Vector velocity estimation using directional beam forming and cross correlation
US6725076B1 · kind B1 · utility
24Cited by
16References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 25, 2002 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | Jan 25, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/026
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The two-dimensional velocity vector using a pulsed ultrasound field can be determined with the invention. The method uses a focused ultrasound field along the velocity direction for probing the moving medium under investigation. Several pulses are emitted and the focused received fields along the velocity direction are cross-correlated. The time shift between received signals is found from the peak in the cross-correlation function and the velocity is thereby determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.