The down-going wavefield at the sensor position is forward propagated to the water bottom, resulting in a down-going wavefield at the water bottom (46).
传感器部位上的下行波场被正向传播到水底，产生水底处的下行 波场（46）。
2
To handle the true 3D nature of the wavefield, including the wide azimuths and large take-off angles of the ghosts, a 3D deghosting method was developed.
为了处理波场的真实3D特性（其中包括宽方位角和重影入射角），发明了三维虚反射剔除方法。
3
Prestack depth migration of areal shot records and controlled illumination can get high-quality images by source wavefield controlling and highly efficient areal shot records migration.