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Transformada de Fourier: Encontre a transformada de Fourier de f(t) = \text{rect}(t) onde \text{rect}(t) é a função retangular.

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Um sinal em tempo continuo com amplitudes discretas.

",{"_43":112,"_81":87,"_83":119},"

Um sinal em tempo discreto com amplitudes discretas.

",{"_43":121,"_81":91,"_83":122},"a947696b-4727-4d45-a64c-7c15f8d76303","

Um sinal em tempo continuo com amplitudes continuas.

",{"_43":124,"_81":95,"_83":125},"172076c6-2b0d-4b25-a50b-bc428c31afbe","

Um sinal em tempo discreto com amplitudes contínuas.

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Um sinal digital - analógico.

","

Por definição um sinal quantizado é:

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