  In marine seismic reflection surveys, most data comprise only the pressure
acquired by a hydrophone array. The acquired data are subject to frequency
bandwidth limitations caused by the contamination of surface-reflected ghost
signals associated with seismic signals generated by artificial sources such as
airguns. This study developed a method to exploit the mirror-image effect to
control these signals and image the subsurface structure using signals
generated by virtual seismic sources at locations mirroring actual sources. The
processing results indicate that decomposed ghost signals can be regarded as
additional survey data to enhance the signal-to-noise ratio and widen
bandwidth.
