Digital Signal Processing Reference
In-Depth Information
f
(
t
), applied
force
(
t
)
(a)
(
t
)
t
(b)
f
(
t
)
t
(c)
2
C
k
0
0
2
0
3
Figure 4.8
Operation of a pendulum
0
(d)
clock.
f
(
t
)
(
t
)
Pendulum
Force
Displacement
Figure 4.9
Pendulum as a system.
course, for design, we
must
have mathematical models and numerical values for
parameters.
In the analysis of a system with a periodic input of the type shown in
Figure 4.8(c), we may be able to approximate the pulses as impulse functions, with
