Direction-finding for multiple cochannel sources
US7126533B2 · kind B2 · utility
19Cited by
3References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2003 |
| Grant date | Oct 24, 2006 |
| Priority date | — |
| Expiry date | Jul 1, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S3/8006
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Techniques for determining the angles of arrival of multiple simultaneous cochannel sources using only a single RF receiver sampling and downconversion channel is disclosed. This is accomplished by sequentially forming several known mixtures of multiple antenna signals in the RF domain prior to downconversion and digitization. Angle of arrival information is then recovered through the application of higher order statistics and subspace fitting techniques. The same principles can be applied to other P-element receiver arrays (e.g., acoustical receiver array).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.