Lian-Jie Huang

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Observations of seismic waves from earthquakes at depths between 100 and 200 km beneath Japan show that the initial portion of the S-wave arrival has greater duration than can be accounted for by earthquake source-time duration. The observed long duration of S waves has been explained as being caused by multiple forward scattering around the ray path(More)
SUMMARY The distortion and limited resolution of the image are serious problems of single-frequency diffraction tomography. Mul-tlfrequency methods, such as the multifrequency backscattering tomography, can improve the resolution and image quality significantly. In this work, we extend the multifrequency backacat-tering tomography to the case of vertically(More)
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