Translations:Zero-phase wavelets/3/en

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In seismic work, we cannot attain an infinitely large range of frequencies; instead, we must work in a narrower range governed by the frequency characteristics of the earth and our instruments. We also must take into account our ultimate objectives and the economic costs involved. With all of those limitations, we find ourselves working in a relatively narrow frequency band, such as the band from 5 Hz to 50 Hz.