Digital Signal Processing Reference
In-Depth Information
Fig. 7.7
Narrowband processes and
f
0
:(
a
) in the middle of
B
(
b
) corresponds to max PSD
Fig. 7.8
White process: (
a
) PSD (
b
) ACF
This autocorrelation function is in the form of a sin
x
/
x
function and it is shown
in Fig.
7.9b
. As opposed to a white process, this process is called a
colored process
[PEE93, p. 216]. The average power of a colored process is a finite value, equal to
P ¼
2
BN
0
=
2
¼ BN
0
:
(7.53)
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