Digital Signal Processing Reference
In-Depth Information
x
(
t
)
5
4
2
t
1
2
3
4
5
6
7
8
9
2
3
(a)
y
(
t
)
3
2
1
t
1
2
3
4
5
6
7
8
9
1
2
Figure P2.4
(b)
2.6.
Given
x(t) = 5u(t + 2) - u(t) + 3u(t - 2) - 7u(t - 4),
find and sketch
x(-2t - 4).
2.7.
Plot the even and odd parts of the signal of
(a)
Figure P2.1(a)
(b)
Figure P2.1(b)
(c)
Figure P2.1(c)
(d)
Figure P2.4(a)
(e)
Verify your results, using (2.11).
2.8.
For each of the signals given, determine mathematically whether the signal is even,
odd, or neither. Sketch the waveforms to verify your results.
(a)
(b)
(c)
(d)
(e)
x(t) = u(t)
x(t) =-4t
x(t) = e
-ƒtƒ
x(t) = 5 cos 3t
p
2
)
x(t) = sin(3t -
