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goes from a theoretical local target in a theoretically homogeneous medium, and open
an information window with this target and medium parameters. Your task is to match
the theoretical hyperbola with the signal’s hyperbola on the profile. First, align the
vertices of the hyperbolas; for this purpose, bring the cursor to the signal’s hyperbola
vertex, and press the left mouse button. The hyperbola slope may be changed by
pressing right mouse button: position the cursor on the signal’s hyperbola branch, and
press the right mouse button. For more accurate hyperbolas matching we recommend to
use Zoom in on the Main menu (see below) and make several iterations. Matching
hyperbolas example is shown in Fig. 10.3.
Theoretical hyperbola’s line color may be changed in Tools / Lines color drop-
down menu.
Fig. 10.3. Hyperbola technique used for measuring local target parameters.
Always remember that parameters determination accuracy fully depends on a
precociously configured profile length and zero point (Tools / Output parameters).
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