Coherent multi-look radar processing
US10845886B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2019 |
| Grant date | Nov 24, 2020 |
| Priority date | — |
| Expiry date | Dec 18, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2013/0245
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Techniques and apparatuses are described that implement a smartphone-based radar system capable of detecting user gestures using coherent multi-look radar processing. Different approaches use a multi-look interferometer or a multi-look beamformer to coherently average multiple looks of a distributed target across two or more receive channels according to a window that spans one or more dimensions in time, range, or Doppler frequency. By coherently averaging the multiple looks, a radar system generates radar data with higher gain and less noise. This enables the radar system to achieve higher accuracies and be implemented within a variety of different devices. With these accuracies, the radar system can support a variety of different applications, including gesture recognition or presence detection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.