Note 17.
Sampling
Read text, Sections 7.1, 7.2, & 7.3.
( )
( )
( )
?
)
(
x t
x
t
x
t
x t
=
Analog transducer,
Sample
Reconstruction
r
p
voice,…
Sampling frequency,
T
s
π
ω
2
=
Basic Problem
Can
( )
t
x
be represented
uniquely by a sequence
of equally spaced samples,
),...
(
),...,
2
(
),
(
),
0
(
nT
x
T
x
T
x
x

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