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The input data was first bandpass-filtered to remove the DC component and to
limit the high frequencies to 32 Hz, and subsampled to 16 ms.
It was then infilled with null traces in both offset dimensions, padded
to add negative inline offsets and to extend the crossline aperture and sorted
into a five dimensional regular cube of time, offset and CMP coordinates.
Stanford Exploration Project
4/6/2006