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Resume the previous steps until the coordinates of all the control points involved in
the calibration process have been determined by the rover receiver.
On the points list screen (figure 28), check the amount of residual for each control
point involved in the calibration. The lower these values, the better the consistency
of your control point network.
Should some residuals be abnormally high, the relevant point(s) should be deleted
using the
button, or removed from the calibration process using the
Delete
ton.
Warning! At least 3 points are required to compute residuals in a horizontal system,
and at least 4 points in a horizontal + vertical system.
The
button gives access to a menu allowing you to enable/disable the selected
On/Off
control point for the horizontal control process, for the vertical control process, or
for both (figure 29).
The calibration parameters can be saved as a *.DAT file for further use. Click on the
button to do this.
Save
To quit the calibration function, click on the
Figure 28- Computation residu-
als (rows 3 and 4)
button.
OK
Figure 29- Defining horizontal/
vertical control point
but-
On/Off
27
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