ELEC ENG 2007 - Signals & Systems

North Terrace Campus - Semester 2 - 2015

Continuous signals and systems: block diagrams, linearity, causality, stability and time-invariance. Linear time-invariant (LTI) systems, impulse response; Convolution sum and integral; Convolution and correlation. Fourier techniques in signals and systems: Fourier series and transform of signals; Frequency response of continuous time LTI circuits and systems, Fourier transforms and continuous spectra; Applications, correlation and power spectrum. Laplace transform for analysis and synthesis of circuits and systems; applications for analysis and synthesis of LTI circuits and systems. Analogue Filters: filters and filtering; Analogue filter synthesis; Low pass filters (selection including Butterworth, Chebyshev, elliptic); Filter transformations - (low, high, band); Realisation of passive LC filter circuits; two-port parameters (impedance, admittance, hybrid). Modulation and demodulation schemes: AM, FM and PM; Transmitters and receivers; filters, up and down mixers.

  • General Course Information
    Course Details
    Course Code ELEC ENG 2007
    Course Signals & Systems
    Coordinating Unit School of Electrical & Electronic Engineering
    Term Semester 2
    Level Undergraduate
    Location/s North Terrace Campus
    Units 3
    Contact Up to 4 hours per week
    Available for Study Abroad and Exchange Y
    Assumed Knowledge ELEC ENG 1010
    Restrictions Available to BE(E&E-Avionics), BE(Computer Sys), BE(El &El), BE(Telecom) BE (Sustainable El)& associated double degree students only.
    Course Description Continuous signals and systems: block diagrams, linearity, causality, stability and time-invariance. Linear time-invariant (LTI) systems, impulse response; Convolution sum and integral; Convolution and correlation. Fourier techniques in signals and systems: Fourier series and transform of signals; Frequency response of continuous time LTI circuits and systems, Fourier transforms and continuous spectra; Applications, correlation and power spectrum. Laplace transform for analysis and synthesis of circuits and systems; applications for analysis and synthesis of LTI circuits and systems. Analogue Filters: filters and filtering; Analogue filter synthesis; Low pass filters (selection including Butterworth, Chebyshev, elliptic); Filter transformations - (low, high, band); Realisation of passive LC filter circuits; two-port parameters (impedance, admittance, hybrid). Modulation and demodulation schemes: AM, FM and PM; Transmitters and receivers; filters, up and down mixers.
    Course Staff

    Course Coordinator: Dr Cheng-Chew Lim

    Course Coordinator and Lecturer: J. Asenstorfer
    Email:john.asenstorfer@adelaide.edu.au
    Office: c/- School office, Level 3, Ingkarni Wardli building
    Phone: c/- School office, 8313 5277


    Course Timetable

    The full timetable of all activities for this course can be accessed from Course Planner.

  • Learning Outcomes
    Course Learning Outcomes
    After completion of this course, students will be able to:

    1. Recognise, sketch and manipulate basic signals commonly used in engineering applications;
    2. Define, use and cite some simple properties of these basic signals;
    3. Classify signals according to a variety of criteria including energy, power and duration;
    4. Use common signal transformation operations and draw them in block diagram form;
    5. Competently manipulate complex-valued signals;
    6. Formulate the input-output description of continuous time (CT) linear systems;
    7. Define, state and identify system properties of linearity, time (in)variance, causality, memory and stability;
    8. Formulate and solve differential equations describing linear, time invariant (LTI) systems, including both transient and steady-state responses;
    9. Perform CT convolution to find the steady-state response of LTI systems;
    10. Analyse and synthesise systems as a composite of sub-systems through series, parallel and feedback combinations;
    11. Derive and interpret the spectra of signals and frequency responses of CT LTI systems;
    12. Use Fourier transform methods to obtain CT LTI systems’ outputs in the steady state;
    13. Define Laplace transforms and manipulate s-domain transfer functions describing CT LTI systems; 14. Compute poles and zeros of CT LTI systems and use them to determine performance characteristics, such as stability and frequency response;
    15. Model general systems using second order CT LTI approximations and quantify system behaviour such as damping and resonance;
    16. Describe random processes using probability density functions and other statistical methods;
    17. Compute and differentiate between ensemble and time averages for random processes;
    18. Relate the spectrum of a random process to its autocorrelation function;
    19. Describe the concept and techniques for performing signal modulation in communication systems; 20. Analyse the performance of Amplitude Modulation (AM), Phase Modulation (PM) and Frequency Modulation (FM) systems;
    21. Describe and analyse some of the building blocks of modern communication systems: filters, amplifiers, up- and down-converters/mixers, modulators and demodulators;
    22. Analyse and design analogue low-pass filter prototypes: Butterworth, elliptic, Chebychev and all- pass;
    23. Apply the technique of filter transformations to obtain high- and band-pass filters, and their realisation with passive components;
    24. Discuss the principles of active filters and design first and second order active filters;
    25. Implement simple signal and systems analysis techniques in MATLAB;
    26. Demonstrate the principles of mixing and frequency shifting using electronic circuits in laboratory conditions.
    University Graduate Attributes

