Generalized nonelliptic moveout approximation in τ-p domain

Abstract

We have derived a generalized nonelliptic moveout approximation in the [Formula: see text] domain that is a companion to the generalized nonhyperbolic moveout approximation in the [Formula: see text] domain. Approximation requires five parameters: three parameters that can be determined from the zero-slowness ray and two parameters that can be determined from one additional ray. We convert the generalized approximation from the [Formula: see text] domain to the [Formula: see text] domain and vice versa. The generalized nonelliptic moveout approximation in the [Formula: see text] domain admits other moveout approximations as special cases. Several analytical and numerical tests showed a superior accuracy of the generalized nonelliptic moveout approximation.