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The last step is the computation of the
scaling factor from the partial derivatives
and .
The unit vector
tangent to
the integration line at constant is given by

| |
(23) |

The mapping along the azimuth axis
of a vector of the same direction as
**u** and length proportional to the sampling
in the offset wavenumber domain
is a segment of length
| |
(24) |

If
is the azimuthal range of the stacking at ,the scaling factor is set as in the following:
| |
(25) |

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Stanford Exploration Project

10/14/2003