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On a calculé le module de la TFD d'un signal discret de  échantillons. La fréq...

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On a calculé le module de la TFD d'un signal discret de  échantillons. La fréquence d'échantillonnage est . On a relevé un pic à l'indice , montrant que le signal possède de l'énergie à une fréquence particulière. Quelle est cette fréquence ? Donner la réponse en KHz.

The DFT modulus of a discrete signal of \( N = 2048) samples has been calculated. The sampling frequency is . A peak was found at index , showing that the signal has energy at a particular frequency. What is this frequency? Give the answer in KHz.

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