Digital Signal Processing Reference
In-Depth Information
1.2
1.2
1
1
0.8
0.8
0.6
0.6
0.4
0.4
0.2
0.2
0
0
0
0.1
0.2
0.3
0.4
0.5
0
0.1
0.2
0.3
0.4
0.5
Frequency (Hz)
Frequency (Hz)
(a)
(b)
1.2
1.2
1
1
0.8
0.8
0.6
0.6
0.4
0.4
0.2
0.2
0
0
0
0.1
0.2
0.3
0.4
0.5
0
0.1
0.2
0.3
0.4
0.5
Frequency (Hz)
Frequency (Hz)
(c)
(d)
1.2
1.2
1
1
0.8
0.8
0.6
0.6
0.4
0.4
0.2
0.2
0
0
0
0.1
0.2
0.3
0.4
0.5
0
0.1
0.2
0.3
0.4
0.5
Frequency (Hz)
Frequency (Hz)
(e)
(f)
FIGURE 6.1
:
Modulus of the missing-data spectral estimates [
N
1
1, 51
(40%) missing samples]. (a) Complete-data APES, (b) WFFT, (c) GAPES with
M
1
=
=
128,
N
2
=
64
and
M
2
=
1, (d) MAPES-CM with
M
1
=
64 and
M
2
=
1, (e) MAPES-EM1 with
M
1
=
64 and
M
2
=
1, and (f ) MAPES-EM2 with
M
1
=
64 and
M
2
=
1.
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