Method and apparatus for coherent imaging system
US5005419A · kind A · utility
128Cited by
9References
55Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 1988 |
| Grant date | Apr 9, 1991 |
| Priority date | — |
| Expiry date | Jun 16, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/129
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for improved digital processing of the analog echo signals in a coherent imaging system is described which simplifies the channel circuitry requirements. The analog echo signals detected with a phased array of transducer elements are first compressed in a non-linear manner then expanded non-linearly with analog-to-digital converter means to provide increased instantaneous dynamic range in the overall system. Representative phased array coherent imaging systems having the improved digital processing means are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.