Blind signal separation using spreading codes

Details Blind signal separation using spreading codes Blind signal separation using spreading codes

G - Physics

01

S

G01S 3/16 (2006.01) H04B 7/216 (2006.01)

Patent

CA 2581160

A communications device for separating source signals provided by M signal sources includes an antenna array comprising N antenna elements for receiving at least N different summations of the M source signals. A code despreader is connected to the N antenna elements for decoding the at least N different summations of the M source signals. Each one of the N different summations includes k codes for providing k different summations of the M source signals associated therewith. A blind signal separation processor forms a mixing matrix comprising at least kN different summations of the M source signals, and separates desired source signals from the mixing matrix. The mixing matrix has a rank equal up to kN.

Cette invention concerne un dispositif de communications permettant de séparer des signaux sources fournis par M sources de signaux, qui comprend une batterie d'antennes constitué de N éléments d'antenne pour la réception d'au moins N sommations de signaux de source M. Un désétaleur de code est connecté aux N éléments d'antenne pour de décodage des N sommations des signaux de source M. Chacun des N sommations différentes comprend des codes k donnant des sommations N différentes pour les signaux de source M y associés. Un processeur de séparation aveugle de signaux forme une matrice mélangeuse comprenant au moins kN sommations différentes des signaux de source M et sépare les signaux sources. requis de la matrice mélangeuse. La matrice mélangeuse peut être égale à kN.

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