Radar system having arrangements and methods for the decoupling of transmitting and receiving signals and for the suppression of interference radiation
US9182476B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 1, 2010 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Jun 22, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/26
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Using a radar system in a motor vehicle, high frequency individual signal pulses are transmitted from at least one transmitting antenna, and at least one receiving antenna receives reception signals formed by reflection of the transmitted signal pulses from objects in the surroundings. The reception signals are mixed with the high-frequency signal to produce low-frequency mixed signals representing the sequence of individual signal pulses. The phase angle of the mixed signals is varied over successive individual signal pulses thereof by varying the phase angle of: the successive individual transmitted signal pulses, the high-frequency signals used for the mixing, and/or the mixed signals. In further processing of the mixed signals to determine the distance and the relative velocity of detected objects, an interference component can be separated and/or suppressed from a useful signal component because the useful signal component has the known phase angle variation but the interference component does not.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.