zplane
Z-plane zero-pole plot for discrete-time filter System object
Description
zplane(
plots the zeros and poles of the filter System object™, sysobj
)sysobj
, with the unit circle
for reference in the Filter Visualization Tool (FVTool).
Each zero is represented with an 'o'
and
each pole with a 'x'
on the plot.
Multiple zeros and poles are indicated by the multiplicity
number shown at the upper right of the zero or pole.
When you run the filter System object with a fixed-point input, the filter becomes a
quantized fixed-point filter, filtQuant
.
When filtQuant
is a quantized filter,
zplane(filtQuant)
plots the
poles and zeros of the quantized and unquantized filters.
The symbols and
+
represent the
zeros and poles of the quantized filter
filtQuant
. The plot includes the
unit circle for reference.
Examples
Input Arguments
Output Arguments
Version History
Introduced in R2011a