Process for the protection of a radar against jamming and radar for putting this process into effect
US4546356A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 1982 |
| Grant date | Oct 8, 1985 |
| Priority date | — |
| Expiry date | Aug 16, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/36
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A process for protecting radars against jamming, in which a pseudo signal is transmitted simultaneously with the useful signal and is formed from pulses synchronous with those of the useful signal. The amplitude of the pseudo signal is higher than that of the useful signal in order that a countermeasure device hooks onto this pseudo signal and ignores the useful signal. The frequency of the pseudo signal differs sufficiently from that of the useful signal to ensure that the jamming signals, retransmitted by the countermeasure device on the pseudo frequency, are rejected in the intermediate frequency amplifier of the radar receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.