Digital beamsteering for a parametric scanning sonar system
US4190818A · kind A · utility
11Cited by
6References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1977 |
| Grant date | Feb 26, 1980 |
| Priority date | — |
| Expiry date | Aug 25, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/42
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Digital beamsteering for a parametric scanning sonar steers a nonlinear, ulated signal of a single high frequency by appropriately delaying and/or varying the phase of the signal as it enters each of a plurality of elements in an array. The sonar beam can be steered electronically over a wide range of angles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.