Pan Zhao
  • Huasen Zhong
  • Nannan Zhou
Chapter
Part of the Springer Geophysics book series (SPRINGERGEOPHYS)

Abstract

This paper presents a method for converting the full waveform electromagnetic response excited by the pseudo-random binary sequences (PRBS) into subsurface resistivity cross section, based on the recovery of the transient electromagnetic diffusion field. The impulse response of the earth is extracted from the full waveform data efficiently using the Wiener-Hopf equation. Then, the backward accumulation is used to obtain the step off response from the extracted earth impulse response. An OCCAM inversion routine, which incorporates the band limitation of the derived transient, is adopted to produce the geoelectric models. Finally, the method was applied to the experimental field data set, and the consistency between the recovered models and the geological condition verifies the validity of this method.

Keywords

TEM response Pseudo random Binary sequence Source EM data 

Notes

Acknowledgments

This research was supported by R&D of Key Instruments and Technologies for Deep Resources Prospecting (the National R&D Projects for Key Scientific Instruments), Grant No. ZDYZ2012-1-05-04.

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Copyright information

© Springer Nature Singapore Pte Ltd. 2017

Authors and Affiliations

  • Hai Li
    • 2
    • 1
  • Guoqiang Xue
    • 1
  • Pan Zhao
    • 1
    • 2
  • Huasen Zhong
    • 1
    • 2
  • Nannan Zhou
    • 1
  1. 1.Key Laboratory of Mineral Resources, Institute of Geology and GeophysicsChinese Academy of SciencesBeijingChina
  2. 2.University of Chinese Academy of SciencesBeijingChina

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