Passive radar responder
US4647930A · kind A · utility
4Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 1984 |
| Grant date | Mar 3, 1987 |
| Priority date | — |
| Expiry date | Oct 4, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/756
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention concerns beacons associated to radars. It consists in modulating the re-emitted signal, in phase by the frequency of a vocal signal, and in amplitude by the envelope of this signal. It allows vocal transmission between such a signal and a Doppler radar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.