3-D depth migration via McClellan transformations
نویسندگان
چکیده
منابع مشابه
3-D depth migration via McClellan transformations
Three-dimensional seismic wavefields may be extrapolated in depth, one frequency at a time by two-dimensional convolution with a circularly symmetric, frequencyand velocity-dependent filter. This depth extrapolation, performed for each frequency independently, lies at the heart of 3-D finite-difference depth migration. The computational efficiency of 3-D depth migration depends directly on the ...
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Two-dimensional (2-D) spatially varying convolutional filters for three-dimensional (3-D) depth extrapolation are efficiently designed and implemented by using McClellan transformations. Although efficient, McClellan transformations only approximate circularly symmetric depth extrapolation filters. The accuracy of the extrapolation filters can be increased only at an increase in the computation...
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ژورنال
عنوان ژورنال: GEOPHYSICS
سال: 1991
ISSN: 0016-8033,1942-2156
DOI: 10.1190/1.1442990