Method and receiver for estimating the channel impulse...

H - Electricity – 04 – B

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H04B 17/00 (2006.01) H04B 1/00 (2006.01) H04B 15/00 (2006.01)

Patent

CA 2645849

A receiver and associated method estimates a channel impulse response of the communications signal. A communications signal is received as a burst of transmitted symbols, including a known training sequence. The joint estimation of timing offset and initial channel impulse response is determined based on the cross-correlations of the known transmitted symbols and received communications signal. A constant modulus interference removal iteration is applied to improve the initial channel impulse estimation.

Un récepteur et un procédé associé estiment une réponse impulsionnelle de canal du signal de communication. Le récepteur reçoint un signal de communication sous forme de rafale de symboles transmis, contenant une séquence de formation connue. L'estimation conjointe du décalage de synchronisation et de la réponse impulsionnelle de canal initiale est déterminée à partir des corrélations croisées des symboles transmis connus et du signal de communication reçu. On applique une itération de suppression d'interéfence de module constant pour améliorer l'estimation d'impulsion de canal initial.

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