1
GATE ECE 1998
MCQ (Single Correct Answer)
+1
-0.3
The ACF of a rectangular pulse of duration T is
A
a rectangular pulse of duration T
B
a rectangular pulse of duration 2T
C
a triangular pulse of duration T
D
a triangular pulse of duration 2T
2
GATE ECE 1998
MCQ (Single Correct Answer)
+1
-0.3
Flat top sampling of low pass signals
A
gives rise to aperture effects
B
implies over sampling
C
leads to aliasing
D
introduces delay distortion
3
GATE ECE 1998
MCQ (Single Correct Answer)
+1
-0.3
The z - transform of the time function $$\sum\limits_{k = 0}^\infty {\delta \left( {n - k} \right)} $$ is
A
$$(z - 1)/z$$
B
$$z/{(z - 1)^2}$$
C
$$z/(z - 1)$$
D
$${(z - 1)^2}/z$$
4
GATE ECE 1998
MCQ (Single Correct Answer)
+1
-0.3
The amplitude spectrum of a Gaussian pulse is
A
uniform
B
a sine function
C
Gaussian
D
an impulse function