EEE 400: Communication System I Continuous Assessment Test 1-1

Continuous assessment test in which every question carries equal marks. Opens on three ways of expressing a band pass signal with its carrier and the components used in each, then the detection of a double sideband suppressed carrier signal, the reason for modulating an analogue signal and the limitations of a communication system. Derives the mathematical expression for an amplitude modulated signal, the basic methods of generating a frequency modulated signal and the band pass signal itself. Closes on the three basic amplitude modulation systems with their applications, digital to analogue modulation with three examples, and the mapping function of an amplitude modulated signal used to evaluate peak envelope power from a five hundred volt carrier and a modulation amplitude of zero point eight volts.