Digital Signal Processing Reference
In-Depth Information
R
1
R
2
L
x
(
t
)=sin(
p
t
)
1
+
−
−
C
v
(
t
)
y
(
t
)
R
3
t
−2
−1
0
0
(a)
(b)
audio signal waveform
0.4
audio
output
0
−0.4
−0.8
0
0.2
0.4
0.6
time (s)
0.8
1
1.2
(c)
(d)
u
v
(f )
(e)
+
V
c
23.0
22.3
22.0
R
1
R
c
21.6
temperature
display
21.0
20.9
20.2
thermal
resistor
V
in
R
in
voltage
to
temperature
conversion
V
o
R
2
k
SMTW
H
F S
(g)
(h)
Fig. 1.1. Examples of signals and systems. (a) An electrical circuit; (c) an audio recording system; (e) a
digital camera; and (g) a digital thermometer. Plots (b), (d), (f ), and (h) are output signals generated,
respectively, by the systems shown in (a), (c), (e), and (g).
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