Abstract
This paper presents the idea of deconvolution using FFT and considers the meanings of utilizing the deconvolution technique for seismic wave analyses. Seismic waves are separated into amplitude-dependent parts, called minimum-phase-shift functions (MPS), and other parts, called all-pass functions (AP), by means of deconvolution using FFT. This deconvolution technique is summarized in Figs.1 and 2. The meanings of MPS are considered by simple examples shown in Figs.3 to 5. Furthermore, for several seismic waves, the characteristics of MPS and AP are examined in Figs.6 to 11.
