Method for reducing sidelobes of limited diffracton pulse-echo images
US5492121A · kind A · utility
15Cited by
3References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 24, 1995 |
| Grant date | Feb 20, 1996 |
| Priority date | — |
| Expiry date | Mar 24, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/52047
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An acoustic transducer produces a limited diffraction beam during the transmit portion of a pulse-echo sequence that has sidelobes extending away from the beam axis in defined sectors. During the receive portion of the pulse-echo sequence a receive aperture for a limited diffraction beam is employed having sidelobes extending away from the beam axis in defined sectors that do not overlap the transmit sidelobes. Both limited diffraction Bessel beams and limited diffraction X waves are employed, and an acoustic transducer producing tenth derivative X waves is described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.