Method for cyclically measuring distances and velocities of objects using an FMCW radar sensor
US9354304B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2014 |
| Grant date | May 31, 2016 |
| Priority date | — |
| Expiry date | Jul 14, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/931
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a method for cyclically measuring distances (d) and relative velocities (v) of objects using an FMCW radar sensor, the frequency (f) of a transmitted signal of the radar sensor is periodically modulated, each period (P) including at least two differing modulation patterns, a relationship between distance (d) and velocity (v) of the object being derived from a signal received for a single modulation pattern, and the signals received for multiple modulation patterns being adjusted to one another in order to determine one value each for the distance and the velocity per each measuring cycle. For the adjustment between a signal obtained for a modulation pattern in the instantaneous measuring cycle and the signal(s) obtained for other modulation patterns, the signals from at least one previous measuring cycle are utilized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.