Print Email Facebook Twitter Locating cavities using ghost scattered waves in a scale-model experiment Title Locating cavities using ghost scattered waves in a scale-model experiment Author Harmankaya, U. Kaslilar, A. Verstraeten, B. Creten, S. Glorieux, C. Wapenaar, C.P.A. Draganov, D.S. Faculty Civil Engineering and Geosciences Department Geoscience & Engineering Date 2014-06-19 Abstract The investigation and detection of near-surface structures (cavities, caves, tunnels, mineshafts, buried objects, archeological ruins, water reservoir, etc.) is important to mitigate geo- and environmental hazards. We use a method inspired by seismic interferometry to estimate the location of a cavity in a scaled ultrasonic experiment, representative for geophysical field problems. We use only one source at the surface and retrieve ghost scattered waves by evaluating the correlation of scattered waves at different receiver locations. As an exploitation of the ghost arrival information, the ghost travel times are determined and combined to estimate the location of a cavity with good accuracy. To reference this document use: http://resolver.tudelft.nl/uuid:50734e45-3a08-4986-b8ba-5c711daa76bf Publisher EAGE Source Proceedings 76th EAGE Conference and Exhibition, Amsterdam (The Netherlands) 16-19 June, 2014 Part of collection Institutional Repository Document type conference paper Rights (c) 2014 The Authors Files PDF 306492.pdf 638.92 KB Close viewer /islandora/object/uuid:50734e45-3a08-4986-b8ba-5c711daa76bf/datastream/OBJ/view