Detection of near-surface heterogeneities at archaeological sites using seismic diffractions
Jianhuan Liu (TU Delft - Applied Geophysics and Petrophysics)
Q. Bourgeois (Universiteit Leiden)
Ranajit Ghose (TU Delft - Applied Geophysics and Petrophysics)
Deyan Draganov (TU Delft - Applied Geophysics and Petrophysics)
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Abstract
We develop a new approach to locate very shallow subsurface objects using seismic diffractions of low signal-tonoise ratio. In our approach we use the diffraction arrivals recorded from the subsurface objects. To image the objects, we apply spatial instantaneous-phase-coherency summation along diffraction hyperbolae. We demonstrate the performance of our method using synthetic and field data.