Volume 44 Issue 4
Aug.  2022
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Zhang B,Wu G C,Li Q Y,Yang L Y,Shan J Z. 2022. Forward modeling method of seismic multiple scattered waves. Acta Seismologica Sinica,44(4):608−618 doi: 10.11939/jass.20210053
Citation: Zhang B,Wu G C,Li Q Y,Yang L Y,Shan J Z. 2022. Forward modeling method of seismic multiple scattered waves. Acta Seismologica Sinica44(4):608−618 doi: 10.11939/jass.20210053

Forward modeling method of seismic multiple scattered waves

doi: 10.11939/jass.20210053
  • Received Date: 2021-04-18
  • Rev Recd Date: 2021-08-14
  • Available Online: 2022-07-04
  • Publish Date: 2022-08-16
  • When seismic waves pass through the underground scatterers, multi-order scattered waves will be generated, and the analysis of their seismic response characteristics is beneficial to infer the distribution and properties of the scatterers. Based on the two-dimensional scalar wave motion equation, combined with the seismic scattering theory and the Born approximation theory, the multi-order scattering wave equation is deduced. The numerical simulation of the two-point scatterer model and the complex scatterer model is carried out by using the high-order finite difference method, and the propagation law and wavefield characteristics of the multi-order scattered wave are analyzed. And then the single track records of multi-order scattering and each scattering are extracted and compared with the reference single track records, which verifies the accuracy of the scattering wave equation derived in this paper.

     

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