Comunicazioni elettriche A - (5 cfu)

Prof. Paolo Serena Tel. 0521-905750 - Fax. 0521 -905758
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The course aims to present the operational principles, main analysis tools and design techniques of analog and digital communication systems.


Mathematical tools
Lowpass equivalent representation of bandpass signals, random processes and systems.

Analog Modulations
Amplitude modulation (AM): expression of modulated signal, evaluation of spectrum, bandwidth, and transmitted power. DSB and SSB modulations. Detection of AM signals. Detection in the presence of phase and frequency errors. Carrier recovery for AM signals. Frequency modulation (FM) and phase modulation (PM). Bandwidth and average transmitted power. Detection of FM and PM signals. The phase-locked loop (PLL). Frequency division multiplexing (FDM).

Digital modulations
Pulse code modulation (PCM) and quantization noise. Time division multiplexing (TDM). Baseband digital transmission and Pulse amplitude modulation (PAM). Matched filter. Error probability for binary and M-ary signalling. Nyquist pulse. Intersymbol interference. Eye diagrams. Equalization. Bandpass digital transmission.

Attività d'esercitazione

Periodical homework assignments followed by solution in classroom.

Modalità d'esame

For those who attend the course: overall evaluation based on written tests (midterm and final) and possible oral examination.
For anyone: evaluation based on written and oral examinations.


"Teoria dei segnali A".
"Teoria dei segnali B" ed "Elettrotecnica A" are also suggested prerequisites.

Testi consigliati

Bruce Carlson, Paul B. Crilly, and Janet C. Rutledge:"Communication systems", 4th edition, McGraw Hill, 2002.

Ultimo aggiornamento: 21-07-2006

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