Sonar system of the type using hollow conical beams
US5022015A · kind A · utility
7Cited by
2References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 4, 1990 |
| Grant date | Jun 4, 1991 |
| Priority date | — |
| Expiry date | Jun 4, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/42
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Sonar apapratus which forms concentric hollow conical receiver beams having a common cone axis which is at a predetermined angle relative to the direction of travel of the apparatus as opposed to being coincident with it. A target indication received by a conical beam defines a circle upon which the target might lie. Multiple transmissions and detection of the target in other beams result in intersecting the circles to thereby limit the location of the target to one of two possible points, and one of which may be disregarded depending upon the operational mission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.