6 points, SCA Band 2, 0.125 EFTSL
Undergraduate - Unit
Refer to the specific census and withdrawal dates for the semester(s) in which this unit is offered.
Not offered in 2019
This unit will cover continuous-time and discrete-time signals, including sampling, aliasing, and the sampling theorem. Complex exponentials, and their representation as phasors, lead to periodic waveforms, Fourier series and the signal frequency spectrum. Modification of spectra will be described, using FIR filters, discrete-time systems, unit-sample response, discrete convolution, frequency response of FIR filters, z-transforms, IIR filters, linear time-invariant systems, convolution integrals, continuous-time Fourier transform, windowing, DFT, FFT, time-frequency spectrum analysis, spectrogram. Connecting frequency response and time response completes the unit.
- Apply the correct technique to analyse and manipulate continuous-time and discrete-time signals
- Evaluate and analyse signal in frequency or time domain
- Apply LTIV system concept to analyse engineering systems
- Apply Fourier transform and the discrete Fourier transforms
- Recognise sampling errors and aliasing phenomena
Laboratory and assignment work: 30% + Examinations (3 hours): 70%
Students are required to achieve at least 45% in the total continuous assessment component (assignments, tests, mid-semester exams, laboratory reports) and at least 45% in the final examination component and an overall mark of 50% to achieve a pass grade in the unit. Students failing to achieve this requirement will be given a maximum of 45% in the unit.
3 hours lectures, 3 hours laboratory/practice classes and 6 hours of private study per week
See also Unit timetable information