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The spatial sampling function and its Fourier transform are derived to show how the sampling of the field Knowledge of how the field sampling scheme transforms to variables, s and r, relates to the sampling of the CMP processing processing co-ordinate system and their Fourier transforms variables, y and h. The results are used to consider reveals how the CMP method treats energy of various spatial the effects of spatial sampling on source generated coherent frequencies. Since wavefields contain predictable energy distributions noise such as, direct arrivals. This leads to possible processing as a function of wave type, it is possible to determine strategies for attenuating these types of potentially how various sampling schemes treat source generated aliased coherent noise events.
The widely used Born development of imaging and inversion methods, interpretations approximation is the leading term of the series. The Born and applications of seismic methods for complex structures. Finite approximation is only valid when the heterogeneities are weak difference and finite element methods, which in principle can and the propagation distance is short. After renormalization of model wave propagation in arbitrarily heterogeneous media, are the multiple scattering series, De Wolf (1971, 1985) derived a time consuming, even formidable in the case of large 3-D elastic MFSB approximation: wave problems. In this study we develop a new method based p (x) (x) (x') on multiple-forescattering single-backscattering (MFSB) approximation, V i.e. the De Wolf approximation for calculating the backscattered where pf and are the renormalized, multiple forescattered field in the configuration of surface reflection surveying.
Augmentation of original grids alone cannot reduce edge Edge effects are distortions at the edge of a domain effects to acceptable levels for certain anomalies, as can be which are artifacts of the implicit assumptions of a numerical noted in the following example.
- Geophysics > Magnetic Surveying (1.00)
- Geophysics > Gravity Surveying (0.95)