Page 461 - Acquisition and Processing of Marine Seismic Data

452 9. VELOCITY ANALYSIS

FIG. 9.26 A comparison of two semblance plots of a synthetic CDP gather (A) without and (B) with top mute. A direct wave
and 20% random noise is included in the synthetic data to demonstrate the effect of top mute.

FIG. 9.27 A comparison of two semblance plots of a real marine supergather (A) without and (B) with top mute.