Patent ID: 6747913
Filing Date: 2004-06-08
Classification: G01V

Abstract:
A method for receiving acoustic wavefield beneath the surface of the water, the method comprising:receiving at least a portion of an acoustic wavefield at a first position; receiving at least a portion of an acoustic wavefield at a second position; receiving at least a portion of an acoustic wavefield at a third position, wherein the first position, the second position, and the third position are triangularly positioned relative to one another and wherein the first position is not directly above or below the second position and wherein the first position is not directly above or below the third position and wherein the second position is not directly above or below the third position; transforming the received portions of the acoustic wavefield from the first, the second and the third positions from the space-time domain to the spatial frequency domain; deghosting the transformed acoustic wavefield; and transforming the deghosted wavefield back to the space time domain.