Method and system for tracking eigenvalues of matrix pencils for signal enumeration
US6993460B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2003 |
| Grant date | Jan 31, 2006 |
| Priority date | — |
| Expiry date | Dec 22, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F18/2134
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of a system and method are disclosed that exploit the unique higher order statistics of temporally dependent waveforms to detect and enumerate signals in a multi-signal and noise environment. The embodiments use spatial 4th-order cumulants or spatial 2nd-order moments in a Blind Source Separation operation and generalized eigenvalue decomposition to determine unique matrix pencil eigenvalues for a set of unknown signals. Sequential detection in the complex plane of the eigenvalues in associated tracks for successive blocks of sensor data serve as the basis of the detection decision. The embodiments may include a multi-element array and do not require a priori knowledge of the signal environment to detect and enumerate the signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.