Iterative deblending of simultaneous-source seismic data using seislet-domain sha** regularization
We used a novel iterative estimation scheme for separation of blended seismic data from
simultaneous sources. The scheme is based on an augmented estimation problem that can …
simultaneous sources. The scheme is based on an augmented estimation problem that can …
-compensated least-squares reverse time migration using low-rank one-step wave extrapolation
Attenuation of seismic waves needs to be taken into account to improve the accuracy of
seismic imaging. In viscoacoustic media, reverse time migration (RTM) can be performed …
seismic imaging. In viscoacoustic media, reverse time migration (RTM) can be performed …
Separation of simultaneous sources using a structural-oriented median filter in the flattened dimension
S Gan, S Wang, Y Chen, X Chen, K **_regularization/links/5b7670dda6fdcc87df81829d/Irregularly-sampled-multi-source-data-deblending-based-on-sha**-regularization.pdf" data-clk="hl=en&sa=T&oi=gga&ct=gga&cd=3&d=8144012650492321758&ei=HGSlZ-D-MIC96rQP5oz8kAU" data-clk-atid="3t_hVltYBXEJ" target="_blank">[PDF] researchgate.net
A periodically varying code for improving deblending of simultaneous sources in marine acquisition
We have designed a periodically varying code that can avoid the problem of the local
coherency and make the interference distribute uniformly in a given range; hence, it was …
coherency and make the interference distribute uniformly in a given range; hence, it was …
Attenuation compensation in anisotropic least-squares reverse time migration
Anisotropic and attenuating properties of subsurface media cause amplitude loss and
waveform distortion in seismic wave propagation, resulting in negative influence on seismic …
waveform distortion in seismic wave propagation, resulting in negative influence on seismic …
Velocity analysis of simultaneous-source data using high-resolution semblance—Co** with the strong noise
Direct imaging of simultaneous-source (or blended) data, without the need of deblending,
requires a precise subsurface velocity model. In this paper, we focus on the velocity analysis …
requires a precise subsurface velocity model. In this paper, we focus on the velocity analysis …
Accelerating extended least-squares migration with weighted conjugate gradient iteration
J Hou, WW Symes - Geophysics, 2016 - library.seg.org
Least-squares migration (LSM) iteratively achieves a mean-square best fit to seismic
reflection data, provided that a kinematically accurate velocity model is available. The …
reflection data, provided that a kinematically accurate velocity model is available. The …
Seismic imaging of simultaneous-source data using constrained least-squares reverse time migration
Simultaneous-source acquisition can help obtain better-sampled seismic data with a
tremendously faster efficiency. However, the interference caused between simultaneous …
tremendously faster efficiency. However, the interference caused between simultaneous …
Least-squares RTM with L1 norm regularisation
Reverse time migration (RTM), for imaging complex Earth models, is a reversal procedure of
the forward modelling of seismic wavefields, and hence can be formulated as an inverse …
the forward modelling of seismic wavefields, and hence can be formulated as an inverse …
Iterative deblending with multiple constraints based on sha** regularization
Y Chen - IEEE Geoscience and Remote Sensing Letters, 2015 - ieeexplore.ieee.org
It has been previously shown that blended simultaneous-source data can be successfully
separated using an iterative seislet thresholding algorithm. In this letter, I combine iterative …
separated using an iterative seislet thresholding algorithm. In this letter, I combine iterative …