Digital Signal Processing Reference
In-Depth Information
Lowpass filter with cutoff freq 30%
1
0.8
0.6
0.4
0.2
0
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Figure 3.17: Frequency magnitude response for a lowpass lter.
Highpass filter with cutoff freq 50%
1
0.8
0.6
0.4
0.2
0
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Figure 3.18: Frequency magnitude response for a highpass lter.
