Angle domain multi-component migration imaging method

The invention relates to an angle domain multi-component migration imaging method, which comprises the following steps of: dividing a PP wave and PS wave common shot gather seismic record of each shotinto a plurality of local windows, and determining a beam center point; carrying out local inclined superposition on the local window to obtain a local plane wave; determining a propagation angle ata P-wave imaging point emitted from a seismic source, a propagation angle at a P-wave central ray imaging point emitted from a beam central point and a propagation angle at an S-wave central ray imaging point emitted from the central point; carrying out reverse continuation on the local plane wave to obtain a reverse continuation wave field, and respectively determining P wave incident angles of the PP wave and the PS wave at an imaging point; and superposing imaging values in all preset incident angle ranges in the extracted PP wave and PS wave angle domain common imaging point gather to obtain a PP wave and PS wave a