Determine whether filter System object is FIR
isfir(sysobj)
isfir(sysobj)
determines
whether the filter System
object™ sysobj
is
an FIR filter. If the filter is FIR, isfir
returns 1
.
To determine whether sysobj
is an FIR filter, isfir(sysobj)
inspects
if the filter in the transfer function form has a scalar denominator.
If it does, it is an FIR filter.