Frequency-domain beamforming
US9778557B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2013 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Jul 1, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/32
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method includes receiving from multiple transducers respective signals including reflections of a transmitted signal from a target. An image of the target is produced irrespective of sparsity of the received signals, by computing transducer-specific frequency-domain coefficients for each of the received signals, deriving, from the transducer-specific frequency-domain coefficients, beamforming frequency-domain coefficients of a beamformed signal in which the reflections received from a selected direction relative to the transducers are emphasized, and reconstructing the image of the target at the selected direction based on the beamforming frequency-domain coefficients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.