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Traitement du signal
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La transformation
x(at) correspond à :100%
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L’impulsion discrète (Kronecker)
δ[n] est égale à :0%
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Le sinus cardinal
sinc(t) vaut :0%
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Pour des signaux de la vie réelle mesurés sur une durée finie, on peut dire que :
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La translation temporelle d’un signal s’écrit sous la forme :
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La fréquence d’un signal périodique correspond à :
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L’impulsion de Dirac δ(t) vérifie :
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Un signal continu est causal si :
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