# DEGREE REGULATIONS & PROGRAMMES OF STUDY 2017/2018

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DRPS : Course Catalogue : School of Engineering : Electronics

# Undergraduate Course: Electromagnetics, Signals and Communications 3 (ELEE09028)

 School School of Engineering College College of Science and Engineering Credit level (Normal year taken) SCQF Level 9 (Year 3 Undergraduate) Availability Available to all students SCQF Credits 20 ECTS Credits 10 Summary Signals and Communication Systems: This course builds on material from the second-year Signals and Communication Systems material to introduce students to the fundamentals of discrete-time signal processing and communications. In the first half, the course considers discrete-time analysis techniques, gaining insights in both time-domain and frequency domain, assuming infinite duration signals. The second half course then considers baseband communications and information theory. Electromagnetics and Signal Transmission: This course aims to introduce the basic physical phenomena that give rise to electromagnetic waves and to build an understanding of their mathematical formulation as Maxwells equations. The course will include a revision of vector calculus as required for the derivation of Maxwells equations. To apply this understanding to the analysis and design of practical wave-propagating structures -both waveguides and transmission lines. Course description Signals and Communication Systems: 1. Course overview, revision of material from the signals component of the second-year course Signals and Communications material, including an overview of continuous-time signal analysis (1 hour, online material). 2. Revision of Nyquist's Sampling Theorem, analysis of the effect of sampling on the frequency content of a signal (anti-aliasing), and ideal and practical signal reconstruction (1 hour, online material). 3. Modelling discrete-time systems by approximating ODEs, and introducing difference equations and digital filters (1 hour). 4. Deriving the time-domain input-output relationships of a system, including convolution (1 hour). 5. Deriving the frequency-domain input-output relationships using the discrete-time Fourier transform (2 hour). 6. Derivation of the unilateral (one sided) Z-transform, basic examples, and region of convergences (1 hours). 7. The notion of linearity and the response of discretetime systems to harmonic inputs; determining the impulse response and stability of a system from a polezero diagrams (1 hours). 8. Frequency response of a discrete-time linear system from its pole-zero diagram (1 hour). 9. Worked examples provided online. 10.Introduction to baseband communications systems in the absence of noise (3 hours). 11.Noise, power spectral densities, and probability (2 hours). 12.Quantization, information theory and elementary principles of source coding (3 hours). 13.Basic error correction, including parity check bits, and simple block codes (3 hours). Electromagnetics and Signal Transmission: 1. Electrostatic fields and forces and electrostatic potential difference. 2. Divergence and its relationship with charge density. 3. Approximate methods to estimate electric fields and potentials. 4. Magnetic fields, inductance and capacitance. 5. Origins of the plane wave equation and waves in free space. 6. Definitions of a transmission line and TEM, TM and TE modes. 7. Differential equations governing current and voltage on a transmission line. 8. Relations between primary and secondary line constants. 9. Expressions for key transmission line quantities, such as voltage reflection coefficient. 10.Solution to the wave equation for the lossless and general case. 11.Key properties of transmission lines, such as characteristic impedance, reflections and matching. 12.The Smith Chart, and using it to solve simple transmission line problems and for single-stub matching. 13.Applications of waveguides. 14.Intersecting plane wave model (and ray model) of waveguides. 15.Electromagnetic model of waveguides. 16.Eigensolutions to the wave equation, solved for simple 2D slab waveguides and optical fibres. 17.Basic aspects of optical waveguide behaviour, including: mode structure; the evanescent wave; prism coupling; data capacity. 18.Minimisation of sources of loss in optical waveguides, including: intramodal/intermodal dispersion; insertion/reflection losses; bending losses; absorption.
 Pre-requisites Students MUST have passed: Analogue Circuits 2 (ELEE08016) It is RECOMMENDED that students have passed Signals and Communication Systems 2 (SCEE08007) Co-requisites Prohibited Combinations Students MUST NOT also be taking Signals and Communication Systems 3 (ELEE09027) AND Electromagnetics 3: Signal Transmission (ELEE09023) Other requirements None
 Pre-requisites None High Demand Course? Yes
 Academic year 2017/18, Available to all students (SV1) Quota:  None Course Start Semester 2 Timetable Timetable Learning and Teaching activities (Further Info) Total Hours: 200 ( Lecture Hours 38, Supervised Practical/Workshop/Studio Hours 3, External Visit Hours 6, Online Activities 2, Feedback/Feedforward Hours 22, Programme Level Learning and Teaching Hours 4, Directed Learning and Independent Learning Hours 125 ) Assessment (Further Info) Written Exam 100 %, Coursework 0 %, Practical Exam 0 % Additional Information (Assessment) Written Exam %: 100%«br /» Practical Exam %: 0%«br /» Coursework %: 0% See note below«br /» «br /» Signals and Communications Systems:«br /» Any student who does not attend and perform satisfactorily on the Signals and Communications laboratory is deemed to have failed the course, as it tests competency regarding the use of MATLAB to analyse simple signals and communications systems.«br /» Feedback Examples Classes, Office Hours, MATLAB Lab Exam Information Exam Diet Paper Name Hours & Minutes Main Exam Diet S2 (April/May) 3:00 Resit Exam Diet (August) 3:00
 On completion of this course, the student will be able to: Analyse discrete-time signals and systems in both the time and frequency domain, through the use of difference equations, z-transform theory, and system response based on the system transfer function and its key characteristics.Be able to analyse baseband communication systems in the absence of noise; discuss the concepts of noise, power spectral densities, and probability; recall basic source coding and error correction schemes.Understand and analyse electrostatic fields and forces and electrostatic potential difference, and their key properties .Have insight into the origins and solution of the wave equation (lossless and general case) and waves in free space; use techniques to analyse current and voltage on a transmission line and key transmission line quantities.Understand the operation of the Smith Chart, and use it to solve simple transmission line problems; have knowledge of applications of waveguides, and be able to analyse aspects of waveguides and optical fibres.
 Signals and Communications Systems: Ian A. Glover and Peter M. Grant, "Digital Communications", 3rd edition, Pearson Education Limited, ISBN 978-0-273-71830-7, Format: Paperback John G.Proakis, Dimitris K Manolakis, Digital Signal Processing: Pearson New International Edition, 4/E, Pearson, ISBN-10: 1292025735, ISBN-13: 9781292025735, Format: Paperback Electromagnetics and Signal Transmission: Recommended: Electromagnetics with Applications (Fifth Edition), McGraw-Hill, 1999, Daniel Fleisch, John Kraus, ISBN 10: 0072899697 ISBN 13: 9780072899696 Background Reading: ¿A Student's Guide to Maxwell's Equations¿,Daniel Fleisch, Cambridge University Press; 1st edition, 2008, ISBN-13: 978-0521701471 ISBN-10: 0521701473
 Graduate Attributes and Skills Not entered Keywords SIgnal Analysis,System Transfer Functions,Communication Systems,z-transforms,Electromagnetic waves
 Course organiser Dr James Hopgood Tel: (0131 6)50 5571 Email: James.Hopgood@ed.ac.uk Course secretary Mrs Lynn Hughieson Tel: (0131 6)50 5687 Email: Lynn.Hughieson@ed.ac.uk
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