ELEC 202 COMMUNICATION SYSTEMS SECOND SEMESTER EXAMINATIONS 2021/22
Hello, dear friend, you can consult us at any time if you have any questions, add WeChat: daixieit
ELEC 202
SECOND SEMESTER EXAMINATIONS 2021/22
COMMUNICATION SYSTEMS
Q1. a) Numerical question about frequency modulation.
b) At least one mathematical derivation (‘derive an expression for … ’ or ‘show that … ’) related to frequency modulation.
c) Question about demodulation of analogue modulation, requiring several time
and frequency domain sketches, as well as some mathematical understanding of
how demodulators function.
d) A ‘compare ’ question, where one or more characteristics are evaluated in
relation to one or more modulation formats. The question is to test your
understanding of the these modulation formats and how these characteristics
relate to them.
Total 25
Q2. a) Question about amplitude modulation. There will be at least one ‘explain ’ part and a numerical part,
b) At least one mathematical derivation (‘derive an expression for … ’ or ‘show that
… ’) related to analogue modulation.
c) There will also be some direct, short answer questions, testing your understanding of amplitude modulation in real life
Total 25
Q3. a) Question about sampling, quantisation and digital bandpass data transmission. There will be some numerical calculations, at least one signal sketch.
b) Question about multiplexing, involving some numerical calculations and possibly at least one sketch.
c) Numerical question about digital multiplexing.
Total 25
Q4. a) Design exercise, assessing your ability to think like an engineer, and design a viable technical solution to a given communication problem scenario subject to a number of constraints.
b) Question about digital communication, testing your knowledge of the factors governing digital communication in real life.
c) Question about an unfamiliar technology, testing your ability to find reasonable engineering answers to straightforward questions using your knowledge of digital communications and communication systems in general.
Total 25
2023-09-03