Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Zai-Tian Ma"'
Publikováno v:
Chinese Journal of Geophysics. 55:76-83
In P-SV seismic data processing, there are some aspects different from conventional P-P seismic data processing, such as S-wave static correction, CCP binning, P-SV velocity analysis and migration. Among them, the most difficult procedure is S-wave s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac2bc0b9dd2734ace00cac7108331161
https://doi.org/10.1002/cjg2.1702
https://doi.org/10.1002/cjg2.1702
Publikováno v:
Chinese Journal of Geophysics. 52:461-470
To overcome some of the shortages of conventional Kirchhoff presatck time migration technique and to provide more powerful supports for amplitude versus incidence-angle and azimuth (AVA/AVAZ) analysis, we develop a 3-D angle-domain imaging approach b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81a030229cc5f784a4bc5a3061700313
https://doi.org/10.1002/cjg2.1366
https://doi.org/10.1002/cjg2.1366
Publikováno v:
Chinese Journal of Geophysics. 50:729-736
Due to the effects of complicated subsurface structures and seismic acquisition system, the seismic wave illumination to some subsurface targets may be inhomogeneous, so the seismic acquisition system can not effectively acquire the reflected informa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a8ab02a475241ee293d64818e6ad8e2
https://doi.org/10.1002/cjg2.1087
https://doi.org/10.1002/cjg2.1087
Publikováno v:
Chinese Journal of Geophysics. 50:241-249
By transforming the classical double-square-root (DSR) one-way wave equation from depth domain to two-way vertical traveltime (τ) domain, we derive a one-way DSR wave propagator which can be applied to implement the imaging concept of “survey sink
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5af511b7178a6d237e3e49203c28f19
https://doi.org/10.1002/cjg2.1029
https://doi.org/10.1002/cjg2.1029
Autor:
Zai‐Tian Ma, Sheng‐Chang Chen
Publikováno v:
Chinese Journal of Geophysics. 49:1290-1297
Different from the scattering theory used in the derivation of conventional generalized screen propagator, in this paper, a high order formula of generalized screen propagator for one-way wave equation is proposed by using the asymptotic expansion of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99288691e5a88cfb1f8d6e492d519ce8
https://doi.org/10.1002/cjg2.952
https://doi.org/10.1002/cjg2.952
Autor:
Sheng‐Chang Chen, Zai‐Tian Ma
Publikováno v:
Chinese Journal of Geophysics. 49:1033-1039
Based on the linear stacking principle of seismic wavefield, a general approach to the linear stacking of seismic common shot gathers and their sources is presented. It is called generalized seismic data synthesis. By using this method, different kin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f2d4e5eda3985510a0c4ed5933fcdf0
https://doi.org/10.1002/cjg2.925
https://doi.org/10.1002/cjg2.925
Publikováno v:
Chinese Journal of Geophysics. 49:786-794
The CRS-MZO method is an innovative CRS stack method to simulate zero-offset (ZO) section by the outplanat. After a detailed theoretical introduction in paper I, the CRS-MZO method is applied to real data in this paper. The ZO section simulated by th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c75c7758dc4c3d6076a1a4670088ca4
https://doi.org/10.1002/cjg2.894
https://doi.org/10.1002/cjg2.894
Publikováno v:
Chinese Journal of Geophysics. 48:1226-1233
Common reflection surface (CRS) stack is a macro-model independent zero-offset (ZO) imaging method. The traditional CRS stack method is implemented by determination of a set of wavefield attributes by which the CRS operator is constructed, wherein th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e85b03af28c54730d84e571ad9097e7
https://doi.org/10.1002/cjg2.768
https://doi.org/10.1002/cjg2.768
Publikováno v:
Chinese Journal of Geophysics. 48:441-447
After reviewing the basic principle of the migration methods based on the double square root (DSR) equation, we introduce a fast algorithm of angle domain imaging to facilitate migration velocity analysis (MVA). Then we discuss two approaches to migr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66470683601f6540f432273bd87863f0
https://doi.org/10.1002/cjg2.672
https://doi.org/10.1002/cjg2.672
Publikováno v:
Acta Seismologica Sinica. 17:707-714
To the most of velocity fields, the traveltimes of the first break that seismic waves propagate along rays can be computed on a 2-D or 3-D numerical grid by finite-difference extrapolation. Under ensuring accuracy, to improve calculating efficiency a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::106585bb401273b0ec622ea8842d8ad7
https://doi.org/10.1007/s11589-004-0010-8
https://doi.org/10.1007/s11589-004-0010-8