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Another kind of quality measure for an estimation process is a coherence measure:
| |
(5) |
Coherence measures have been previously used in seismic data processing, for example,
in velocity analysis (Biondi, 1990). Its normalized version is called semblance:
| |
(6) |
It can be shown that both C(t,x,p) and Cn(t,x,p) reach their maximum
values when the traces in the subsection Pi,j are identical, which implies
that the estimated p is equal to the true dip.
Next: Relations
Up: OBJECTIVE FUNCTIONS
Previous: Error measure
Stanford Exploration Project
12/18/1997