Digital Signal Processing Reference
In-Depth Information
0
49417
⋅
0
.
99420
H
C
(
s
)
=
,
3
2
(
S
+
0
49417
)
⋅
(
S
+
0
49417
⋅
S
+
0
99420
)
Figure 2.9
Pole locations for third-order Chebyshev normalized filter.
Chebyshev 3rd-Order Normalized Lowpass
Selectivity: Lowpass
Approximation: Chebyshev
Implementation: Analog
Passband gain (dB): -1.0
Stopband gain (dB): -22.0
Passband freq (Hz): 0.1591549431
Stopband freq (Hz): 0.3183098862
Filter Length/Order: 03
Overall Filter Gain: 1.00000000000E+00
Numerator Coefficients
QD [S^2 + S + 1 ]
== =========================================
01 0.0 0.00000000000E+00 4.94170604943E-01
02 0.0 0.00000000000E+00 9.94204586790E-01
Denominator Coefficients
QD [S^2 + S + 1 ]
== =========================================
01 0.0 1.00000000000E+00 4.94170604943E-01
02 1.0 4.94170604943E-01 9.94204586790E-01
Figure 2.10
Chebyshev normalized third-order coefficients from WFilter.
