eprintid: 4896
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/48/96
datestamp: 2023-11-09 16:16:36
lastmod: 2023-11-09 16:16:36
status_changed: 2023-11-09 15:59:50
type: article
metadata_visibility: show
creators_name: Sajid, M.
creators_name: Ghosh, D.
title: Logarithm of short-time Fourier transform for extending the seismic bandwidth
ispublished: pub
keywords: Algorithms; Optical resolving power; Spectroscopy; Stratigraphy, Amplitude spectra; Frequency spectra; Mathematical formulation; Seismic processing; Seismic resolution; Short time Fourier transforms; Useful properties; User-defined parameters, Seismology, algorithm; amplitude; Fourier transform; resolution; seismic data; seismicity
note: cited By 9
abstract: Improving seismic resolution is essential for obtaining more detailed structural and stratigraphic information. We present a new algorithm to increase seismic resolution with a minimum of user-defined parameters. The algorithm inherits useful properties of both the short-time Fourier transform and the cepstrum to smooth and broaden the frequency spectrum at each translation of the spectral decomposing window. The key idea is to replace the amplitude spectrum with its logarithm in each window of the short-time Fourier transform. We describe the mathematical formulation of the algorithm and its testing on synthetic and real seismic data to obtain broader frequency spectra and thus enhance the seismic resolution. © 2014 European Association of Geoscientists & Engineers.
date: 2014
publisher: Blackwell Publishing Ltd
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84906500085&doi=10.1111%2f1365-2478.12129&partnerID=40&md5=ed90b562b48837f0f5d222a2dafc1eab
id_number: 10.1111/1365-2478.12129
full_text_status: none
publication: Geophysical Prospecting
volume: 62
number: 5
pagerange: 1100-1110
refereed: TRUE
issn: 00168025
citation:   Sajid, M. and Ghosh, D.  (2014) Logarithm of short-time Fourier transform for extending the seismic bandwidth.  Geophysical Prospecting, 62 (5).  pp. 1100-1110.  ISSN 00168025