Print Email Facebook Twitter Reflecting boundary conditions for interferometry by multidimensional deconvolution Title Reflecting boundary conditions for interferometry by multidimensional deconvolution: invited paper Author Weemstra, C. (TU Delft Applied Geophysics and Petrophysics) Wapenaar, C.P.A. (TU Delft Applied Geophysics and Petrophysics) van Dalen, K.N. (TU Delft Applied Mechanics) Date 2017 Abstract Seismic interferometry (SI) takes advantage of existing (ambient) wavefield recordings by turning receivers into so-called “virtual-sources.” The medium’s response to these virtual sources can be harnessed to image that medium. Applications of SI include surface-wave imaging of the Earth’s shallow subsurface and medical imaging. Most interferometric applications, however, suffer from the fact that the retrieved virtual-source responses deviate from the true medium responses. The accrued artifacts are often predominantly due to a non-isotropic illumination of the medium of interest, and prohibit accurate interferometric imaging. Recently, it has been shown that illumination-related artifacts can be removed by means of a so-called multidimensional deconvolution (MDD) process. However, The current MDD formulation, and hence method, relies on separation of waves traveling inward and outward through the boundary of the medium of interest. As a consequence, it is predominantly useful when receivers are illuminated from one side only. This puts constraints on the applicability of the current MDD formulation to omnidirectional wavefields. We present a modification of the formulation of the theory underlying SI by MDD. This modification eliminates the requirement to separate inward-and outward propagating wavefields and, consequently, holds promise for the application of MDD to non-isotropic, omnidirectional wavefields To reference this document use: http://resolver.tudelft.nl/uuid:15993158-7871-409b-bb47-c941ef170a41 DOI https://doi.org/10.1121/1.5007833 Embargo date 2018-05-01 ISSN 0001-4966 Source The Journal of the Acoustical Society of America, 142 (4), 2242-2257 Event 3rd Joint Meeting of the Acoustical Society of America and the European Acoustics Association, 2017-06-25 → 2017-06-29, Boston, United States Part of collection Institutional Repository Document type journal article Rights © 2017 C. Weemstra, C.P.A. Wapenaar, K.N. van Dalen Files PDF 1.5007833.pdf 2.17 MB Close viewer /islandora/object/uuid:15993158-7871-409b-bb47-c941ef170a41/datastream/OBJ/view