Sonar having signal amplitude differentiation and noise suppression
US4369508A · kind A · utility
8Cited by
3References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 18, 1980 |
| Grant date | Jan 18, 1983 |
| Priority date | — |
| Expiry date | Nov 18, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/96
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Both signal amplitude presentation and noise suppression presentation of sonar signals have been known for some time, but have been incompatible in the same display system. In this disclosure, means are provided for separately processing the received signal in two parallel paths, one through a noise-pulse suppression processor, and the other through a signal amplitude differentiation processor which adds an additional adjustable time delay so that the signals processed through both paths are initiated at the same time and thus can be presented together.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.