System and method for passively estimating angle and range of a source using signal samples collected simultaneously from a multi-aperture antenna
US7498976B2 · kind B2 · utility
4Cited by
11References
31Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 11, 2007 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | Oct 22, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for passively estimating range and angle of a source are disclosed. The source may be any wave source including radio-frequency (RF), optical, acoustic or seismic sources. In some RF embodiments, the system includes a single aperture antenna to simultaneously receive RF signals from the RF source through a plurality of sub-apertures, and a signal processor to perform a proximity test using samples simultaneously collected from the sub-apertures to determine whether or not to calculate angle and range estimates to the source based on either a curved wavefront assumption or a planar wavefront assumption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.