DIGITAL SIGNAL PROCESSING

Second cycle degree in ICT FOR INTERNET AND MULTIMEDIA

Campus: PADOVA

Language: English

Teaching period: First Semester

Lecturer: GIANCARLO CALVAGNO

Number of ECTS credits allocated: 9


Syllabus
Prerequisites: Signals and Systems.
Examination methods: Written exam and home assignment.
Course unit contents: Shift invariant discrete time linear systems: convolution; stability; causality; linear constant coefficient difference equations; FIR and IIR linear filters. Z-transform; transfer function and frequency response: simple examples of low-pass/high-pass, band-pass/band-stop, and all-pass transfer functions. Linear phase FIR filters. DFT: definition, properties and usage in practical contexts; FFT algorithms; fast convolution algorithms.
IIR filter design using the bilinear transformation method; Butterworth, Chebyschev and Cauer filters; frequency transformations. Design of linear phase FIR filters: windowed Fourier series technique; frequency sampling method; minimization of the Chebyschev norm (Remez algorithm).
Direct form, cascade, and parallel realizations.
Multirate linear systems: interpolation and decimation; efficient realizations.
Examples of application.