Method of determining the de-aliased range rate of a target
US10634766B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2018 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Oct 6, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2013/93271
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of determining the de-aliased range rate of a target in a horizontal plane by a host vehicle equipped with a radar system, said radar system including a radar sensor unit adapted to receive signals emitted from said host vehicle and reflected by said target, comprising: emitting a radar signal at a single time-point instance and determining from a plurality (m) of point radar detections measurements therefrom captured from said radar sensor unit, the values for each point detection of, azimuth and range rate; [θi, {dot over (r)}i]; for each point detection determining a range rate compensated value ({dot over (r)}i,cmp); c) determining a plurality (j) of velocity profile hypotheses; for each (j-th) hypothesis determining modified compensated hypothesis range rates ({dot over (r)}i,j,cmp) in respect of each point detection on the target, based on the values of range rate compensated ({dot over (r)}i,cmp); for each j-th hypothesis, determining values of the longitudinal and lateral components of the range rate equation of the target {tilde over (c)}t,j and +{tilde over (s)}t,j; for each j-th hypothesis and for each point detection determining a velocity profile estimator ran…
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