EEE 457 - Communication Principles

3 Unit(s)


Amplitude modulation; double sideband, single sideband and vestigial sideband modulation schemes; simple modulators, power and bandwidth performance. Angle modulation (frequency modulation, phase modulation), bandwidth requirements. Transmitter circuits. Receiver circuits. Clippers. Limiters. Amplitude modulated signal reception; discrimination, frequency tracking loop, phase locked loop and noise performance. Commercial radio systems. Transmission media; attenuation in open space, air, cable and fibre channels; fibre optics; construction of cables and fibres, sampling theorem, pulse amplitude modulation, pulse width modulation, multiplexing, quantization systems, pulse-code and delta modulation, courses and correction of errors in PCM and DM.