Adaptive interference suppression via subband power measurements of a phased-array antenna
US9379439B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2014 |
| Grant date | Jun 28, 2016 |
| Priority date | — |
| Expiry date | Feb 13, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/36
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A phased-array antenna system includes an array of antenna feed elements that produces a radiation pattern to provide spot beams within which to receive a signal in a frequency band and carrying communication from a terminal at a known geographic location. A beamformer forms the spot beams; and a channelizer divides the frequency band into frequency subbands, and measures power levels of the signal over respective frequency subbands. And an antenna controller selects a frequency subband based on the measured power levels indicating that the signal includes an identifiable interference, and calculates a set of beam weights based on the measured power level over the selected frequency subband, and based on the known geographic location of the terminal. The beamformer, then, forms the spot beams based on the calculated set of beam weights to thereby suppress at least some of the identifiable interference from the signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.