Blind signal separation using I and Q components
US7123191B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 22, 2005 |
| Grant date | Oct 17, 2006 |
| Priority date | — |
| Expiry date | Sep 22, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/08
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
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 respective in-phase and quadrature module is 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 blind signal separation processor forms 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 has a rank equal up to 2N. The desired source signals are separated from the mixing matrix by the blind signal separation processor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.