Didital signal processing

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College of Engineering

Course Work

Name of the Programme BEng (GCU)- Telecommunication Engineering & Mechatronics Engineering

Name of Module with Code Digital Signal Processing – MHH624696

Level/Semester & AY Level 4 / Semester A – AY 2018-19

Name of the Module Leader/Tutor

Rajat Srivastava

Coursework Type Design Exercise - Assignment

Assessment weightage 60% of Continuous Assessment

Type and date of submission Online Submission – 2 nd December-2018

Aim Explain and demonstrate, with computer simulations, the concepts of digital signal processing by critically analyzing typical digital systems and applying the knowledge gained in the module in designing a system for meeting given processing specifications.

Learning Outcomes  Design and implement various frequency selective systems with Finite Impulse Response (FIR) and Infinite Impulse Response (IIR).

 Analyse digital signal processing systems using Z- transform systems to determine system response, stability and expected behavior.

 Write software codes for implementing digital signal processing methods.

 Critically evaluate the benefits of digital processing compared to analogue processing of signals.

Tasks The tasks for completing this coursework are described in section I and II. The report on

the task solutions / simulations presented must be submitted prepared as per instructions given

in section III.

I. Fundamentals: a) Discuss the process of converting an Analog signal into a Digital form. Draw the

waveforms at various important steps in conversion with their respective effects on the intermediate and converted waveforms. [10 marks]

b) Discuss the critical advantages that can be achieved and the benefits that could be reaped with digital processing of the signal and digital systems as compared to the analog processing. [5 marks]

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c) Discuss and critically comment on how filter with specific bandwidths can be designed using pole-zero placement method of filter design. [10 marks]

d) Discuss and critically comment on how an Analog filter could be transformed in a Digital filter using Bilinear Transform Method. [10 marks]

[Total 35 marks]

II. Application: Design Exercise: Develop a solution for the design exercise / case

given below:

A case at Super Instrumentation Services-:

Super Instrumentation services ltd. is an upcoming industrial instrumentation services company.

In one of their instrumentation project, a sensor is picking up interference at frequency of 250 Hz

with the pressure measurement signals which the instrument has to measure. This interference

is making the measurements difficult and hence the measurements from the instrument are

becoming unreliable. One more noise frequency is observed at 50 Hz suspected to be from mains

with a bandwidth of 5 Hz. The input signals are limited up to 500Hz. Design a digital filter to

eliminate these interferences.

The design must include appropriate selection of a sampling frequency, plot of the pole-zero map,

derivation of the transfer function, difference equation, filter structure, implementation/computer

simulation(s), graphs, results analysis and conclusion, with supporting references.

[Total 35 marks]

III. Report for the coursework:

Report Structure and Guidelines

1. The report for the coursework should have the following structure:

Title page, Acknowledgements, Abstract, Introductions, solution for the question given in

section I - Fundamentals, section II - Solution for the application/ design exercise (Pole-

zero map, structure of the filter), Implementation/ simulations, graphs with proper marking

and labeling etc. results analysis, conclusions, references list, appendix(if any).

2. The style and presentation of the report content should be as -: font size -12 (body text),

font face - Arial and paragraph spacing - single line spacing and titles and headings as felt

appropriate. The report should be properly bound and should be around 1500 words. Use

appropriate headings styles where required.

3. Proper Harvard referencing as per CCE style should be followed through indicative readings, standards, regulations, bye laws, figures, diagrams, tables and charts, etc. relevant to the coursework.

4. Safety and precautions for the course work conducted in laboratory should be followed.

5. Plagiarism is a serious offence. In case of any plagiarism detected, penalty will be imposed

leading to zero mark (Please see a note later in this document). Turnitin report is a must

for report acceptance.

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6. Course work and reports should be done individually and submitted on time.

7. Course work should be submitted in pdf format with an appropriate cover page which must

include the student and coursework details:- Name, student identification and title of the

course work to be written clearly and legibly on the cover page.

8. The completed course work is to be submitted online through Turnitin provided on CCE

Learn on or before the 11:59 pm deadline for the submission day. Late submission without

any valid reasons will not be accepted or an appropriate penalty would be applied.

Report-: The report structure in terms of logic and coherence. [20 Marks]

The use of relevant work examples and/or examples gained from further reading. [10 Marks]

Indicative Readings

 Mitra, S.K (2001). Digital Signal Processing, A Practical Approach. 2nded. Addison-

Wesley.

 Oppenheim, Schafer (1998). Discrete-Time Signal Processing .2nd ed. Buck.

 Li. T., (2007). Digital Signal Processing Fundamentals and Applications, Academic Press

(Elsevier)

Marking scheme

Component Description Weightage

1 Knowledge and understanding of the topic 35%

2 Application and analysis of the topic 35%

3 Report-: The report structure in terms of logic and coherence

20%

4 The use of relevant work examples and/or examples gained from further reading.

10%

TOTAL 100%

Instructions

1. Plagiarism is a serious offence. In case of any plagiarism detected, penalty will be imposed

leading to zero mark. Policy and guidelines for dealing with plagiarism and malpractice in

examination can be viewed by clicking:

http://portal.cce.edu.om/member/contentdetails.aspx?id=490

2. The course work shall be subject to plagiarism software check.

3. Course work should be submitted on time. College guidelines on late submission of

coursework can be viewed by clicking:

http://portal.cce.edu.om/member/contentdetails.aspx?id=565

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4. Name, student identification and title of the course work to be written clearly and legibly

on the cover page.

5. For online submission of course work, pdf file with appropriate cover page mentioning

name of student, student number and title of the course work should be uploaded using

the submission link created and made available by the module leader.

Referencing

Harvard Referencing (CCE Style) First Edition 2013 should be followed for both in-text and listing

references. This downloadable document can be found in our CCE portal at:

http://portal.cce.edu.om/member/contentdetails.aspx?cid=628

Name and Signature of Module leader Rajat Srivastava Date: 15th July 2018