Reception system for multisensor antenna

H - Electricity – 04 – R

Patent

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Details

H04R 3/00 (2006.01) G10L 11/02 (2006.01) G10L 21/02 (2006.01) H01Q 3/26 (2006.01) H04B 7/08 (2006.01)

Patent

CA 2407646

The invention concerns a reception system for a multisensor antenna comprising: at least a set of channel filters ((310 ¿i?)(710¿i?,¿k?) i=1 N) filtering the signals X¿i?(t,f) received by the various sensors of the antenna, said signals capable on including a useful signal (S¿1?(t,f)); an adder ((350, 370)) adding the filtered signals (V¿i?(t,f), V¿i?,¿k?(t,f), i=1 N) by the channel filters and supplying an antenna output signal Y(t,f); at least a calculating module ((320)(720)) receiving ether the sensor signals and aligning them in phase or the signals filtered by the channel filters, said module estimating the transfer function of an optimal filter (W(t,f), W¿k?(t,f)) so as to minimise the quadratic deviation between the antenna output signal filtered by said filter and the useful signal. The invention is characterised in that it further comprises at least a statistical analysis module ((330)(730)) for frequency values of the transfer function.

La présente invention concerne un système de réception pour antenne multicapteur comprenant: au moins un jeu de filtres de voie ((310¿i?),(710¿i,k?) i=1..N) filtrant les signaux X¿i?(t,f) reçus par les différents capteurs de l'antenne, ces signaux pouvant comprendre un signal utile (S¿1?(t,f)); un sommateur ((350, 750)) sommant les signaux filtrés (V¿i?(t,f), V¿i,k?(t,f), i=1..N) par les filtres de voie et fournissant un signal de sortie d'antenne Y(t,f); au moins un module de calcul ((320),(720)) recevant soit les signaux de capteurs et les alignant en phase soit les signaux filtrés par les filtres de voie, ledit module estimant la fonction de transfert d'un filtre optimal (W(t,f), W¿k?(t,f)) de manière à minimiser l'écart quadratique entre le signal de sortie d'antenne filtré par ledit filtre et le signal utile; caractérisé en ce qu'il comprend en outre au moins un module d'analyse statistique ((330),(730)) des valeurs fréquentielles de la fonction de transfert.

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