Adaptative filter for seismic signals of variable slowness

Abstract

Recently, wide-angle seismic techniques are getting popular for ocean subsoil research. For these studies, an array of sensors is deployed at the bottom of the sea to record the reaction of the subsoil to a set of airguns that shoot nearby the surface. These shots are regular enough to detect refl ected signals through their coherent appearance. In order to take advantage of these similarities, the response of each shot is aligned side by side according to their shot time, making a time-distance image called record section (RS)