Direction of arrival (DOA) estimation using multiple offset receive channels
US8994581B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Sep 25, 2012 |
| Grant date | Mar 31, 2015 |
| Priority date | — |
| Expiry date | Aug 7, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2013/93273
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In an example method, a vehicle is configured with a radar system used to aid in vehicle guidance. The method could include an array of antennas plurality of antennas configured to receive a radar signal. The array of antennas has a respective spacing between the given antenna and an adjacent antenna; however, the plurality of spacings includes at least two different spacings. A portion of the method may be performed by a processor configured to calculate a detection channel, based on a difference between differential phases associated with two antenna pairs in the array. The processor may also calculate an unambiguous angle based on the detection channel and the plurality of antenna spacings. Additionally, the processor may control the radar unit based on the calculated unambiguous angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.