Step 11: View And Edit The Curve Fit Table - HP 3563A Operating Manual

Curve F�
Curve Fit Setup Steps
To judge the accuracy of a fit, view the
this superimposes the measured frequency response and the curve fit result, it quickly indicates any
differences.
Step 1 1 : View and Edit the C urve Fit Table
The curve-fit table, displayed by pressing
extracted by the curve fitter. Figure 16-15 shows an example of the curve-fit table. Lines identified
with arrows are either set or added by the user, and are f IXed during curve fitting.
EDIT TABLE
Pressing also displays the menu used to edit the table. This menu allows you to alter
the pole and zero information to obtain the desired fit. The four editing soft keys
UNFIX L1NE# , ADD L1NE#
EDIT POLES
whether or
1
- 2 5 0 .015
- 500.007 ±j
2
Time
d e l a y
S c o l e F r e q u e n c y "
16-46
FRONT BACK
EDIT TABLE,
DELETE L1NE#)
and
EDIT ZEROS
is active.
5 C u r v e F i t
P O L E S 6
2.0K
0.0
5
...
1.0
Figure 16-15. The s-Domain Curve-Fit Table with
Several Fixed Terms
display when the fit is complete. Because
contains the pole and zero locations
apply to either the poles or zeros, depending on
Z E R O S
599.992
=) 10.0k
-99.9634
1.0M
Gain-
(FIX L1NE#,
6