Patent ID: 7123191
Filing Date: 2006-10-17
Classification: H01Q,H04B

Abstract:
1. A communications device for separating source signals provided by M signal sources, the communications device comprising: an antenna array comprising N antenna elements for receiving at least N different summations of the M source signals; a respective in-phase and quadrature module connected downstream to each antenna element for separating each one of the N different summations of the M source signals received thereby into an in-phase and quadrature component set; a receiver assembly connected downstream to each in-phase and quadrature module for receiving the at least N in-phase and quadrature component sets for the at least N different summations of the M source signals; and a blind signal separation processor connected downstream to said receiver assembly for forming a mixing matrix comprising at least 2N different summations of the M source signals, with each in-phase and quadrature component set providing 2 inputs into the mixing matrix, the mixing matrix having a rank equal up to 2N, said blind signal separation processor for separating desired source signals from the mixing matrix.