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431-302 Communications 3 | |
Credit Points | 7.14 |
Prerequisites | 431-221 Fundamentals of Signals and Systems and 620-005 Probability for Electrical Engineers |
Semester | 2 (view timetable) |
Contact | 24 hours of lectures and 12 hours of tutorials and project work |
Subject Description | On completion of this subject students should; understand techniques for the digital coding of analogue waveforms; understand the causes of, and cures for, interference in digital transmission; understand the effects of noise in analogue and digital communication systems; possess a basic skill in carrying out noise and signal analysis for communication system design. The contents include; principles of digital communications: Digital pulse modulation. Pulse-code modulation. Sampling. Quantisation. Coding. Regeneration. Differential pulse-code modulation. Intersymbol interference. Correlative coding. Eye pattern. Digital modulation techniques. Noise and signals: Random processes. Transmission of random processes. Power spectral density. Cross-correlation functions. Gaussian process. Narrow-band random process. Envelope and phase functions. Noise in AM receivers. Noise in FM receivers. Threshold effect. Pre-emphasis and de-emphasis. Maximisation of output signal-to-noise ratio. Matched filters. Probability of transmission errors. |
Assessment | One written examination not exceeding three-hours; practice classes, tests, assignments and project reports, not exceeding 20 pages |
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