The analysis of the effectiveness of the seismic noise attenuation by means of Karhunen-Loeve (K-L) transform
DOI:
https://doi.org/10.7494/geol.2010.36.2.203Słowa kluczowe:
geophysics, seismic method, processing, K-L transform, noise attenuationAbstrakt
In the paper the analysis of the effectiveness of multiples and random noise attenuation using Karhunen-Loeve (K-L) transform is presented. The K-L transform is realized with application the process Eigenimage Filter in seismic data processing system ProMAX. The basic part of the paper is directed to the analysis of multiples attenuation by means of the K-L transform applied to field data. In the analysis the common shot point gathers (seismic records) were used as well as the traces of the CDP gathers. In the case of CDP gathers the main attention was paid on the multiple attenuation in the averaged CDP gathers (supergathers) prepared for the interactive velocity analysis. The influence of the K-L filter parameters was defined on the effectiveness of multiples removing from the velocity analysis wave images. Finally the effectiveness of the K-L filter was estimated in improving the coherent to random signals ratio on the seismic records.Pobrania
Bibliografia
Al-Yahya K.M., 1991. Application of the partial Karhunen-Loeve transform to suppress random noise in seismic sections. Geophysical Prospecting, 39, 77-93.
Bitri A. & Grandjean G., 2004. Suppression of guided waves using the Karhunen-Loeve transform. First Break, 22, May, 45-47.
Jones I.F. & Levy S., 1987. Signal-to-noise ratio enhancement in multichannel seismic data via the Karhunen-Loeve Transform. Geophysical Prospecting, 35, 12-32.
Kasina Z., 2001a. Techniki tłumienia fal wielokrotnych w przetwarzaniu danych sejsmicznych. Technika Poszukiwań Geologicznych, Geosynoptyka i Geotermia, 1, 43-50.
Kasina Z., 2001b. Analiza efektywności tłumienia fal wielokrotnych za pomocą filtracji Radona w oparciu o dane modelowe. Technika Poszukiwań Geologicznych, Geosynoptyka i Geotermia, 2, 45-52.
Kasina Z., 2001c. Porównanie efektywności tłumienia fal wielokrotnych za pomocą filtracji F-K i filtracji Radona. Geologia (kwartalnik AGH), 27, 2-4, 562-574.
Kritski A., Vincent A.P., Yuen D.A. & Carlsen T., 2007. Adaptive wavelets for analyzing dispersive seismic waves. Geophysics, 72, 1, V1-V11.
Liu X., 1999. Ground roll suppression using Karhunen-Loeve transform. Geophysics, 64, 564-566.
Weglein J.W., 1999. Multiple attenuation: an overwiew of recent advances and the road ahead. The Leading Edge, January, 40-44.
Pobrania
Opublikowane
Numer
Dział
Licencja
Authors have full copyright and property rights to their work. Their copyrights to store the work, duplicate it in printing (as well as in the form of a digital CD recording), to make it available in the digital form, on the Internet and putting into circulation multiplied copies of the work worldwide are unlimited.
The content of the journal is freely available according to the Creative Commons License Attribution 4.0 International (CC BY 4.0)
