In this course, students must learn basic signal processing in order to understand
modulation theory. This includes both CW and pulse modulation. At the end of the course,
an introduction to noise calculation will be given.
Course Outline:
Introduction and Basic Terminology of Communication
Review of Signals and Systems: Classifications of signals, representation of signals using
rotating phasors, Fourier series, Fourier transform, impulse function.
Linear Time Invariant Systems: Basic definitions, impulse response, transfer function,
Distortionless transmission, Bandpass signals and bandpass systems
Introduction to Modulation: Classification of modulations according to carrier type
- CW Modulation "Linear Modulation" (for both analog and digital messages): DSB AM,
mixing, superheterodyne concept, spectrum analyzer; DSB SC, Carrier recovery problem,
SSB, VSB, QAM (for digital communication)
- CW modulation Exponential Modulation: Return to the definition of frequency and
phase, FM and PM definitions, Relationships between the modulations, Narrowband PM
and FM, Sinusoidal modulating waveform, Carson's rule, FM through LTI systems, FM
through memoriless non linear systems, FM production, FM demodulation: Slope
demodulator and PLL demodulation
Pulse Modulation: The sampling theorem, PAM, PDM, PPM, PCM and quantization noise
Introduction to Noise Analysis in Electronic Systems: Thermal noise, shot noise, signal to
noise ratio, noise figure
- Enseignant: smaili Nessrine