Filter design for suppression of surface multiples in a non-normal incidence seismogram
F. Aminzadeh and J. M. Mendel
Journal name: Geophysical Prospecting
Issue: Vol 29, No 6, December 1981 pp. 835 - 852
Info: Article, PDF ( 721.49Kb )
In this paper we design a non-linear filter to suppress surface multiples in a non-normal incidence plane wave seismogram of a horizontally-layered elastic (or acoustic) earth model. Our filter is optimal in a least-squares sense and is very efficient in suppressing surface multiples, especially for small incidence angles. The design is based on an extension of earlier work by Mendel on normal incidence Bremmer series decomposition to the case of non-normal incidence, and relies heavily on work by Aminzadeh on a non-normal incidence state space model.