Multi-channel signal separation
US5208786A · kind A · utility
39Cited by
4References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 1991 |
| Grant date | May 4, 1993 |
| Priority date | — |
| Expiry date | Aug 28, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S367/901
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system separates unknown signals which have been combined together through unknown linear filters and for which observations at multiple sensors are made. In a two channel circuit with two inputs and two sensors, the reconstructed source signals are assumed to be decorrelated such that the cross-correlation between the reconstructed source signals is near zero. The transfer functions which represent the crosstalk processes are estimated. The output signals are detected and the transfer functions are recursively solved. A reconstruction filter is used to recover the original input signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.