INSTANTANEOUS SPECTRAL ATTRIBUTES BASED ON TIME-FREQUENCY TRANSFORMS

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ZABIHI NAEINI E.; SIAHKOUHI H.R.

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Seminar Paper

Paper Information

Seminar: IRANIAN GEOPHYSICS CONFERENCE
Year:2006 | Issue:12

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Title

INSTANTANEOUS SPECTRAL ATTRIBUTES BASED ON TIME-FREQUENCY TRANSFORMS

Author(s)

ZABIHI NAEINI E. | SIAHKOUHI H.R.

Keywords

SHORT TIME FOURIER TRANSFORM

CONTINUOUS WAVELET TRANSFORM

TIME-FREQUENCY MAP

INSTANTANEOUS SPECTRAL ATTRIBUTE

DOMINANT FREQUENCY

SPECTRAL BANDWIDTH

CENTRAL FREQUENCY

Abstract

SPECTRAL DECOMPOSITION IS AN IMPORTANT SIGNAL ANALYSIS TOOL FOR SEISMIC DATA. TRADITIONALLY, 2D REPRESENTATION IN TIME AND FREQUENCY SPACE FOR A 1D SIGNAL IS ACHIEVED BY TAKING THE FOURIER TRANSFORM OVER A SHORT-TIME WINDOW. THE WINDOWING PROBLEM IN TIME-FREQUENCY ANALYSIS IS ABSENT IN CONTINUOUS WAVELET TRANSFORM (CWT) METHOD. TIME-FREQUENCY SPECTRA ARE OFTEN CHARACTERIZED BY AVERAGE MEASURES. THESE AVERAGE MEASURES NAMELY CENTER FREQUENCY, DOMINANT FREQUENCY AND SPECTRAL BANDWIDTH ARE COMMONLY KNOWN AS SPECTRAL ATTRIBUTES. NEWLY DEVELOPED SPECTRAL ATTRIBUTES BASED ON TIME-FREQUENCY MAP OF CONTINUOUS WAVELET TRANSFORM ARE DEVELOPED IN THIS WORK.

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APA: Copy

ZABIHI NAEINI, E., & SIAHKOUHI, H.R.. (2006). INSTANTANEOUS SPECTRAL ATTRIBUTES BASED ON TIME-FREQUENCY TRANSFORMS. IRANIAN GEOPHYSICS CONFERENCE. SID. https://sid.ir/paper/905506/en

Vancouver: Copy

ZABIHI NAEINI E., SIAHKOUHI H.R.. INSTANTANEOUS SPECTRAL ATTRIBUTES BASED ON TIME-FREQUENCY TRANSFORMS. 2006. Available from: https://sid.ir/paper/905506/en

IEEE: Copy

E. ZABIHI NAEINI, and H.R. SIAHKOUHI, “INSTANTANEOUS SPECTRAL ATTRIBUTES BASED ON TIME-FREQUENCY TRANSFORMS,” presented at the IRANIAN GEOPHYSICS CONFERENCE. 2006, [Online]. Available: https://sid.ir/paper/905506/en

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