The strong viscosity of the subsurface introduces amplitude absorption and phase-velocity
dispersion. Incorrect compensation of the inherent attenuation (the strength of the seismic …

Least-squares reverse time migration (LSRTM) is currently one of the most advanced
migration imaging techniques in the field of geophysics. It uses least-squares inversion to fit …

The anisotropic characteristics of underground media play a crucial role in seismic wave
propagation and should be accounted for during seismic imaging. The least-squares …

Ground-penetrating radar (GPR) migration is a crucial imaging method to obtain the spatial
position, size, and shape of underground structures. However, Kirchhoff migration, finite …

Reverse-time migration (RTM) has the advantage that it can handle steep dip** structures
and offer high-resolution images of the complex subsurface. Nevertheless, there are some …

Seismic waves propagating in anisotropic earth media suffer from waveform distortion,
which leads to degraded resolution in seismic data imaging if this adverse effect is not …

Seismic coherent noise is often found in poststack seismic data, which contaminates the
resolution and integrity of seismic images. It is difficult to remove the coherent noise since …

High-precision finite difference (FD) wavefield simulation is one of the key steps for the
successful implementation of full-waveform inversion and reverse time migration. Most …

The formulation of conventional least-squares reverse time migration (LSRTM) starts with
the forward modeling process; as a result, the migration operator of it presents as a …

Least-squares reverse time migration in the frequency domain (FLSRTM) is capable of
producing a high-resolution reflectivity model, provided that the Green's functions can be …