公开(公告)号：US20220349986A1

公开(公告)日：2022-11-03

申请号：US17245613

申请日：2021-04-30

Applicant: NXP B.V.

Inventor： Ryan Haoyun Wu ,  Jun Li ,  Maik Brett ,  Michael Andreas Staudenmaier

IPC: G01S7/02 ,  G01S7/35

Abstract: Aspects of the present disclosure are directed to implementations involving the transmission of radar signals and the processing of reflections of those signals as received from a target. As may be implemented with one or more embodiments, a spectrogram may be produced by converting reflections, of transmitted radar signals from a target, into a time-frequency domain using a time-frequency analysis. One or more suppression thresholds is determined for at least one frequency signal in the spectrogram, based on frequency characteristics of the converted reflections. A range response is constructed, characterizing the target and having interference signals removed in the time-frequency domain, by converting (into the range response) selected ones of the frequency signals in the spectrogram having a magnitude within the suppression threshold.

公开(公告)号：US20220268911A1

公开(公告)日：2022-08-25

申请号：US17185115

申请日：2021-02-25

Applicant: NXP B.V.

Inventor： Ryan Haoyun Wu ,  Jun Li ,  Maik Brett ,  Michael Andreas Staudenmaier

IPC: G01S13/04 ,  G01S7/41

Abstract: In one example, a radar circuit uses computer processing circuitry for processing data corresponding to reflection signals via a sparse array. Output data indicative of signal magnitude associated with the reflection signals is generated, and then angle-of-arrival information is discerned therefrom by (e.g., iteratively): correlating the output data with at least one spatial frequency support vector indicative of a correlation peak for the output data; generating upper-side and lower-side support vectors which are neighbors along the spatial frequency spectrum for said at least one spatial frequency support vector, and providing, via a correlation of the upper-side and lower-side support vectors and said at least one spatial frequency support vector, at least one new vector that is more refined along the spatial frequency spectrum for said at least one spatial frequency support vector.