628 Practical MATLAB® Applications for Engineers
FIGURE 6.55
Zero/pole plot of the discrete IIR transfer function H(z) for wc = 3 rad/s of part (b) of Example 6.7.
1
zero-pole plot of H (z )
0.8
0.6
0.4
0.2
3
0.2
0.4
0.6
0.8
1
1 0.5 0 0.5 1
Real part
0
Imaginary part
FIGURE 6.56
Zero/pole plot of the analog transfer function H(s) for wc = 3 rad/s of part (b) of Example 6.7.
3
zero-pole plot of H (s )
2
1
0
1
2
3
3 2.5 2 1.5 1 0.5 0
Real axis
Imaginary axis