1

GATE ECE 2016 Set 3

MCQ (Single Correct Answer)

+1

-0.3

A binary baseband digital communication system employs the signal
$$$p\left( t \right) = \left\{ {\matrix{
{{1 \over {\sqrt {{T_s}} }},} & {0 \le t \le {T_s}} \cr
{0,} & {otherwise} \cr
} ,} \right.$$$

for transmission of bits. The graphical representation of the matched filter output y(t) for this signal will be

2

GATE ECE 2015 Set 2

Numerical

+1

-0

A sinusoidal signal of amplitude A is quantized by a uniform quantizer. Assume that the signal
utilizes all the representation levels of the quantizer. If the signal to quantization noise ratio is 31.8
dB, the number of levels in the quantizer is _________ .

Your input ____

3

GATE ECE 2014 Set 1

Numerical

+1

-0

The capacity of a Binary Symmetric Channel (BSC) with cross - over probability 0.5 is ______ .

Your input ____

4

GATE ECE 2010

MCQ (Single Correct Answer)

+1

-0.3

Consider the pulse shape s(t) as shown. The impulse response h(t) of the filter matched to this pulse is

Questions Asked from Noise In Digital Communication (Marks 1)

Number in Brackets after Paper Indicates No. of Questions

GATE ECE Subjects

Network Theory

Control Systems

Electronic Devices and VLSI

Analog Circuits

Digital Circuits

Microprocessors

Signals and Systems

Representation of Continuous Time Signal Fourier Series Fourier Transform Continuous Time Signal Laplace Transform Discrete Time Signal Fourier Series Fourier Transform Discrete Fourier Transform and Fast Fourier Transform Discrete Time Signal Z Transform Continuous Time Linear Invariant System Discrete Time Linear Time Invariant Systems Transmission of Signal Through Continuous Time LTI Systems Sampling Transmission of Signal Through Discrete Time Lti Systems Miscellaneous

Communications

Electromagnetics

General Aptitude