Direction finding using signal power
US10571544B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2016 |
| Grant date | Feb 25, 2020 |
| Priority date | — |
| Expiry date | Aug 30, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S3/54
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of determining incident angles of Radio Frequency, RF, signals received by an antenna array comprising a plurality of antennae is described. The method comprises generating a plurality of direction finding, DF, signals based on antenna signals received from the antenna array, wherein each DF signal corresponds to a respective antenna array element and each antenna array element corresponds to one or more antennae. A plurality of DF spectra are then generated, each DF spectrum corresponding to a respective DF signal and comprising measured values of signal power at two or more given respective frequencies. An incident signal angle is calculated for each given frequency, based on the measured values of power at the frequency, the configuration of the antennae in the antenna array and antenna gain patterns corresponding to the antenna array elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.