Biomedical Engineering Reference
In-Depth Information
80
60
40
20
0
0.01
0.1
1
10
100
1000
-
20
-
40
-
60
-
80
-
100
-
120
Frequency (rad/s)
0
0.01
0.1
1
10
100
1000
-
20
-
40
-
60
-
80
-
100
-
120
-
140
-
160
-
180
-
200
Frequency (rad/s)
FIGURE 13.62
Data for Example Problem 13.9.
For frequencies in the range of 0.01 to 1 radians/s, the slope of the gain-frequency graph is
20
dB per decade. Since it is logical to assume that the slope remains at
20 dB for frequencies less
than 0.01 radians/s, a transfer function with a pole at the origin provides such a response. If
Continued
