2017
12th International Conference & Exposition on Petroleum Geophysics
Comparison of local time-frequency decomposition and continuous wavelet transform for seismic spectral decomposition
Published in GEOHORIZONS - 2017
- Vol.
- ISSN NO :
- DOI Link
Kiran Khonde1,2, Ashutosh Londhe1, Richa Rastogi1, Anjali Kshirsagar2,3 1- High Performance Computing-Scientific and Engineering Applications Group, Centre for Development of Advanced Computing, Pune,
Abstract
Spectral decomposition techniques are widely used in oil industry for detection of frequency anomalous features in seismic data. In last few years many advanced techniques are developed. Local timefrequency decomposition (LTFD) is recently developed spectral decomposition technique which uses regularized nonstationary regression with Fourier bases. In the present paper, we compare LTFD with CWT in terms of time and frequency resolution capabilities. Chirp signals, Berlage wavelets and Ricker wavelets of different frequencies are used for performing comparison.
Keywords
Continuous wavelet transform, seismic data interpretation, spectral decomposition, local time-frequency decomposition