METHODS AND SYSTEMS FOR EXTRAPOLATING WAVE FIELDS

摘要

SUMMARY Patent of Invention: "METHODS AND SYSTEMS FOR EXTRAPOLATING WAVE FIELDS". The present invention relates to methods and systems described for extrapolating wave fields while preventing interruptions due to spatial aliasing. Pressure wave fields measured with pressure sensors and vertical and horizontal velocity wave fields measured with three axial motions may be spatially serrated in at least one horizontal direction. The pressure wave field and / or the vertical velocity wave field are decomposed into one of an upward wave field and a downward wave field. the rising or falling wave field is extrapolated using an extrapolator that depends on components of a slow vector. In order to prevent interruptions in the extrapolated wave field due to spatial aliasing, the slowdown vector components are calculated from a measured pressure wave field and the two horizontal velocity wave fields.