Auto-test device for the transmission and reception system of a radar, especially for automobiles
US5945942A · kind A · utility
9Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1998 |
| Grant date | Aug 31, 1999 |
| Priority date | — |
| Expiry date | Apr 10, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/4078
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An auto-test device for a radar includes at least one transducer located in the field of radiation of the radar microwave transmission, the transducer being configured to intersect a part of the radiated energy and to send it back to a receiver so as to create, in the receiver, a test signal modulated by beats of the transducer. The device further includes a synchronism mechanism configured to excite the transducer in synchronism with a sub-multiple of the frequency of sampling of a reception signal. The transducer is placed such that the receiver receives a test signal with a mean value close to zero.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.