Blind signal separation using correlated antenna elements
First Claim
1. A communications device for separating source signals provided by M signal sources, the communications device comprising:
- an antenna array comprising N correlated antenna elements for receiving at least N different summations of the M source signals, with N and M being greater than 1;
a receiver connected to said antenna array for receiving the at least N different summations of the M source signals; and
a blind signal separation processor connected to said receiver for forming a mixing matrix comprising up to the at least N different summations of the M source signals, the mixing matrix having a rank equal to at least N, said blind signal separation processor for separating desired source signals from the mixing matrix.
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Abstract
A communications device for separating source signals provided by M signal sources includes an antenna array comprising N correlated antenna elements for receiving at least N different summations of the M source signals, with N and M being greater than 1. A receiver is connected to the antenna array for receiving the at least N different summations of the M source signals. A blind signal separation processor is connected to the receiver for forming a mixing matrix comprising up to the at least N different summations of the M source signals, and for separating desired source signals from the mixing matrix. The mixing matrix has a rank equal to at least N.
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Citations
22 Claims
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1. A communications device for separating source signals provided by M signal sources, the communications device comprising:
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an antenna array comprising N correlated antenna elements for receiving at least N different summations of the M source signals, with N and M being greater than 1;
a receiver connected to said antenna array for receiving the at least N different summations of the M source signals; and
a blind signal separation processor connected to said receiver for forming a mixing matrix comprising up to the at least N different summations of the M source signals, the mixing matrix having a rank equal to at least N, said blind signal separation processor for separating desired source signals from the mixing matrix. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for operating a communications device for separating source signals provided by M signal sources, the communications device comprising an antenna array, a receiver connected to the antenna array, and a blind signal separation processor connected to the receiver, the method comprising:
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receiving at the antenna array at least N different summations of the M source signals, the antenna array comprising N correlated antenna elements, with N and M being greater than 1;
providing the at least N different summations of the M source signals to the receiver; and
processing by the blind signal separation processor the at least N different summations of the M source signals received by the receiver, the processing comprising forming a mixing matrix comprising up to the at least N different summations of the M source signals, the mixing matrix having a rank equal to at least N, and separating desired source signals from the mixing matrix. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification