| 摘要 |
<p>A method is disclosed for processing of dual sensor on the bottom cable (OBC) data (102 & 104) that corrects for angular incidence angle (106), corrects for estimated reflectivity, and combines the corrected sensor traces using an optimal diversity scaling technique (114). In one embodiment, the disclosed method takes seismic traces from a geophone and a hydrophone, corrects the geophone trace for the incidence angle (106), determines diversity filters for optimally combining the geophone and hydrophone traces, applies the diversity filters, estimates a reflectivity coefficient (122) for the ocean bottom (potentially for different angles of reflection), scales the geophone data according to the reflectivity, and re-applies the diversity filters to obtain a combined trace. The combined trace is expected to have various artifacts eliminated, including ghosting and reverberation (126), and is expected to have an optimally determined signal-to-noise ratio.</p> |
