DOI: 10.1190/1.1444223
关键词: Data processing 、 Extrapolation 、 Data resolution 、 Mineralogy 、 Algorithm 、 Amplitude 、 Seismic migration 、 Land acquisition 、 Prestack 、 Geology 、 Resolution (electron density) 、 Geochemistry and Petrology 、 Geophysics
摘要: Ideally, full prestack migration involves a 4-D integration along the source and receiver coordinates. Obviously, for cross‐spread data (typical for land acquisition) this 4-D integration cannot be effectuated. An analysis is presented of the resolution and amplitude behavior of full prestack migration, applied to cross‐spread data. Moreover, a proposal is made to modify operators that partly compensate for the diminishing effects of the cross‐spread aquisition geometry on amplitudes and resolution.