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Claerbout (1992)
casts the problem of slope estimation as a univariate optimization problem, based
on the observation that the partial differential equation
| |
(1) |
is zero-valued if the wavefield u(t,x) consists only of plane waves with
time slope, or ``stepout,'' p. Claerbout also notes that a cascade of two
PDEs annihilates data consisting of plane waves with two slopes, p1 and p2.
The analog to equation (1) is:
| |
(2) |
or after expansion,
| |
(3) |
Next: Discretizing the problem
Up: Brown: Slope estimation
Previous: Background
Stanford Exploration Project
11/11/2002