High-resolution imaging of seismic data: How to combine wave-theory with signal processing techniques

Seismic migration aims to re-locate recorded seismic events to their true locations in the subsurface and requires a velocity model. To improve the resolution of such a subsurface image, we employ ideas taken from Fresnel-aperture migration which uses low-frequency stationarity to select that part of data that coherently contribute to the final image. Thus, this technique offers an efficient way to window the coherent reflection energy which if being aligned can be input to a window-steered MUSIC approach with the potential of giving high-resolution seismic images.