Generating an image of dispersive energy by frequency decomposition and slant stacking
Pure and Applied Geophysics
By: J. Xia, Y. Xu, and R. D. Miller
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Abstract
We present a new algorithm for calculating an image of dispersive energy in the frequency-velocity (f-v) domain. The frequency decomposition is first applied to a shot gather in the offset-time domain to stretch impulsive data into pseudo-vibroseis data or frequency-swept data. Because there is a deterministic relationship between frequency and time in a sweep used in the frequency decomposition, the first step theoretically completes the transform from time to frequency. The slant stacking is then performed on the frequency-swept data to complete the transform from offset to velocity. This simple two-step algorithm generates an image of dispersive energy in the f-v domain. The straightforward transform only uses offset information of data so that this algorithm can be applied to data acquired with arbitrary geophone-acquisition geometry. Examples of synthetic and real-world data demonstrate that this algorithm generates accurate images of dispersive energy of the fundamental as well as higher modes. ?? Birkha??user Verlag, Basel, 2007.
Suggested Citation
Xia, J., Xu, Y., and Miller, R., 2007, Generating an image of dispersive energy by frequency decomposition and slant stacking: Pure and Applied Geophysics, v. 164, no. 5, p. 941-956, https://doi.org/10.1007/s00024-007-0204-9.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Generating an image of dispersive energy by frequency decomposition and slant stacking |
| Series title | Pure and Applied Geophysics |
| DOI | 10.1007/s00024-007-0204-9 |
| Volume | 164 |
| Issue | 5 |
| Publication Date | April 16, 2007 |
| Year Published | 2007 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Pure and Applied Geophysics |
| First page | 941 |
| Last page | 956 |