Moment Estimation from Time Domain Electromagnetic Data

IF 2.2 4区 地球科学 Q2 GEOCHEMISTRY & GEOPHYSICS Minerals Pub Date : 2024-08-30 DOI:10.3390/min14090888
Marc A. Vallée, Mouhamed Moussaoui
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Abstract

Moment representations have been proposed to facilitate the interpretation of geophysical time domain electromagnetic responses. We present a new methodology for estimating these moments from field data for different system waveforms when on-time and off-time measurements are available. Quadrature impulse response moments are estimated by a recursive relation involving moments of the input waveform and moments of the observed response. After adapting this method to time domain electromagnetic applications—in particular, MEGATEM and AeroTEM (AirTEM) airborne electromagnetic systems—we present the results from applying this method on synthetic and real data collected over the Reid–Mahaffy test site in northern Ontario, Canada.
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从时域电磁数据中估计力矩
为了便于解释地球物理时域电磁响应,人们提出了矩表示法。我们提出了一种新的方法,用于在有实时和非实时测量数据的情况下,根据不同系统波形的现场数据估算这些矩。正交脉冲响应矩是通过涉及输入波形矩和观测响应矩的递推关系来估算的。在将这种方法应用于时域电磁应用--特别是 MEGATEM 和 AeroTEM(AirTEM)机载电磁系统--之后,我们介绍了将这种方法应用于在加拿大安大略省北部 Reid-Mahaffy 试验场采集的合成数据和真实数据的结果。
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来源期刊
Minerals
Minerals MINERALOGY-MINING & MINERAL PROCESSING
CiteScore
4.10
自引率
20.00%
发文量
1351
审稿时长
19.04 days
期刊介绍: Minerals (ISSN 2075-163X) is an international open access journal that covers the broad field of mineralogy, economic mineral resources, mineral exploration, innovative mining techniques and advances in mineral processing. It publishes reviews, regular research papers and short notes. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.
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