Spider DSA User’s Manual
199
Curve Fit Setup
The supported operating mode is “Fixed order”. The order number for Zeros and
Poles (or number of coefficients for the numerator and denominator) can be set
up here. Typically, the number of poles is one greater than the number of zeros.
As for “Fit region”, the supported choices are either “Full span” or “Between two
vertical cursors”. The curve fit will be performed covering the corresponding x
axis range.
Calculate Curve Fit
Click “Calculate Curve Fit” button, will perform the curve fitting, and the fitted
signal will be shown on the same graph window (the blue curve).
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