10 Résultats trouvés pour "Fichier:Sampling_the_Discrete-time_Fourier_transform.svg".

Fichier:Sampling the Discrete-time Fourier transform.svg

DescriptionSampling the Discrete-time Fourier transform.svg English: Definitions: DTFT=discrete-time Fourier transform; DFT=discrete Fourier transform Nine...


Fichier:Fourier transform, Fourier series, DTFT, DFT.svg

A Fourier transform and 3 variations caused by periodic sampling (at interval T) and/or periodic summation (at interval P) of the underlying time-domain...


Fichier:AliasedSpectrum.png

When the functions are sampled at rate fs, the images (green) are added to the original transforms (blue) when one examines the discrete-time Fourier transforms...


Fichier:Spectral views of zero-fill and interpolation by lowpass filtering.svg

{\displaystyle x[n]} sequence. Then the discrete-time Fourier transform (DTFT) of the x [ n ] {\displaystyle x[n]} sequence is the Fourier series representation of...


Fichier:Spectral views of zero-fill and interpolation by lowpass filtering.pdf

English: The first and third graphs depict the discrete-time Fourier transforms of a sampled function and the same function sampled 3 times faster. The second...


Fichier:Spectral effects of decimation.pdf

that the slower sampling does not cause overlap (aliasing). Sometimes, a sampled function is resampled at a lower rate by keeping only every Mth sample and...


Fichier:Comparison of symmetric and periodic Gaussian windows.svg

Gaussian windows.svg English: These figures compare two 8-length Gauss window functions and their spectral leakage (discrete-time Fourier transform) characteristics...


Fichier:Comparison of symmetric and periodic triangular window functions.svg

English Using triangular functions, demonstrates the benefit of circular addition to prepare an (N+1)-sample sequence for an N-point DFT. author name string:...


Fichier:Spectral leakage caused by "windowing".svg

cycles. When the sinusoid is sampled and windowed, its discrete-time Fourier transform also suffers from the same leakage pattern. But when the DTFT is only...


Fichier:Normalized frequency example.svg

S(1:N2)) % Plot the discrete-time Fourier transform. hold on plot(0:N2-1, S(1:N2), ".", "markersize",12, "color","blue") % Overlay the DTFT samples. xlim([0...