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Imaging by wavefront synthesis
Interpolation of missing offset traces
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adjoint angle-dependent reﬂectivity recovery Bruin’s imaging condition CMP gather deﬁne degrees angle depth extrapolation depth level Doctor of Philosophy domain extrapolation operator ﬁgure ﬁrst ﬂat forward model geophone image cube image obtained incidence angle interpolation inverse problem irregular surface iteration lateral velocity Marmousi data set Marmousi image missing traces near-offset traces obtained by synthesizing offset traces optimum velocity spectrum plane-wave synthesis planewave synthesis imaging prestack migration proﬁle imaging propagation operator PWS imaging ray paths ray tracing ray trajectories reference model reﬂection coefficient reﬂectivity matrix reﬂector locations RMO velocity analysis S-waves section of Marmousi seismic data shot proﬁle shown in Figure shows slowness model source wave ﬁeld Stacked image stacked section subsurface surface-oriented synthesis operator synthesizing a plane-wave synthesizing plane waves synthetic data thesis Three CSL gathers tomographic velocity estimation traveltime tomography unitary operator wave equation wave stack wave synthesis imaging wavefront synthesis