Digital Signal Processing Reference
In-Depth Information
Fig. 11.8
The design procedure of the proposed strategy
Fig.
11.9
. The sampling rate, passband edge frequency and stopband edge frequency
of
H
I
(Ω)
are set to be 9600, 1650, and 2800 Hz, respectively. The CSD coded IIR
filter is designed to minimize the mean square error between
H(Ω)
and
H
I
(Ω)
,
and to have the poles and zeros of
H(z)
lie inside the disk
D(
0
.
3
,
0
.
7
)
. That is, the
IIR filter will be robustly
D(
0
.
3
,
0
.
7
)
-stable.
According to the steps of the design strategy proposed in Sect.
11.5.3
, in which
the parameters of GA are listed in Table
11.5
, the coefficients of the IIR filter are
designed after 35000 generations of GA in the CSD coded format and are listed in
Table
11.6
.
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