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Estimation of the Seismic Dispersion Parameters by Wavelets

Youssef Bentaleb, Said El Hajji


In this paper, we propose a new approach for the dispersion estimation of a seismic surface waves, in this issue, our method is based on the Continuous Wavelet Transform (CWT) applied to the seismic signal (1D analysis).
In fact, the proposed method give the dispersion estimation in two cases: in the first, which the propagation is modeled by a time delay and phase shift of wave between sensors, in the second case, the propagation take place in the complex field (inhomogeneous medium) thus modeled by three parameters: delay, phase shift and dispersion coefficient.
When applied to synthetic data, this new method gives much improved results when compared to other standard methods.


Continuous Wavelet Transform, surface seismic waves, mathematical modeling, delay, phase shift, dispersion coefficient.

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