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REFERENCES

Abma, R., 1995, Least-squares separation of signal and noise with multidimensional filters: Ph.D. thesis, Stanford University.

Canales, L. L., 1984, Random noise reduction: Expanded Abstracts, 525-527.

Kjartansson, E., 1979, Attenuation of seismic waves in rocks and applications in energy exploration: Ph.D. thesis, Stanford University.

Yilmaz, O., 2001, Seismic data analysis: processing, inversion and interpretation of seismic data: Society of Exploration Geophysicists.

 
gpr
gpr
Figure 2
Top, left: original GPR data. Top, right: Enhanced Random Noise Attenuation result. Bottom, left: f-x decon result. Bottom, right: t-x decon result. The encircled area has fewer artifacts in the ERNA result. Differences between panels are much more visible when viewed electronically.
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kja
kja
Figure 3
Top, left: original prestack seismic data. Top, right: Enhanced Random Noise Attenuation result. Bottom, left: f-x decon result. Bottom, right: t-x decon result. In the ERNA result, the upper encircled area has fewer artifacts, and the lower encircled area shows more continous reflectors (less ``checkerboard'' noise). Differences between panels are much more visible when viewed electronically.
view burn build edit restore

 
abm
abm
Figure 4
Top, left: original poststack seismic data. Top, right: Enhanced Random Noise Attenuation result. Bottom, left: f-x decon result. Bottom, right: t-x decon result. The encircled area at the bottom of the figure shows more continous reflectors (less ``checkerboard'' noise). Differences between panels are much more visible when viewed electronically.
view burn build edit restore

 
res
res
Figure 5
Final ERNA residuals and the RMS values of successive residuals, normalized with respect to the input data (shown as iteration 0 with a RMS of 1). Top panels: GPR. Middle panels: Seismic prestack. Bottom panels: Seismic poststack.
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next up previous print clean
Next: About this document ... Up: Vlad: Enhanced random noise Previous: Acknowledgments
Stanford Exploration Project
7/8/2003