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From: se chss on 26 Apr 2010 10:07
I post this again.

clear all;
close all;
N=20;

b=[1 -exp(j*2*pi*12/N)];
a=[1 -2*cos(2*pi*12/N) 1];
Hq = dfilt.df2(b, a);
Hq.arithmetic = 'fixed';
zplane(Hq,'off');

Above code is implementing discrete time direct form 2 filter.
After running code figure show pole zero plot of reference pole & zero and quantized
pole & zero.
I want to know quantized level of pole and zero and how to control level of quantizing above implementation.
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