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pro vyhledávání: '"Qiqiang Yang"'
Autor:
Qiqiang Yang, Xuemin Zi
Publikováno v:
2022 3rd International Conference on Computer Vision, Image and Deep Learning & International Conference on Computer Engineering and Applications (CVIDL & ICCEA).
Autor:
Xuemin Zi, Qiqiang Yang
Publikováno v:
Journal of Physics: Conference Series. 2026:012012
Autor:
Qiqiang Yang
Publikováno v:
Proceedings of the 2016 6th International Conference on Applied Science, Engineering and Technology.
From the modeling operator, we derive its adjoint operator which is used to migrate 3-D poststack data. It forms a theoretical foundation for the reverse-time migration. The method would be helpful to get a new way to improve the result of convention
Autor:
Qiqiang Yang
Publikováno v:
Proceedings of the 2016 6th International Conference on Applied Science, Engineering and Technology.
Numerical solutions of the wave equation have greatly aided geophysicists in both forward modeling and migration of seismic wave fields in complicated geologic media, and they promise to be invaluable in solving the full inverse problem. This paper c
Autor:
Qiqiang Yang
Publikováno v:
Proceedings of the 2016 6th International Conference on Applied Science, Engineering and Technology.
Reverse time migration allows steep dip imaging, any lateral velocity variation and correct amplitude and phase information at the same time. However, it is time consuming and requires large hard disk memories. To shorten the running time of prestack
Autor:
Qiqiang Yang
Publikováno v:
Proceedings of the First International Conference on Information Sciences, Machinery, Materials and Energy.
A variable large-step prestack depth extrapolation migration method is presented. In the extrapolation process adopting a large depth step can keep efficiency but at a cost of low accuracy. However, if the depth step is allowed to vary we can use a r
Autor:
Qiqiang Yang
Publikováno v:
Proceedings of the First International Conference on Information Sciences, Machinery, Materials and Energy.
Numerical methods using the linear shot sources are described for the simulation of 3-D wave phenomena with application to the modeling of seismic data. In the method, time stepping is performed with a second-order differencing operator. The use of l
Autor:
Qiqiang, Yang
Publikováno v:
Procedia Environmental Sciences; Jan2012, Vol. 12 Issue Part B, p1116-1121, 6p