Sumários
Fourier transform and sampling
3 março 2020, 09:30 • Jorge Salvador Marques
Response of LTI systems to complex exponentials. Eigen functions of LTI systems. Frequency response.
Fourier transform of discrete-time signals. Some properties: periodicity, convolution, time-shift. Examples.
Sampling of continuous-time signals. Fourier transform of a sampled signal. Relationship between the Fourier transform of the continuous-time signal and sampled signal.
Discrete systems
27 fevereiro 2020, 11:00 • Jorge Salvador Marques
Discrete system. Properties: linearity, time invariance, causality, stability. Linear time-invariant (LTI) systems.
Convolution sum.