FMCW radar with interfering signal suppression in the time domain
US11592520B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2019 |
| Grant date | Feb 28, 2023 |
| Priority date | — |
| Expiry date | Nov 28, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2013/932
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method is described below which can be used in a radar system. According to one example implementation, the method comprises providing a digital baseband signal using a radar receiver. The baseband signal comprises a plurality of segments, wherein each segment is assigned to a chirp of an emitted chirp sequence and each segment comprises a specific number of samples. For each signal sequence of n samples of the segments, where n in each case denotes a specific sample position within the respective segment, the method comprises the following: detecting interference-affected samples of the signal sequence; splitting the signal sequence into two or more sub-band signal sequences, wherein each sub-band signal sequence is assigned in each case to a frequency sub-band; replacing interference-affected samples in the two or more sub-band signal sequences in each case with a value which is based on adjacent samples in order to obtain corrected sub-band signal sequences; and determining a corrected signal sequence of n samples of the segments based on the corrected sub-band signal sequences.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.