Apparatus and method for determining a point in time for...

H - Electricity – 04 – B

Patent

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H04B 17/00 (2006.01) H04B 1/10 (2006.01)

Patent

CA 2121002

In a receiver (101) that receives a signal (103) subsequent to transmission thereof by a transmitter on a communication channel, an apparatus and method for determining a point in time for detecting the signal, sampled at multiple points in time, to produce a detected signal (112). The communication channel is modeled, at the multiple points in time, responsive to the sampled signal (110) to produce signal and noise channel models (209) and (204), respectively. Signal and noise values (210) and (205) indicative of the quantity of signal and noise in the signal and noise channel models, respectively, are generated. A sampling point selector (203) selects, from among the multiple points in time, a point in time (111), corresponding to a determined minimum noise value (206) or a determined maximum signal to noise ratio value (213), for detecting the sampled signal (110) to produce the detected signal (112).

Dans un récepteur (101) qui reçoit un signal (103) transmis par un émetteur sur un canal de communication, appareil et méthode permettant de déterminer un moment de détection du signal, échantillonné en de multiples moments, de façon à produire un signal détecté (112). Le canal de communication est modelé, en de multiples moments, selon le signal échantillonné (110) afin de produire des modèles de canaux de signal et de bruit (209) et (204). Des valeurs de signal (210) et de bruit (205) indiquant la quantité de signal et de bruit respectivement pour les modèles de canaux de signal et de bruit sont produits. Un sélecteur de moments d'échantillonnage (203) sélectionne, parmi de multiples moments, un moment (111) correspondant à une valeur de bruit minimum déterminée (206) ou à une valeur déterminée de rapport signal-bruit maximum (213), afin de détecter le signal échantillonné (110) pour produire le signal détecté (112).

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