Standard

Effect of transmitter current waveform on transient electromagnetic responses. / Antonov, E. Yu; Mogilatov, V. S.; Epov, M. I.

In: Russian Geology and Geophysics, Vol. 60, No. 4, 04.2019, p. 492-499.

Research output: Contribution to journal › Article › peer-review

Harvard

Antonov, EY, Mogilatov, VS & Epov, MI 2019, 'Effect of transmitter current waveform on transient electromagnetic responses', Russian Geology and Geophysics, vol. 60, no. 4, pp. 492-499. https://doi.org/10.15372/RGG2019027

APA

Antonov, E. Y., Mogilatov, V. S., & Epov, M. I. (2019). Effect of transmitter current waveform on transient electromagnetic responses. Russian Geology and Geophysics, 60(4), 492-499. https://doi.org/10.15372/RGG2019027

Vancouver

Antonov EY, Mogilatov VS, Epov MI. Effect of transmitter current waveform on transient electromagnetic responses. Russian Geology and Geophysics. 2019 Apr;60(4):492-499. doi: 10.15372/RGG2019027

Author

Antonov, E. Yu ; Mogilatov, V. S. ; Epov, M. I. / Effect of transmitter current waveform on transient electromagnetic responses. In: Russian Geology and Geophysics. 2019 ; Vol. 60, No. 4. pp. 492-499.

BibTeX

@article{ff311e37c18846bfa0321d3d213f7e7e,
title = "Effect of transmitter current waveform on transient electromagnetic responses",
abstract = "The theoretical studies and methodological guidelines for transient electromagnetic (TEM) surveys assume an ideal step turn-off of transmitter current. Yet, the pulse duration in the survey practice is nonzero: It depends on penetration depth and has economic or logistic limitations. The turn-off time, which cannot be too short for technical reasons, affects especially the late-time transient responses, while the transmitter waveform is more essential at early times. Therefore, forward calculations of voltage decay should take into account the real parameters of the turn-off ramp. Earlier it was suggested to use transmitter current of a special waveform to improve the resolution of TEM soundings, e.g., in the designed and successfully tested compensation method. In this study the problem is treated from a broader perspective, in terms of TE and TM polarization of the TEM field. The two components are excited by different sources and behave in different ways in responses of a two-layer earth with a resistive lower layer to transmitter current of different waveforms.",
keywords = "Resistivity survey, TE field, TEM soundings, TM field, Transmitter waveform, resistivity survey, transmitter waveform",
author = "Antonov, {E. Yu} and Mogilatov, {V. S.} and Epov, {M. I.}",
year = "2019",
month = apr,
doi = "10.15372/RGG2019027",
language = "English",
volume = "60",
pages = "492--499",
journal = "Russian Geology and Geophysics",
issn = "1068-7971",
publisher = "Elsevier Science B.V.",
number = "4",

}

RIS

TY - JOUR

T1 - Effect of transmitter current waveform on transient electromagnetic responses

AU - Antonov, E. Yu

AU - Mogilatov, V. S.

AU - Epov, M. I.

PY - 2019/4

Y1 - 2019/4

N2 - The theoretical studies and methodological guidelines for transient electromagnetic (TEM) surveys assume an ideal step turn-off of transmitter current. Yet, the pulse duration in the survey practice is nonzero: It depends on penetration depth and has economic or logistic limitations. The turn-off time, which cannot be too short for technical reasons, affects especially the late-time transient responses, while the transmitter waveform is more essential at early times. Therefore, forward calculations of voltage decay should take into account the real parameters of the turn-off ramp. Earlier it was suggested to use transmitter current of a special waveform to improve the resolution of TEM soundings, e.g., in the designed and successfully tested compensation method. In this study the problem is treated from a broader perspective, in terms of TE and TM polarization of the TEM field. The two components are excited by different sources and behave in different ways in responses of a two-layer earth with a resistive lower layer to transmitter current of different waveforms.

AB - The theoretical studies and methodological guidelines for transient electromagnetic (TEM) surveys assume an ideal step turn-off of transmitter current. Yet, the pulse duration in the survey practice is nonzero: It depends on penetration depth and has economic or logistic limitations. The turn-off time, which cannot be too short for technical reasons, affects especially the late-time transient responses, while the transmitter waveform is more essential at early times. Therefore, forward calculations of voltage decay should take into account the real parameters of the turn-off ramp. Earlier it was suggested to use transmitter current of a special waveform to improve the resolution of TEM soundings, e.g., in the designed and successfully tested compensation method. In this study the problem is treated from a broader perspective, in terms of TE and TM polarization of the TEM field. The two components are excited by different sources and behave in different ways in responses of a two-layer earth with a resistive lower layer to transmitter current of different waveforms.

KW - Resistivity survey

KW - TE field

KW - TEM soundings

KW - TM field

KW - Transmitter waveform

KW - resistivity survey

KW - transmitter waveform

UR - http://www.scopus.com/inward/record.url?scp=85064994859&partnerID=8YFLogxK

U2 - 10.15372/RGG2019027

DO - 10.15372/RGG2019027

M3 - Article

AN - SCOPUS:85064994859

VL - 60

SP - 492

EP - 499

JO - Russian Geology and Geophysics

JF - Russian Geology and Geophysics

SN - 1068-7971

IS - 4

ER -

ID: 20050654