Attenuating crosstalk noise of simultaneous-source least-squares reverse time migration with GPU-based excitation amplitude imaging condition

Q Zhang, W Mao, Y Chen - IEEE Transactions on Geoscience …, 2018 - ieeexplore.ieee.org
Least-squares reverse time migration (LSRTM) can provide higher quality images than
conventional reverse time migration, which is helpful to image simultaneous-source data …

Efficient extended least-squares reverse time migration based on an excitation amplitude imaging condition

S Kim, SG Kang, Y Choi, W Chung - Geophysics, 2024 - library.seg.org
In least-squares reverse time migration (LSRTM), which is typically an overdetermined linear
inverse problem, the kinematic traveltime error from an inaccurate migration velocity leads to …

Angle-domain inverse scattering migration/inversion in isotropic media

W Li, W Mao, X Li, W Ouyang, Q Liang - Journal of Applied Geophysics, 2018 - Elsevier
The classical seismic asymptotic inversion can be transformed into a problem of inversion of
generalized Radon transform (GRT). In such methods, the combined parameters are linearly …

[HTML][HTML] 基于解耦传播的波场分解方法在VTI 介质弹性波逆时偏移中的应用

周进举, 王德利, 李博文, 李强, 王睿 - 2018 - html.rhhz.net
由于弹性波逆时偏移更符合实际情况, 而且转换波的成像结果有更高的分辨率,
因此弹性波逆时偏移越来越受到重视. 然而, 弹性波逆时偏移需要多波多分量数据 …

Least‐squares reverse time migration using the most energetic source wavefields based on excitation amplitude imaging condition

S Kim, YS Kim, W Chung - Geophysical Prospecting, 2023 - Wiley Online Library
Least‐squares reverse time migration, a linearized inversion problem, can provide high‐
quality migration image by minimizing the misfit function, which is defined by predicted and …

An efficient low-frequency artifact suppression method at excitation time for excitation amplitude imaging condition

R Wang, D Wang, B Hu, W Zhang, J Zhou, B Li - Acta Geophysica, 2023 - Springer
The excitation amplitude imaging condition (EAIC) is a high-resolution, computationally
efficient, and low-storage imaging condition in reverse time migration (RTM). However …

Prestack elastic RTM for VTI media using vector wavefield decomposition and vector imaging conditions

J Zhou, D Wang, R Wang, H Yang - Exploration Geophysics, 2019 - Taylor & Francis
To date, studies of elastic reverse time migration (RTM) have undergone much
improvement, but mainly focus on isotropic media. Because anisotropic media is …

3D P‐wave traveltime computation in transversely isotropic media using layer‐by‐layer wavefront marching

J Hu, J Cao, H Wang, X Wang, R Tian - Geophysical Prospecting, 2018 - earthdoc.org
Subsurface rocks (eg shale) may induce seismic anisotropy, such as transverse isotropy.
Traveltime computation is an essential component of depth imaging and tomography in …

A stable Q compensated reverse time migration method based on excitation amplitude imaging condition

Q Li, Z Li, H Zhou, X Zhao, S Zu - SEG International Exposition and …, 2017 - onepetro.org
The stability and efficiency, especially the stability, are generally concerned issues in
compensated reverse time migration (-RTM). The instability occurs due to the exponential …

Reconstructing the primaries of PP and PS waves by elastic Marchenko method

J Zhou, W Zhang, T Lei, D Wang, J Li - SEG International Exposition …, 2019 - onepetro.org
Multiples always introduce artifacts in reverse time migration (RTM). Especially for elastic
RTM, the PP and PS images may contaminated by transmitted PS (or SP) wave. In this …