A16 DATA-DRIVEN P-S SEPARATION IN OBC DATA EDME P. 1 SOUDANI M.T.A. 2 3 BOELLE J.L. 2 SINGH S.C 1 . Abstract 1 OBC technology provides information on both pressure and particle velocity recorded at the seafloor level allowing complementary PP and PS imaging. In the following paper we describe a new elastic decomposition scheme that separates upgoing-downgoing P and S wavefields in the��-p domain. We introduce frequency dependant operators to calibrate the geophones so that the process does not require any a priori knowledge of seafloor parameters. We start by describing theoretical aspects for complete decomposition. Then we detail


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