Detecting and locating RF emissions using subspace techniques to mitigate interference
US8373596B1 · kind B1 · utility
23Cited by
12References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2010 |
| Grant date | Feb 12, 2013 |
| Priority date | — |
| Expiry date | Mar 18, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S3/146
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Techniques are disclosed that allow for the detection and locating of RF emitters. The technique includes recording emitter signals of interest received from the search area via an antenna array and a phase coherent receiver, wherein all frequency conversions carried out by the phase coherent receiver are performed in a phase coherent fashion across all the channels. The technique further includes identifying subspace of each channel using singular value decomposition (SVD), analyzing the subspace of each channel for the presence of a target signal, and direction finding and/or geolocating the target signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.