1

GATE ECE 2001

MCQ (Single Correct Answer)

+1

-0.3

A band limited signal is sampled at the Nyquist rate. The signal can be recovered by passing the samples through

2

GATE ECE 1998

MCQ (Single Correct Answer)

+1

-0.3

Quadrature multiplexing is

3

GATE ECE 1998

MCQ (Single Correct Answer)

+1

-0.3

Compression in PCM refers to relative compression of

4

GATE ECE 1998

MCQ (Single Correct Answer)

+1

-0.3

In a PCM system with uniform quantization, increasing the number of bits from 8 to 9 will reduce the quantization noise power by a factor of

Questions Asked from Digital Communication Systems (Marks 1)

Number in Brackets after Paper Indicates No. of Questions

GATE ECE Subjects

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

Network Theory

Control Systems

Digital Circuits

General Aptitude

Electronic Devices and VLSI

Analog Circuits

Engineering Mathematics

Microprocessors

Communications

Electromagnetics