Method and device for the fourth-order, blind identification of an under-determined mixture of sources
US7336734B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2004 |
| Grant date | Feb 26, 2008 |
| Priority date | — |
| Expiry date | Mar 22, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F18/21343
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method for the fourth-order, blind identification of at least two sources in a system comprising a number of sources P and a number N or reception sensors receiving the observations, said sources having different tri-spectra. The method comprises at least the following steps: a step for the fourth-order whitening of the observations received on the reception sensors in order to orthonormalize the direction vectors of the sources in the matrices of quadricovariance of the observations used; a step for the joint diagonalizing of several whitened matrices of quadricovariance in order to identify the spatial signatures of the sources. Application to a communication network.FIG. 3 to be published.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.