Print Email Facebook Twitter Nonreciprocal Green’s function retrieval by cross correlation Title Nonreciprocal Green’s function retrieval by cross correlation Author Wapenaar, C.P.A. Faculty Civil Engineering and Geosciences Department Geotechnology Date 2006-06-15 Abstract The cross correlation of two recordings of a diffuse acoustic wave field at different receivers yields the Green’s function between these receivers. In nearly all cases considered so far the wave equation obeys time-reversal invariance and the Green’s function obeys source-receiver reciprocity. Here the theory is extended for nonreciprocal Green’s function retrieval in a moving medium. It appears that the cross correlation result is asymmetric in time. The causal part represents the Green’s function from one receiver to the other whereas the acausal part represents the time-reversed version of the Green’s function along the reverse path. Subject acoustic fieldacoustic wave scatteringGreen's function methodswave equations To reference this document use: http://resolver.tudelft.nl/uuid:810a9ed6-3572-4271-b99a-183b0afe3f7f DOI https://doi.org/10.1121/1.2208153 Publisher Acoustical Society of America ISSN 0001-4966 Source Journal of the Acoustical Society of America, 120 (1), 2006 Part of collection Institutional Repository Document type journal article Rights © 2006 Wapenaar, C.P.A.Acoustical Society of America Files PDF Wapenaar.pdf 97.01 KB Close viewer /islandora/object/uuid:810a9ed6-3572-4271-b99a-183b0afe3f7f/datastream/OBJ/view