Introduction to Digital Signal and System Analysis - Tutorsindia
Introduction to Digital Signal and System Analysis - Tutorsindia
Introduction to Digital Signal and System Analysis - Tutorsindia
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<strong>Introduction</strong> <strong>to</strong> <strong>Digital</strong> <strong>Signal</strong> <strong>and</strong> <strong>System</strong> <strong>Analysis</strong><br />
Z Domain <strong>Analysis</strong><br />
exp(jΩ)<br />
p1<br />
p2<br />
Figure 5.10 Poles of the 2 nd order system<br />
Figure 5.11 Modulus of 2nd order system<br />
An example of a higher order transfer function is<br />
2<br />
( z + 1) ( z − z + 1)<br />
( z + 0.9z<br />
+ 0.81)<br />
H ( z)<br />
=<br />
2<br />
.<br />
z<br />
.<br />
p<br />
z , the frequency rejections are at = ± , p<br />
3<br />
Let = exp( jW)<br />
<strong>and</strong> zeros, <strong>and</strong> the frequency response are shown in Figure 5.12.<br />
W <strong>and</strong> frequency passes are at<br />
2p<br />
W = ±<br />
3<br />
. The poles<br />
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