Shallow-Sea Deghosting via a Compressed Sensing Pseudo-Vertical Velocity Method

Abstract

To eliminate ghost effects, a compressed sensing (CS) pseudo-vertical velocity method is proposed. Based on pressure data acquired using a conventional acquisition configuration, the vertical component of particle velocity at the same receiver positions is estimated using an expanded CS deghosting method. The pseudo-vertical velocity data, combined with the pressure data, are then used for deghosting. The proposed technique is applied to complex synthetic and field data, and improvements in resolution and infilling of frequency notches are achieved for shallow-sea single-component seismic data. In addition, the energy of the low-frequency signal is enhanced. Therefore, this proposed deghosting method has great potential in seismic data processing and subsurface imaging for offshore exploration.