Determine whether filter System object is FIR
whether the filter System
an FIR filter. If the filter is FIR,
To determine whether
sysobj is an FIR filter,
if the filter in the transfer function form has a scalar denominator.
If it does, it is an FIR filter.
Design a Lowpass FIR Filter.
d = fdesign.lowpass; h = design(d,'Systemobject',true)
h = dsp.FIRFilter with properties: Structure: 'Direct form' NumeratorSource: 'Property' Numerator: [1x43 double] InitialConditions: 0 Show all properties
Determine if the filter is an FIR filter using
ans = logical 1
isfir returns 1 to indicate that the filter is an FIR filter.