Acoustic Reverse-time Migration using Optimal Staggered-grid Finite-difference Operator Based on Least Squares Article Swipe
Hongyong Yan
,
Yang Lei
,
Hong Liu
·
YOU?
·
· 2015
· Open Access
·
· DOI: https://doi.org/10.2478/s11600-014-0259-9
YOU?
·
· 2015
· Open Access
·
· DOI: https://doi.org/10.2478/s11600-014-0259-9
Reverse-time migration (RTM) directly solves the two-way wave equation for wavefield propagation; therefore, how to solve the wave equation accurately and quickly is very important for RTM. The conventional staggered-grid finite-difference (SFD) operators are usually based on the Taylor-series expansion theory. If they are used to solve wave equation on a larger frequency content, a strong dispersion will occur, which directly affects the seismic image quality. In this paper, we propose an optimal SFD operator based on least squares to solve acoustic wave equation for prestack RTM, and obtain a new antidispersion RTM algorithm that can use short spatial difference operators. The synthetic and real data tests demonstrate that the least squares SFD (LSSFD) operator can mitigate the numerical dispersion, and the acoustic RTM using the LSSFD operator can effectively improve image quality comparing with that using the Taylor-series expansion SFD (TESFD) operator. Moreover, the LSSFD method can adopt a shorter spatial difference operator to reduce the computing cost.
Related Topics
Concepts
Operator (biology)
Taylor series
Seismic migration
Grid
Acoustic wave equation
Wave equation
Least-squares function approximation
Finite difference
Algorithm
Dispersion (optics)
Series (stratigraphy)
Computer science
Mathematical optimization
Mathematics
Mathematical analysis
Acoustic wave
Acoustics
Geometry
Geology
Optics
Physics
Transcription factor
Chemistry
Statistics
Repressor
Gene
Biochemistry
Estimator
Seismology
Paleontology
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.2478/s11600-014-0259-9
- https://link.springer.com/content/pdf/10.2478/s11600-014-0259-9.pdf
- OA Status
- hybrid
- Cited By
- 9
- References
- 33
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W2062044151
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
-
https://openalex.org/W2062044151Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.2478/s11600-014-0259-9Digital Object Identifier
- Title
-
Acoustic Reverse-time Migration using Optimal Staggered-grid Finite-difference Operator Based on Least SquaresWork title
- Type
-
articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2015Year of publication
- Publication date
-
2015-01-05Full publication date if available
- Authors
-
Hongyong Yan, Yang Lei, Hong LiuList of authors in order
- Landing page
-
https://doi.org/10.2478/s11600-014-0259-9Publisher landing page
- PDF URL
-
https://link.springer.com/content/pdf/10.2478/s11600-014-0259-9.pdfDirect link to full text PDF
- Open access
-
YesWhether a free full text is available
- OA status
-
hybridOpen access status per OpenAlex
- OA URL
-
https://link.springer.com/content/pdf/10.2478/s11600-014-0259-9.pdfDirect OA link when available
- Concepts
-
Operator (biology), Taylor series, Seismic migration, Grid, Acoustic wave equation, Wave equation, Least-squares function approximation, Finite difference, Algorithm, Dispersion (optics), Series (stratigraphy), Computer science, Mathematical optimization, Mathematics, Mathematical analysis, Acoustic wave, Acoustics, Geometry, Geology, Optics, Physics, Transcription factor, Chemistry, Statistics, Repressor, Gene, Biochemistry, Estimator, Seismology, PaleontologyTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
9Total citation count in OpenAlex
- Citations by year (recent)
-
2025: 1, 2024: 1, 2023: 1, 2022: 2, 2020: 1Per-year citation counts (last 5 years)
- References (count)
-
33Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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