The Phase Property of a Finite Realization of Random Noise and Its Influence on Deconvolution *

A new method of Vibroseis deconvolution has been recently proposed by the authors. This discussion describes the effects of noise on the application of this method. The initial deconvolution step involves estimating the spectrum of the Vibroseis wavelet by homomorphic filtering. It is shown that noise causes problems with phase estimation. Hence, the Vibroseis wavelet is assumed to be zero phase. Examples demonstrate that zero phase cepstral filtering is a robust wavelet estimation approach for noisy data. The second step of the deconvolution method forms an impulse response model by a spectral extension method. Although this step can improve the resolution of seismic arrivals, it must be applied with caution in view of the deleterious effects of noise.

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The Phase Property of a Finite Realization of Random Noise and Its Influence on Deconvolution *

Abstract: DE VOOGD,

Cited by 2 publications

References 4 publications

Predictive Deconvolutioin: (Part 2)

Predictive Deconvolutioin: (Part 2)

Impulse Response Models for Noisy Vibroseis† Data*

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