logo-polimi
Loading...
Risorse bibliografiche
Risorsa bibliografica obbligatoria
Risorsa bibliografica facoltativa
Scheda Riassuntiva
Anno Accademico 2014/2015
Scuola Scuola di Ingegneria Industriale e dell'Informazione
Insegnamento 096112 - RADIO AND OPTICAL WAVE PROPAGATION
Docente Capsoni Carlo
Cfu 5.00 Tipo insegnamento Monodisciplinare

Corso di Studi Codice Piano di Studio preventivamente approvato Da (compreso) A (escluso) Insegnamento
Ing Ind - Inf (Mag.)(ord. 270) - MI (474) TELECOMMUNICATION ENGINEERING - INGEGNERIA DELLE TELECOMUNICAZIONI* AZZZZ096112 - RADIO AND OPTICAL WAVE PROPAGATION

Programma dettagliato e risultati di apprendimento attesi

Objectives of the course

The content of the course is organized in a way that fits the actual position of a communication engineer. As a consequence the course does not have a too applicative planning (useful in practice, but limited and useless in the education) neither a too theoretical one (one can get to the bottom of a specific topic through the scientific literature). The result is a course where, first, the physic of the phenomena is duly introduced and, second, the theory behind them is addressed.

 

Content

The electromagnetic spectrum: frequency bands and spectrum management.

Characterization of the radio channel in terms of single and multiple wave components: direct, reflected, diffracted and diffused waves; wave polarization.

Wave propagation in real environment. The ionosphere, the non-ionized atmosphere, and the ground. Physical characterization of the medium and electromagnetic description.

Propagation in the ionosphere and impact on Global Navigation Satellite Systems (GNSS). Refraction, attenuation, Faraday rotation, phase and group delay. The role of the Earth magnetic field.

Propagation in the presence of ground: the ground wave: direct, reflected, surface and evanescent wave components, knife edge diffraction.

Propagation in the non-ionized atmosphere (troposphere) and impact on radio relay links, and Earth to space (HAPs, LEO, MEO, GEO satellites, Deep Space probes) links. Clear air propagation: refraction, attenuation and scintillation. Propagation through clouds. Adverse weather disturbances: attenuation, depolarization, electromagnetic interference due to hydrometeors.

Effects of the ground: the ground wave: direct, reflected, surface and evanescent wave components, knife edge diffraction.

Atmospheric and extra-atmospheric noise sources. Impact on the signal detection.

Statistical characterization of the radio channel: the link budget. Fade mitigation techniques (i.e. site, frequency and time diversity, link power control)

Free space optical wave propagation: the optical channel, transmitters and receivers. Advantages and limitations of FSO. Impairments due to hydrometeors (fog and clouds), and to clear air (turbulence). Applications: ground links, Earth to space links.

Indoor applications: Visible Light Communication (VLC).


Note Sulla Modalità di valutazione

Written plus oral examination


Bibliografia
Risorsa bibliografica facoltativaJ.A. Richards, Radiowave propagation. An introduction for the non specialists, Editore: Springer
Risorsa bibliografica facoltativaJ.E. Allnutt, Satellite to ground radiowave propagation, Editore: IET
Risorsa bibliografica facoltativaC. Levis, J. T. Johnson, F. L. Teixeira, Radiowave Propagation: Physics and Applications , Editore: Wiley

Mix Forme Didattiche
Tipo Forma Didattica Ore didattiche
lezione
30.0
esercitazione
20.0
laboratorio informatico
0.0
laboratorio sperimentale
0.0
progetto
0.0
laboratorio di progetto
0.0

Informazioni in lingua inglese a supporto dell'internazionalizzazione
Insegnamento erogato in lingua Inglese
Disponibilità di materiale didattico/slides in lingua inglese
Disponibilità di libri di testo/bibliografia in lingua inglese
Possibilità di sostenere l'esame in lingua inglese
Disponibilità di supporto didattico in lingua inglese
schedaincarico v. 1.6.5 / 1.6.5
Area Servizi ICT
20/06/2021