| ERTLab | > | 4. Inversion Workspace | > Inversion |
|
Inversion |
| << | >> | |
![]() |
|
The inversion parameters are set by selecting Inverse Solver set up from the Explorer menu.
A series of 3 tabbed windows is presented. In the numerical core we set
the Maximum number of Inverse
iterations. A value of 15 is typical for Rho (resistivity) and 10 for
IP. These are sometimes referred to as the outer iterations.
We also set the Maximum internal
inverse PCG iterations, which are sometimes called the inner
iterations. A value of 12 is typical for Rho (resistivity) and 20 for IP.
Finally we set the Tolerance for
the Inverse PCG iterations. Larger numbers result in faster inversion.
The Noise parameters are set on the last tab.
The inversion is launched by returning to the DI workspace page
and selecting Run Data inversion from the menu. After clicking
the Run Inversion button, ERTLab asks to save a progress file (.prg extension)
where the progress of inversion is written. Diagrams describing the
behaviour of the inversion are automatically displayed in the
inversion progress graphics window that appears after saving the progress
file.
|
|
|© 2006 Geostudi Astier srl and Multi-Phase Technologies LLC| |