Communications
Analog Communication Systems
Marks 1Marks 2
Digital Communication Systems
Marks 1Marks 2Marks 8Marks 10
Random Signals and Noise
Marks 1Marks 2Marks 4
Fundamentals of Information Theory
Marks 1Marks 2
Noise In Digital Communication
Marks 1Marks 2
1
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
$$1/\pi \sqrt 2 $$
2
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
GATE ECE Subjects
Signals and Systems
Network Theory
Control Systems
Digital Circuits
General Aptitude
Electronic Devices and VLSI
Analog Circuits
Engineering Mathematics
Microprocessors
Communications
Electromagnetics