Reconstruction of Seismic Signals from Highly Aliased Multichannel Samples by Generalized Matching Pursuit
نویسنده
چکیده
In this talk I will introduce marine seismic acquisition technologies and focus on solutions to maximize the bandwidth of the measured data. This involves detecting and removing the components of the wavefields that are reflected at the sea surface and that propagate downward: these downgoing reflections, called “ghosts” in literature, interfere with the upgoing wavefield, that is generated by subsurface reflections and is the signal of interest. The seismic ghosts impact severely the spectrum of the marine seismic data, resulting in significantly reduced resolution of the final seismic images obtained from processing.
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