** Next:** CSP migration, 3D case
** Up:** Goldin: Method of discontinuities
** Previous:** 10: EXTREMAL VELOCITIES

Our task will be to choose a kernel that supplies the
proportionality of image amplitude and reflection coefficient.
We shall neglect: 1) directional characteristics of the source,
2) refraction coefficients, 3) influence of the free boundary, and
4) variation of the density . With these restrictions the
amplitude of a wave on the surface is:

| |
(116) |

where *s* and *r* are the source and receiver locations, describes the geometrical spreading of a wave propagating along the
ray (see Figure 1), and *R* is the reflection coefficient at
the point .
Equation (116) is good for marine surveys. For land surveys we usually measure
the vertical component

** Next:** CSP migration, 3D case
** Up:** Goldin: Method of discontinuities
** Previous:** 10: EXTREMAL VELOCITIES
Stanford Exploration Project

1/13/1998