Method and radar device for ascertaining radial relative acceleration of at least one target
US11280882B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 25, 2018 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Aug 3, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/356
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method is described for ascertaining an acceleration of a target or an object with the aid of radar waves. In a first step, at least one radar transmit signal is sent by at least one transmitting device. At least one radar reception signal reflected from a target is received and subsequently conveyed to an evaluation unit. The evaluation unit converts the radar reception signals into digital measuring values and is used for further processing of the digital measuring values. In a further step, the digital measuring values are subjected to a two-dimensional Fourier transform. At least one target reflection is detected on the basis of peak values or selected from a resulting absolute value spectrum or distance-velocity spectrum. At least one distance of a target from the transmitting device and at least one radial velocity of a target in relation to the transmitting device are ascertained based on the distance-velocity spectrum. Subsequently, at least one angle of the at least one target is determined in relation to an alignment of the transmitting device. Based on the determination or computation of the distance, the transverse velocity, and the angle, the particular signal compon…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.