Sumários SIGARRA

Introduction to Matlab, paper-and-pencil / Matlab exercises concerning discrete-time signals and systems: a review of the discrete-time convolution operation.

Shared discussion of an exercise dealing the probability density function of the amplitudes of deterministic and random discrete-time signals, and dealing with their auto-correlation function and underlying information. Getting started with the DSP Education kit: LUT-based Real-Time Sine Wave Generation). First laboratory quiz.

Using the lab DSP kit to generate sinusoidal waveforms of various frequencies using LUT-based methods.
Second lab quiz.

Interactively solving an exercise about determining the resulting bandwidth of different combinations of two continuous-time signals (time-domain addition, convolution, and multiplication).
The lab kit as a minimum-phase, lowpass system (as defined by the anti-aliasing and anti-imaging filters).
Overview of discrete-time sampling and reconstruction.
Third lab quiz.

Exercise on the implications in the discrete-time and Fourier domains of modifying the independent variable in the Z-domain to -Z, 1/Z, and Z2. Laboratory experimentation measuring the frequency response of a moving average filter that is implemented to run in real-time on the STM32F746G Discovery board using different (recursive and non-recursive) difference equations. Fourth laboratory quiz.

Exercise on sampling and reconstruction of signals where aliasing is admitted. Evaluation of the DMA operation and identification of its advantages and differences to interrupt-based transfer of individual samples. Implementation of spectral inversion and observation of the real-time impact with real-valued signals. Fifth laboratory quiz.

Discussion of exercises on the frequency-domain characterization of FIR and IIR COMB filters in preparation for the lab experiments. Laboratory experimentation measuring the frequency response of FIR and IIR COMB filters. Sixth laboratory quiz.

Discussion of an exercise show the relative influence of poles and zeros on the frequency response magnitude of a system. Experimental determination of the frequency response two 2nd-order IIR filters running in real-time on the STM32F746G Discovery board: an All-Pole filter, and an All-Pass filter. Seventh laboratory quiz.