Curve Fit Operating Modes
The curve fitter has two operating modes:
• Fixed Order
• Max Order
In fixed order, the curve-fit routine uses only the user-specified numerator and
denominator order. The analyzer develops a model (with a particular fixed
order) with a frequency response that best approximates the complex data in a
least-squares sense.
In max order mode, the curve-fit routine uses successively larger system orders
until it finds the best fit—or until the maximum system order is reached. Both
the maximum numerator order (number of zeros) and the maximum
denominator order (number of poles) can be specified.
Agilent 35607A
Operator's Guide Curve Fit Option 1D3
16-5