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On the choice of wavelet functions for seismic data processing
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TLDR
In this article, a wavelet model with small correction terms was proposed for denoting and interpretation of seismic data, and the efficiency of the method has been proved by modeling and examples.Abstract:
In this paper, a formula is given to well simulate the usual seismic wavelet to make the wavelet zero phase, etc. It can also simulate the wavelets of maximum phase and minimum phase approximately. The proposed wavelets with the small correction terms can satisfy the admissible condition. Similar to Morlet wavelet, thesecorrection terms can be ignored under some conditions. The Morlet wavelet is modifiled to be more suitable for the seismic data processing.On the basis of the changing wavelet model, the relationship between the energy distribution of reflected wave in time-scale domains and the selected wavelet are investigated. To make a comparison, the energy distribution of other waves like noise are studied as well. As a conclusion, the proposed wavelets in the paper are suitable for denoting and interpretation of seismic data. The efficiency of the method have been proved by modeling and examples.read more
Citations
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High-resolution characterization of geologic structures using the synchrosqueezing transform
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A New Type of Analyzing Wavelet And Its Applications For Extraction of Instantaneous Spectrum Bandwidth
TL;DR: A new type of analyzing wavelets which optimally match seismic wavelets (SW wavelets) is presented and it is proved that these wavelets are admissible and demonstrated the advantages of WT method over HT method both in precision and in antinoise performance.
Journal ArticleDOI
On the Method of Quality Factors Estimation from Zero-offset VSP Data
Jing-Huai Gao,Sen-Lin Yang +1 more
TL;DR: In this paper, peak frequency shift (PFS) method was used to estimate the quality factors of zero-off-offset VSP data, and an eigen-struct (ES) method for estimating peak frequencies of seismic wavelets was proposed.
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Seismic instantaneous frequency extraction based on the SST-MAW
TL;DR: Numerical experiments suggest that the proposed procedure yields the higher resolution and the better anti-noise performance compared to the conventional IF extraction methods based on the HT method and continuous wavelet transform.