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DE L'ANALOGUE AU NUMÉRIQUE: ACQUISITION D'UN SIGNAL Défendu: un signal= est une fonction du _________ de l'espace souvent en rapport avec une grandeur physique qui peut par exemple être une _________ électrique Tension: signal électrique, en reliant le le microphone à un oscilloscope qui va alors montrez la courbe f(t) égal à la _________ de l'attention. La tension U= axe __________ Temps: axe des ________ Signal analogique: est _________ au cours du temps et aussi e amplitude, donc il peut prendre tt _______ possibles, même les valeurs à virgules signal numérique: évolue de manière _____________, discrète par paliers quantifiés, composé de nombre _______

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