Angle-domain common-image gathers in generalized coordinates

ADCIG theory

The ADCIG theory presented in this section draws heavily from that presented in Sava and Fomel (2003). In the ensuing development, $\boldsymbol{x}=[x_1,x_3]$ denotes the Cartesian variables and $\boldsymbol{\xi}=[\xi_1,\xi_3]$ represents a generalized Riemannian coordinate system.