Title: A novel approach of seismic instantaneous frequency extraction and its application on field data
Abstract:Summary As seismic data from field acquisition is a typical nonlinear and non-stationary signal, the conventional method to extract the instantaneous frequency by the Hilbert transform which is proper...Summary As seismic data from field acquisition is a typical nonlinear and non-stationary signal, the conventional method to extract the instantaneous frequency by the Hilbert transform which is proper for linear and stationary signal is limited in practice. A novel approach based on empirical mode decomposition (EMD) and the wavelet transform to extract seismic instantaneous frequency data is studied in this paper. In order to avoid artificial choice by experience, a method of choosing proper intrinsic mode function (IMF) decomposed from seismic traces is proposed by matching acoustic logging data and geological sequence. then, The selected IMF of seismic data is used to extract instantaneous frequency by the Morlet wavelet transform. By comparison of extracted instantaneous frequency in theoretical model and field data, it can be seen that result of the method in this paper is more effective than those from both of the Hilbert transform and the Hilbert-Huang transform.Read More
Publication Year: 2015
Publication Date: 2015-08-19
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 1
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