H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 7/005 (2006.01) H04L 27/01 (2006.01) H04Q 7/22 (2006.01)
Patent
CA 2194326
The process according to the invention consists, in order to reduce the number of coefficients of the filters of the spatial part and the temporal part connected to the output of the spatial part, in jointly adapting the coefficients of the filters of each part using an adaptive algorithm according to the paths selected on the basis of a determined criterion. The coefficients are periodically recalculated at the rate of the known symbols in the learning sequences in order to minimise the estimation error apparent between a response signal (d(t)) and the receiver output signal (z(t)). Application: HF and GSM radio communication in a disturbed environment
Processus pour réduire le nombre de coefficients des filtres de la partie spatiale et de la partie temporelle connectée à la sortie de la partie spatiale en adaptant conjointement les coefficients des filtres de chaque partie à l'aide d'un algorithme adaptatif selon les trajets sélectionnés en fonction d'un critère déterminé. Les coefficients sont périodiquement recalculés à la vitesse des symboles connus dans les séquences d'apprentissage afin de réduire au minimum l'erreur d'estimation apparente entre un signal de réponse (d(t)) et le signal de sortie du récepteur (z(t)). Application : radiocommunications HF et GSM dans un environnement perturbé.
Chevalier Pascal
Pipon Francois
Vila Pierre
Goudreau Gage Dubuc
Thomson-Csf
LandOfFree
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