H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 27/01 (2006.01) H04B 7/02 (2006.01) H04B 7/08 (2006.01) H04L 1/06 (2006.01)
Patent
CA 2209003
The invention concerns an equalizer-combiner for a receiver employing at least two receive channels, in which the means (33i) for calculating the equalization coefficients for each of the said channels take into account: a first channel error signal, representing a comparison (313i) between the demodulated signal and a channel estimate of the transmitted source signal, issued by a channel estimator (312i) during an acquisition phase; and a second channel error signal, representing a comparison (313i) between the demodulated signal and an overall estimate (38) of the transmitted source signal, during a phase of normal operation, and means (314) for calculating weighting coefficients taking into account: a first overall error signal, representing a comparison (315) between a combined signal and the said overall estimate (38), during the said acquisition phase; and a second overall error signal, representing a comparison (315) between local reference information and corresponding received reference information, periodically extracted from the said overall estimate, during the said phase of normal operation.
L'invention concerne un égaliseur-combineur pour récepteur mettant en oeuvre au moins deux voies de réception, dans lequel des moyens (33i) de calcul de coefficients d'égalisation de chacune desdites voies tiennent compte: - d'un premier signal d'erreur de voie, représentatif d'une comparaison (313i) entre le signal démodulé et une estimation de voie du signal source émis, délivrée par un estimateur de voie (312i), lors d'une phase d'acquisition, et - d'un second signal d'erreur de voie, représentatif d'une comparaison (313i) entre le signal démodulé et une estimation globale (38) du signal source émis, lors d'une phase de fonctionnement normal, et des moyens (314) de calcul de coefficients de pondération tenant compte: - d'un premier signal d'erreur globale, représentatif d'une comparaison (315) entre un signal combiné et ladite estimation globale (38), lors de ladite phase d'acquisition, et - d'un second signal d'erreur globale, représentatif d'une comparaison (315) entre une information de référence locale et une information de référence reçue correspondante, extraite périodiquement de ladite estimation globale, lors de ladite phase de fonctionnement normal.
Alcatel Telspace
Robic
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