Radar device for obstacle warning
US5451957A · kind A · utility
16Cited by
14References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 12, 1994 |
| Grant date | Sep 19, 1995 |
| Priority date | — |
| Expiry date | Jul 12, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/9082
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention pertains to a radar device with synthetic aperture based on rotating antennae (ROSAR principle), preferably for helicopters, which operates in the millimeter-wave range and is used mainly as an obstacle radar, wherein the full synthetic aperture length can be reached already within very short distances due to the arrangement of the antennae on a turnstile. Exemplary embodiments, calculations and representations are shown and explained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.