Biomedical Engineering Reference
In-Depth Information
1.0
Note
End of pass-band
Start of stop-band
0.8
Passband
Transition
band
0.6
0.4
0.2
Stopband
0
0
p
Frequency (rad)
FIGURE 11.8
:
Low-pass filter. In specifying a digital filter, the end of pass-band and the stop-
band parameters must be designated
2.
Butterworth filters
a. Overdamped
b. Monotonic increasing or decreasing function
3.
Elliptical filters
1.0
Passband
0.8
Transition
band
0.6
0.4
0.2
Stopband
0
0
p
Frequency (rad)
FIGURE 11.9
:
High-pass filter. In specifying a digital filter, the end of pass-band and the stop-
band parameters must be designated. Note the stop-band, the transition band, and the pass-band
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