Ing Ind - Inf (Mag.)(ord. 270) - MI (474) TELECOMMUNICATION ENGINEERING - INGEGNERIA DELLE TELECOMUNICAZIONI
094785 - FUNDAMENTALS OF SIGNALS AND TRANSMISSION
The course presents a comprehensive overview about the fundamentals of signals and transmission systems, necessary as prerequisite for advanced coursework in the study of communications. The course provides the students the instruments to analyze deterministic signals and random processes, with a thorough treatment of Fourier analysis and of noise in communication systems. Moreover, baseband and band-pass communications are presented with practical examples and real-world communications problems. Each topic is treated both theoretically and practically. The ability to apply the gained knowledge will be continuously verified through recurring class exercises and homework. Selected topics are associated with some simulative activities. The students are supported by a tutor in their understanding.
Risultati di apprendimento attesi
Regarding the Dublin Descriptor 1 (knowledge and understanding), the lectures and exercise sessions of the course will provide a solid background, allowing the students to understand the basis of signals and transmission and to face additional coursework in the study of communications and signal processing.
Regarding the Dublin Descriptor 2 (applying knowledge and understanding), the students will be able to apply the principles and tools of signals and systems acquired during the course to all of them, although the signals and systems are naturally different in their physical origin and application, arising across different fields (sound, image, data, optics, radio). The students will be able to clearly see connections among theoretical concepts and recognize how to apply them to the field of telecommunication engineering.
Regarding the Dublin Descriptor 4 (communication) the students will learn how to present the course topics with a specialized vocabulary, necessary for the following advanced coursework in the study of communications.
Fourier analysis. Deterministic signals. Linear time-invariant systems. Inverse relashionship between time and frequency. Bandwidth. Sampling theorem. Impulse response and frequency response. Filters. Essentials of z-Transform and application to the filters design. Complex baseband representation of band-pass signals.Phase and group delay.
Fundamentals of probability and random processes. Stochastic process stationarity. Autocorrelation and cross-correlation function. Ergodicity. Power spectral density. Transmission of a random process through a linear time-invariant system. Gaussian processes. The additive white Gaussian noise in communication systems.
Baseband transmission of digital signals: matched filter, intersymbol interference, Nyquist criterion, probability of error due to noise, multilevel transmission.
Band-pass transmission of digital signals: band-pass transmission model, coherent detection, examples of QAM and PSK, comparison of noise performance.
Modalità di valutazione
The assessment is based on a written and an oral exam at the end of the course. The written exam is based on numerical exercises (generally four or five exercises) covering all the four topics of the course. After the written exam, there is an oral exam focused on theoretical questions.During the oral examination the written exam is also discussed with the teacher.At the end of the oral exam, the final score is obtained from the mathematical average of the two scores taken in the written exam and in the oral exam.
Simon Haykin, Michael Moher, Communication Systems - Fifth Edition, Editore: Wiley, ISBN: 978-0-470-16996-4
Appropriate notes about z-Transform will be provided by the teacher by the BEEP sitehttps://beep.metid.polimi.it/
Tipo Forma Didattica
Ore di attività svolte in aula
Ore di studio autonome
Laboratorio Di Progetto
Informazioni in lingua inglese a supporto dell'internazionalizzazione
Insegnamento erogato in lingua
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