1
GATE ECE 1998
MCQ (Single Correct Answer)
+1
-0.3
The probability density function of the envelope of narrow band Gaussian noise is
A
poisson
B
Gaussian
C
Rayleigh
D
Rician
2
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
3
GATE ECE 1997
MCQ (Single Correct Answer)
+1
-0.3
A probability density function is given by $$p(x) = \,K\,\,\exp \,\,( - \,{x^2}/2),\,\, - \,\infty \, < \,x < \,\infty $$.

The value of K should be

A
$$1/\sqrt {2\,\pi } $$
B
$$\sqrt {2\,/\pi } $$
C
$$1/2\sqrt \pi $$
D
$$1/\pi \sqrt 2 $$
4
GATE ECE 1995
MCQ (Single Correct Answer)
+1
-0.3
For a narrow band noise with Gaussian quadrature and inphase components, the probability density function of its enveolope will be
A
uniform
B
Gaussian
C
exponential
D
Rayleigh
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