    This course will provide students with an opportunity to develop the Graduate Attribute(s) specified below:

    University Graduate Attribute Course Learning Outcome(s)
    Knowledge and understanding of the content and techniques of a chosen discipline at advanced levels that are internationally recognised. All
    The ability to locate, analyse, evaluate and synthesise information from a wide variety of sources in a planned and timely manner. 25,26
    An ability to apply effective, creative and innovative solutions, both independently and cooperatively, to current and future problems. 6, 8-10, 12-15, 19,21,25,26
    Skills of a high order in interpersonal understanding, teamwork and communication. 26
    A proficiency in the appropriate use of contemporary technologies. 25,26
    A commitment to continuous learning and the capacity to maintain intellectual curiosity throughout life. 15,16,19
  • Learning Resources
    Required Resources
    No required textbooks or specific resources.

    A set of course notes, practice problems and other supporting materials will also be available for downloading from the course web site.
    Recommended Resources
    The following textbooks are recommended:
    1. Lathi, B. P. Linear Systems and Signals, 2nd Edition, Oxford University Press, 2005, ISBN-10: 0195158334,ISBN-13: 978-0195158335.
    2. Oppenheim, Alan V., Willsky, Alan S. with Nawab, S. Hamid Signals & Systems, 2nd Edition, Prentice-Hall 1997, ISBN-10: 0138147574,ISBN-13: 978-0138147570.
    3. Proakis, John G. and Salehi, Masoud Communication Systems Engineering, 2nd Edition, Prentice Hall, 2001, ISBN-10: 0130617938, ISBN-13: 978-0130617934.
    4. Bracewell, R.N. The Fourier Transform and Its Applications, McGraw-Hill, 2000, ISBN 0-07-303938-1.
    Online Learning
    Extensive use will be made of the MyUni web site for this course, https://myuni.adelaide.edu.au/webapps/login.

    Course notes, tutorial problems and solutions, laboratory exercises and practice problems will all be available for downloading from the web site. Where the lecture theatre facilities permit, audio or video recordings of lectures will also be available for downloading.
  • Learning & Teaching Activities
    Learning & Teaching Modes
    This course relies on face to face sessions as the primary delivery mechanism for the material with video lectures and quizzes being used to supplement the face to face lectures. Exercises provide practice in problem solving and enhance the understanding of the course topics. The 4-week practical is used to provide hands-on experience for students to reinforce the theoretical concepts encountered in this course. Marked homeworks and tests provide formative and summative assessment opportunities, respectively, for students to measure their progress throughout the semester.
    Workload

    The information below is provided as a guide to assist students in engaging appropriately with the course requirements.

    Activity Contact Hours Workload Hours
    Video lectures and on-line quizzes 13 Modules 0 20
    Lectures 34 lectures 34 68
    Practical 4 sessions 12 20
    Homework 4 exercises 0 10
    Tests 2 tests 2 10
    Exam 1 final exam 2 30
    TOTAL 50 158
    Note: Workload Hours include Contact Hours in addition to private study time requirements.
    Learning Activities Summary
    Activity Sessions Title
    Lectures 1-4 Continuous-time (CT) signals
    5-9 CT Linear time-invariant (LTI) systems
    10-16 Fourier Transform and applications
    17-20 LaPlace Transform
    21 2-ports and their parameters
    22-26 Filter design and application
    27-30 Communication system principles and modulation
    31-34 Summary and revision
    Practical 1 Signals and spectra
    Specific Course Requirements
    Students are required to have access to Matlab software. This is available at various facilities such as the CATS suite or the undergraduate computer labs of the School of Electrical & Electronic Engineering. It is the individual student’s responsibility to ensure his or her access to these facilities at appropriate times is available.
  • Assessment

    The University's policy on Assessment for Coursework Programs is based on the following four principles:

    1. Assessment must encourage and reinforce learning.
    2. Assessment must enable robust and fair judgements about student performance.
    3. Assessment practices must be fair and equitable to students and give them the opportunity to demonstrate what they have learned.
    4. Assessment must maintain academic standards.

    Assessment Summary
    Assessment activity Type Weighting Due date Learning objective addressed
    Homeworks Formative 16% Weeks 4, 6, 8,11 1-18
    Quizzes Summative 14% Weeks 5, 10 1-15
    Practical Formative 10% Weeks 4-8 4, 13-15, 19
    Exam Summative 60% End of semester 1-18
    Assessment Related Requirements
    The examination is a hurdle requirement. It is necessary to achieve at least 40% in the exam. If this is not achieved, the total course mark will be limited to a maximum of 49.

