Course Purpose
The aim of this course is to equip learners with the knowledge, practical skills, and professional attitude necessary to understand, analyze, and apply the characteristics of elementary signals used in telecommunications systems
Course Learning Outcomes
CLO 1: Convolution and correlation of signals
CLO 2: Fourier series of periodic signals
CLO 3: Sampling theorem
CLO 4: Signal modulation techniques
Course Content
Elements of communication systems: Block diagram; sources, transmitter, channels, receiver; Destination and noise; Types of electronic communications: Analogue- Amplitude modulation (AM) and Frequency modulation (FM); Digital: Sampling theorems; Pulse amplitude modulation (PAM), pulse width modulation (PWM), pulse position modulation (PPM) and their reception principles; AM and FM transmitters and receivers: Modulator and demodulator circuits, pre – emphasis and de- emphasis; Electromagnetic spectrum: Bandwidth and frequency management; Noise performance in various modulation schemes: Noise figures and signal–to–noise ratios; Signal digitization: Pulse amplitude modulation (PAM), Pulse code modulation (PCM); Quantization methods: Uniform and companding methods; Vocoders; signal – to – quantization noise ratio; Delta modulation (DM) and adaptive delta modulation (ADM) principles and analysis Coding methods. Information entropy and information capacity, bits, bit rate and the baud. Pulse transmission, intersymbol interference and the eye pattern; Digital Modulation: M-ary encoding; Amplitude shift keying (ASK), frequency shift keying (FSK) phase shift keying (PSK) quadrature amplitude modulation (QAM) and differential phase shift keying (DPSK); Signal recovery in ASK, FSK, & PSK. Probability of error and bit error rate.
Prerequisites: Analogue Electronics I & II