Translations:Phase rotation/24/en

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When we are dealing with the geophysics of wave propagation, we must conduct the processing under the minimum-phase assumption. Minimum phase is a characteristic of many physical systems involved in the wave-propagation process. The minimum-phase assumption is in keeping with the physical action of the earth as the seismic signal travels through the various strata. In addition, recording instruments usually are minimum phase, with a linear phase shift added in case of a constant time delay. Deconvolution depends on the minimum-phase assumption in its task of increasing seismic resolution and removing multiple reflections.