Patent ID: 7098849
Filing Date: 2006-08-29
Classification: 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 generating N initial antenna patterns for receiving N different summations of the M source signals, with N being less than M; said antenna array comprising 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 receiver connected to said antenna array for receiving the N different summations of the M source signals using the N initial antenna patterns, and for receiving the at least one additional different summation of the M source signals using the at least one additional antenna pattern; and a blind signal separation processor connected to said receiver for forming 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 having a rank equal to N plus the number of additional different summations of the M source signals received using the additional antenna patterns, said blind signal separation processor for separating desired source signals from the mixing matrix.