HR: 15:45h
AN: S44A-02 INVITED     [Abstracts]
TI: Wave Field Attenuation and the Task-Specific Inverse Scattering Series
AU: * Innanen, K A
EM: kinnanen@geop.ubc.ca
AF: Dept. of Physics, University of Houston, SR Bldg. 1, University of Houston, Houston, TX 77204 United States
AB: Task-specific portions of the inverse scattering series (ISS) are currently under examination as to their potential for accomplishing various key seismic processing objectives in the absence of accurate knowledge of the medium. Study of the effect of Q on terms in the forward scattering series suggests that the same mechanisms that accomplish reflector location in the ISS (the imaging subseries) should act to compensate for the suppression of high frequencies of the signal that is associated with visco-acoustic propagation. Here we develop more specifically the basics of the non-linear data operations that act to generate a Q compensation operator without prior knowledge or specific determination of Q. This study at its least ambitious aims to describe the effect on ISS algorithms due to the presence of Q; at its most ambitious it aims to develop a practical means to re-provision suppressed signal resolution in cases where little is known a priori about the medium properties. Reference: Innanen, K. A., and Weglein, A. B., Construction of Absorptive/Dispersive Wave Fields with the Forward Scattering Series, 2003: Journal of Seismic Exploration, 12: 259--282.
DE: 1734 Seismology
DE: 3260 Inverse theory
SC: Seismology [S]
MN: 2005 Joint Assembly