# COMMUNICATION FUNDAMENTALS cod. 1009714

Anno accademico 2022/23
1° anno di corso - Primo semestre
Docente responsabile dell'insegnamento
FOGGI Tommaso
insegnamento integrato
9 crediti
sede: PARMA
insegnamento
in INGLESE

Insegnamento strutturato nei seguenti moduli:

## Obiettivi formativi

Knowledge and understanding:

The main goal of this course is to provide the students with A refresher (with a reinforcement tailored towards the upcoming courses) of the key concepts in linear algebra, probability theory and system analysis they should have encountered in their Bachelor studies.
The refreshed mathematical tools will allow them to manage both deterministic and stochastic signals both in continuous- and discrete-time, as well as their linear transformations.

Applying knowledge and understanding:

The abilities to apply the acquired knowledge and understanding are:

PART 1:
- to understand and apply the basic concepts of linear vector spaces and their basic operations.
- to manipulate Hermitian, unitary, and projection matrices. To perform a spectral or singular value matrix decomposition
- to apply basic probabilty theory to solve practical problems

PART 2:
- to apply Fourier and Z transform techniques to solve linear filtering problems
- to calculate the spectral properties of filtered stochastic processes
- to use the complex equivalent lowpass representation of real bandpass stochastic processes

PART 3:
- to provide students with the tools do describe and solve communications and signal processing problems in the MATLAB environment.

## Prerequisiti

A very basic knowledge of linear spaces, matrix operations, basic probability and basic transform theory applied to linear systems analysis is assumed. Basics of communications and signal processing.
Prior knowledge of a programming language (recommended).

## Contenuti dell'insegnamento

PART 1 (FOGGI)
Basics of linear spaces
matrix theory, eigenvalues, eigenvectors, spectral decomposition, singular value decomposition
Introduction to probability theory. Basic concepts: conditioning, total probability, Bayes law
Scalar and muti-dimensional random variables
stochastic processes.

PART 2 (PIEMONTESE)
Wrapup of basic complex-number calculus
Continuous Fourier transform and its properties
Sampling and aliasing
Discrete Fourier transforms and its properties
Two-sided Z transform and its properties
Spectral analysis of stochastic processes: the Wiener Khinchin theorem.
Passband signals: lowpass equivalent.

PART 3 (UGOLINI)
Introduction to the MATLAB environment.
Solution of algebraic problems with MATLAB.
Modeling and solution of signal processing and communication problems.

## Programma esteso

PART 1 (FOGGI)
Basics of linear spaces
matrix theory, eigenvalues, eigenvectors, spectral decomposition, singular value decomposition
Introduction to probability theory. Basic concepts: conditioning, total probability, Bayes law
Scalar and muti-dimensional random variables
stochastic processes.

PART 2 (PIEMONTESE)
Wrapup of basic complex-number calculus
Continuous Fourier transform and its properties
Sampling and aliasing
Discrete Fourier transforms and its properties
Two-sided Z transform and its properties
Spectral analysis of stochastic processes: the Wiener Khinchin theorem.
Passband signals: lowpass equivalent.

PART 3 (UGOLINI)
Introduction to the MATLAB environment (4 hours)
- Variables: scalars, vectors, matrices
- Basic operations and plotting
- Linear algebra
- Scripts and functions
Probability (2 hours)
Signals and systems (8 hours)
- Definitions of signals
- Analog and discrete-time signals
- Operations on signals
- Frequency-domain representation
- Sampling and reconstruction
Transmission on the AWGN channel (2 hours)
Fourier transform and spectral analysis (6 hours)

## Bibliografia

TEXTBOOKS
[1] A. B. Carlson, Communication Systems: An Introduction to Signals and Noise in Electrical Communication. McGraw-Hill, 1986.
[2] A. Papoulis, Probability, Random Variables and Stochastic Processes. New York, NY: McGraw-Hill, 1991.
[3] A. V. Oppenheim and R. W. Schafer, Discrete-Time Signal Processing. New Jersey: Prentice Hall, 2nd ed., 1999.
Notes and programs developed during the lectures.

## Metodi didattici

Lectures and exercises (approximately with a ratio 80%-20%).
Laboratory lectures. The students are required to install the MATLAB software before the beginning of the course.

## Modalità verifica apprendimento

Exams will be oral with possibly written exercises.
Assignment of a task to be solved with MATLAB.

## Altre informazioni

1) Course structure
(each lecture 2 hours)
All parts will use 1 lecture per week across the whole semester.
This scheme will allow coordination of the 3-part contents.
A calendar of lectures for all 3 parts will be posted on the web-learning (Elly) site.

2) Office hours:
You will be able to meet your teachers either physically at their office or remotely via Teams after making an appointment by email. Check the individual units for their official meeting days.

3) teaching material:
It will be posted on the (unique) Elly course website.