Controlled-source electromagnetic data processing based on gray system theory and robust estimation
Sign Up to like & getrecommendations! Published in 2017 at "Applied Geophysics"
DOI: 10.1007/s11770-017-0646-5
Abstract: We propose a novel method that combines gray system theory and robust M-estimation method to suppress the interference in controlled-source electromagnetic data. We estimate the standard deviation of the data using a gray model because… read more here.
Keywords: robust estimation; gray system; method; source electromagnetic ... See more keywords
Comparison between staggered grid finite–volume and edge–based finite–element modelling of geophysical electromagnetic data on unstructured grids
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Applied Geophysics"
DOI: 10.1016/j.jappgeo.2017.01.016
Abstract: Abstract This study compares two finite–element (FE) and three finite–volume (FV) schemes which use unstructured tetrahedral grids for the modelling of electromagnetic (EM) data. All these schemes belong to a group of differential methods where… read more here.
Keywords: finite element; edge based; finite volume; electromagnetic data ... See more keywords
Electromagnetic data libraries: recent evolutions and new perspectives
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Instrumentation"
DOI: 10.1088/1748-0221/15/03/c03032
Abstract: This paper summarizes the current status of the electromagnetic data libraries, reviews recent experimental validation results, highlights open issues and introduces new perspectives for the future of these data libraries taking shape in the context… read more here.
Keywords: new perspectives; libraries recent; electromagnetic data; evolutions new ... See more keywords
SEMI Net: Seismic-Electromagnetic Joint Inversion Network
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Transactions on Geoscience and Remote Sensing"
DOI: 10.1109/tgrs.2024.3365818
Abstract: Inversion of seismic data, particularly full waveform inversion (FWI), allows for high-resolution subsurface velocity estimation. However, the inversion of subsurface velocities using only seismic data typically involves severe nonuniqueness. Electromagnetic exploration, due to its broad… read more here.
Keywords: electromagnetic data; seismic electromagnetic; semi net; inversion ... See more keywords
Transient electromagnetic data denoising based on cluster analysis and locally weighted linear regression
Sign Up to like & getrecommendations! Published in 2024 at "Geophysical Prospecting"
DOI: 10.1111/1365-2478.13625
Abstract: In transient electromagnetic surveys, the collected data inevitably contain noise originating from both natural and cultural sources. This noise has the potential to mask transient electromagnetic responses linked to geological features, thereby posing challenges in… read more here.
Keywords: electromagnetic data; locally weighted; weighted linear; linear regression ... See more keywords
Deep Neural Network-Based Interpretation of Frequency-Domain Electromagnetic Data: Dual Output of 2D Resistivity Models and Electromagnetic Data
Sign Up to like & getrecommendations! Published in 2025 at "GEOPHYSICS"
DOI: 10.1190/geo2024-0446.1
Abstract: The assessment of man-made structures such as dams and embankments is vital for protecting both property and human life. Consequently, regular and accurate geophysical monitoring of these infrastructures is widely practiced. However, the iterative numerical… read more here.
Keywords: electromagnetic data; based interpretation; domain electromagnetic; frequency domain ... See more keywords
Three-Dimensional Anisotropic Inversions for Time-Domain Airborne Electromagnetic Data
Sign Up to like & getrecommendations! Published in 2021 at "Minerals"
DOI: 10.3390/min11020218
Abstract: Rocks and ores in nature usually appear macro-anisotropic, especially in sedimentary areas with strong layering. This anisotropy will lead to false interpretation of electromagnetic (EM) data when inverted under the assumption of an isotropic earth.… read more here.
Keywords: inversion; anisotropic; domain airborne; time domain ... See more keywords