Seismic data interpolation and de-noising in the frequency-wavenumber domain
نویسنده
چکیده
I introduce a unified approach for de-noising and interpolation of seismic data in the frequency-wavenumber (f-k) domain. First an angular search in the f-k domain is carried out to identify a sparse number of dominant dips, not only using low frequencies but over the whole frequency range. Then, an angular mask function is designed based on the identified dominant dips. The mask function is utilized with the least-squares fitting principle for optimal de-noising or interpolation of data. The least-squares fit is directly applied in the t-x domain. The proposed method can be used to interpolate regularly sampled data as well as randomly sampled data on a regular grid. Synthetic and real data examples are provided to examine the performance of the proposed method.
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