Digital Signal Processing Reference
In-Depth Information
1.00
0.98
0.045
w
s1
w
s2
w
3000
5000
Figure 4.33
Problem 4.18.
|
H
(e
j
2
pω
)
|
1.00
0.95
0.002
200
300
400
1000
f
Figure 4.34
Problem 4.19.
4.20
Design a Chebyshev analog highpass filter that approximates the specifi-
cations as shown in Figure 4.35.
4.21
Design a Butterworth bandpass IIR filter that approximates the specifica-
tions given in Figure 4.36. Show all calculations step by step. Plot the
magnitude using MATLAB.
4.22
A Butterworth bandpass IIR filter of order 10 meets the following spec-
ifications:
ω
p
1
=
0
.
5
π
,
ω
p
2
=
0
.
65
π
,
ω
s
2
=
0
.
8
π
,
A
p
=
0
.
5dB.Whatis
the attenuation at
ω
s
2
?
4.23
A Chebyshev I bandstop digital filter meets the satisfy the following spec-
ifications:
ω
p
1
=
0
.
1
π
,
ω
p
2
=
0
.
8
π
,
ω
s
2
=
0
.
4
π
,
α
p
=
55. Find
the transfer function
H(p)
of the lowpass analog prototype filter.
=
0
.
8,
α
s
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