Data acquisition method and apparatus for FMCW radar system
US10955525B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2018 |
| Grant date | Mar 23, 2021 |
| Priority date | — |
| Expiry date | Apr 26, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/931
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for acquiring chirp data in a frequency modulated continuous wave (FMCW) radar system of a road vehicle. The method includes transmitting a FMCW signal comprising a plurality of ramping regions in which a frequency of the FMCW signal ramps up to a first frequency or ramps down to a second frequency. The method also includes receiving a reflected signal corresponding to the reflection of the FMCW signal from one or more physical objects. The reflected signal includes a plurality of ramping regions corresponding to the ramping regions of the transmitted FMCW signal. The method further includes sampling the reflected signal by: taking a plurality of samples in a ramping region in which the frequency of the reflected signal ramps up; and taking a plurality of samples in a ramping region in which the frequency of the reflected signal ramps down.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.