H - Electricity – 01 – Q
Patent
H - Electricity
01
Q
H01Q 3/00 (2006.01)
Patent
CA 2580571
A communications device for separating source signals provided by M signal sources includes an antenna array comprising N antenna elements for generating N initial antenna patterns for receiving N different summations of the M source signals, with N being less than M. The antenna array includes an elevation controller for selectively changing an elevation of at least one of the N initial antenna patterns for generating at least one additional antenna pattern so that at least one additional different summation of the M source signals is received thereby. A blind signal separation processor forms a mixing matrix comprising the N different summations of the M source signals, and the at least one additional different summation of the M source signals. The mixing matrix has a rank equal to N plus the number of additional different summations of the M source signals received using the additional antenna patterns. The blind signal separation processor separates desired source signals from the mixing matrix.
L'invention concerne un dispositif de communications destiné à séparer des signaux sources fournis par M sources de signaux, qui comporte un réseau d'antennes comprenant N éléments d'antennes pour générer N structures d'antennes initiales destinés à recevoir N sommations différentes des M signaux sources, N étant inférieur à M. Un réseau d'antennes comporte une commande d'élévation d'au moins une des N structures d'antennes initiales pour générer au moins une structure d'antenne additionnelle, au moins une sommation différente des M signaux sources étant ainsi reçue. Un processeur de séparation aveugle des sources forme une matrice de mélange comprenant les N sommations différentes des M signaux sources, et les sommations différentes additionnelles des M signaux sources. La matrice de mélange a un rang égal à N plus le nombre de sommations différentes des M signaux sources reçus au moyen des structures d'antennes additionnelles. Le processeur de séparation aveugle de sources sépare les signaux sources recherchés de la matrice de mélange.
Interdigital Technology Corporation
Ridout & Maybee Llp
LandOfFree
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