    A hurdle requirement is defined by the University's Assessment for Coursework Programs policy as "...an assessment task mandating a minimum level of performance as a condition of passing the course.

    If a student fails to meet a hurdle requirement (normally no less than 40%),and is assigned a total mark for the course in the range of 45-49, then the student is entitled to an offer of additional assessment of some type. The type of assessment is to be decided by the School Assessment Review Committee when determining final results. The student’s final total mark will be entered at no more than 49% and the offer of an additional assessment will be specified eg. US01. Once the additional assessment has been completed, this mark will be included in the calculation of the total mark for the course and the better of the two results will apply. Note however that the maximum final result for a course in which a student has sat an additional assessment will be a “50 Pass”.

    If a student is unable to meet a hurdle requirement related to an assessment piece (may be throughout semester or at semester’s end) due to medical or compassionate circumstances beyond their control, then the student is entitled to an offer of replacement assessment of some type. An interim result of RP will be entered for the student, and the student will be notified of the offer of a replacement assessment. Once the replacement assessment has been completed, the result of that assessment will be included in the calculation of the total mark for the course.
    Assessment Detail
    The homeworks require students to submit written responses to selected sets of problems. The submissions may contain any of the following: written answers, mathematical derivations, sketches, graphs and print-outs from appropriate software packages. There will be four separate problem sets, each worth 4% to the overall assessment.

    There are two 45-minute closed book quizzes in the course. The quizzes will require students to submit short written responses to a set of questions under examination conditions. Each quiz will be worth 7% to the overall assessment.

    The practical needs to be conducted during the designated laboratory sessions as listed in Section 1.3 Course Timetable. Students will be required to show regular progress in the laboratory sessions, and to submit a practical report describing the practical work for assessment. The combined total of in-lab progress marks and the practical report are worth 10% of the final assessment.

    The exam will be a closed book examination. It will be worth 60% of the overall assessment.
    Submission
    All written submissions to formative assessment activities are to be submitted electronically, or to designated boxes within the School of Electrical & Electronic Engineering, by 3.00pm on the due date and must be accompanied by a signed cover sheet. Copies of blank cover sheets are available from the School office in Ingkarni Wardli 3.26, or online in electronic form. Late submissions are not accepted unless explicit prior approval is granted by the course coordinator or Head of School. All in-term assessments will have a two week turn-around time for provision of feedback to students.

    Full details can be found at the School policies website:
    http://www1.eleceng.adelaide.edu.au/students/undergraduate/policies/ 
    Course Grading

    Grades for your performance in this course will be awarded in accordance with the following scheme:

    M10 (Coursework Mark Scheme)
    Grade Mark Description
    FNS   Fail No Submission
    F 1-49 Fail
    P 50-64 Pass
    C 65-74 Credit
    D 75-84 Distinction
    HD 85-100 High Distinction
    CN   Continuing
    NFE   No Formal Examination
    RP   Result Pending

    Further details of the grades/results can be obtained from Examinations.

    Grade Descriptors are available which provide a general guide to the standard of work that is expected at each grade level. More information at Assessment for Coursework Programs.

    Final results for this course will be made available through Access Adelaide.

  • Student Feedback

    The University places a high priority on approaches to learning and teaching that enhance the student experience. Feedback is sought from students in a variety of ways including on-going engagement with staff, the use of online discussion boards and the use of Student Experience of Learning and Teaching (SELT) surveys as well as GOS surveys and Program reviews.

    SELTs are an important source of information to inform individual teaching practice, decisions about teaching duties, and course and program curriculum design. They enable the University to assess how effectively its learning environments and teaching practices facilitate student engagement and learning outcomes. Under the current SELT Policy (http://www.adelaide.edu.au/policies/101/) course SELTs are mandated and must be conducted at the conclusion of each term/semester/trimester for every course offering. Feedback on issues raised through course SELT surveys is made available to enrolled students through various resources (e.g. MyUni). In addition aggregated course SELT data is available.

  • Student Support
  • Policies & Guidelines
  • Fraud Awareness

    Students are reminded that in order to maintain the academic integrity of all programs and courses, the university has a zero-tolerance approach to students offering money or significant value goods or services to any staff member who is involved in their teaching or assessment. Students offering lecturers or tutors or professional staff anything more than a small token of appreciation is totally unacceptable, in any circumstances. Staff members are obliged to report all such incidents to their supervisor/manager, who will refer them for action under the university's student’s disciplinary procedures.

The University of Adelaide is committed to regular reviews of the courses and programs it offers to students. The University of Adelaide therefore reserves the right to discontinue or vary programs and courses without notice. Please read the important information contained in the disclaimer.