Method and system for blind separation of independent source signals
US6654719B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 14, 2000 |
| Grant date | Nov 25, 2003 |
| Priority date | — |
| Expiry date | Mar 14, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03331
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention provides a method for blind separation of independent source signals. The preceding is accomplished by disclosing new techniques for dealing with the problem of blind separation of independent source signals. The method of the present invention consists of identifying a simple constrained criterion which stems directly from derived conditions for source separation. Using this criterion, observed and output signals are used to control a filtering matrix. After being initialized, the filtering matrix is updated and projected to the closest unitary matrix. Until the filtering matrix has converged, it continues to be updated and projected to the closest unitary matrix. Once convergence has occurred, the source signals have been recovered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.