Anti-Aliasing filter for reverse-time migration

Ge Zhan; Gerard T. Schuster

doi:10.3997/2214-4609.20148621

Anti-Aliasing filter for reverse-time migration

Ge Zhan, Gerard T. Schuster

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We develop an anti-aliasing filter for reverse-time migration (RTM). It is similar to the traditional anti-aliasing filter used for Kirchhoff migration in that it low-pass filters the migration operator so that the dominant wavelength in the operator is greater than two times the trace sampling interval, except it is applied to both primary and multiple reflection events. Instead of applying this filter to the data in the traditional RTM operation, we apply the anti-aliasing filter to the generalized diffraction-stack migration operator. This gives the same migration image as computed by anti-aliased RTM. Download

Original language	English (US)
Title of host publication	74th EAGE Conference and Exhibition incorporating EUROPEC 2012
Publisher	EAGE Publications
ISBN (Print)	9781629937908
DOIs	https://doi.org/10.3997/2214-4609.20148621
State	Published - Dec 3 2014

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KAUST Repository Item: Exported on 2020-10-01

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title = "Anti-Aliasing filter for reverse-time migration",

abstract = "We develop an anti-aliasing filter for reverse-time migration (RTM). It is similar to the traditional anti-aliasing filter used for Kirchhoff migration in that it low-pass filters the migration operator so that the dominant wavelength in the operator is greater than two times the trace sampling interval, except it is applied to both primary and multiple reflection events. Instead of applying this filter to the data in the traditional RTM operation, we apply the anti-aliasing filter to the generalized diffraction-stack migration operator. This gives the same migration image as computed by anti-aliased RTM. Download",

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AU - Zhan, Ge

AU - Schuster, Gerard T.

N1 - KAUST Repository Item: Exported on 2020-10-01

PY - 2014/12/3

Y1 - 2014/12/3

N2 - We develop an anti-aliasing filter for reverse-time migration (RTM). It is similar to the traditional anti-aliasing filter used for Kirchhoff migration in that it low-pass filters the migration operator so that the dominant wavelength in the operator is greater than two times the trace sampling interval, except it is applied to both primary and multiple reflection events. Instead of applying this filter to the data in the traditional RTM operation, we apply the anti-aliasing filter to the generalized diffraction-stack migration operator. This gives the same migration image as computed by anti-aliased RTM. Download

AB - We develop an anti-aliasing filter for reverse-time migration (RTM). It is similar to the traditional anti-aliasing filter used for Kirchhoff migration in that it low-pass filters the migration operator so that the dominant wavelength in the operator is greater than two times the trace sampling interval, except it is applied to both primary and multiple reflection events. Instead of applying this filter to the data in the traditional RTM operation, we apply the anti-aliasing filter to the generalized diffraction-stack migration operator. This gives the same migration image as computed by anti-aliased RTM. Download

UR - http://hdl.handle.net/10754/575756

UR - http://www.earthdoc.org/publication/publicationdetails/?publication=59518

U2 - 10.3997/2214-4609.20148621

DO - 10.3997/2214-4609.20148621

M3 - Conference contribution

SN - 9781629937908

BT - 74th EAGE Conference and Exhibition incorporating EUROPEC 2012

PB - EAGE Publications

ER -

Anti-Aliasing filter for reverse-time migration

Abstract

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