Digital Signal Processing Reference
In-Depth Information
s ( n )
(a)
n
0
M
2 M
x ( n )
M samples
L zeros
(b)
n
0
M
P
2 P
Figure 7.1 . (a) A signal s ( n ) and (b) its zero-padded version x ( n ). Here, L zeros are
padded at the end of each block of M samples.
M samples
M samples
L zeros
y ( n )
0
y ( n )
s ( n )
0
x ( n )
s ( n )
C ( z )
M
P
P
z 1
y ( n )
1
z
z
z
s ( n )
1
channel
M
P
P
noise
q(n)
z
z 1
z
s ( n )
M 1
z 1
M
P
advance chain
advance chain
z 1
z 1
P
block of
L zeros
delay chain
y ( n )
P
z
1
z 1
P
P
P = M + L
Figure 7.2 . The zero-padding transmitter and corresponding receiver represented
using multirate building block notation.
 
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