METHOD, DEVICE, AND SYSTEM FOR IDENTIFYING THAT A FIRST RADAR UNIT IS SUBJECT TO INTERFERENCE FROM A SECOND RADAR UNIT

    公开(公告)号:EP4414739A1

    公开(公告)日:2024-08-14

    申请号:EP23155625.9

    申请日:2023-02-08

    申请人: Axis AB

    摘要: A method for identifying that a first FMCW radar unit is subject to parallel incoherent interference from a second FMCW radar unit is disclosed. The method comprises: acquiring a range-Doppler map, calculating a range-resolved signal for a negative half (corresponding to negative Doppler shifts) and a positive half (corresponding to positive Doppler shifts) of the range-Doppler map, and calculating a range-dependent noise profile for the range-Doppler map as, for each range interval, the smaller of the range-resolved signal for the negative half and the positive half. The method further comprises: identifying parallel incoherent interference in the range-Doppler map if a measure of a deviation between the range-resolved signal for the negative half and the positive half is smaller than a predetermined deviation threshold, and a measure of a difference between the range-dependent noise profile and a global noise floor of the range-Doppler map exceeds a predetermined noise threshold.

    DISPOSITIF DE RÉCEPTION ÉLECTROMAGNÉTIQUE COMPRENANT UNE VOIE DE RÉCEPTION TÉMOIN

    公开(公告)号:EP4361663A1

    公开(公告)日:2024-05-01

    申请号:EP23204185.5

    申请日:2023-10-17

    申请人: THALES

    IPC分类号: G01S7/02 G01S3/02

    CPC分类号: G01S7/021 G01S3/023 G01S7/023

    摘要: L'invention concerne un dispositif de réception électromagnétique (1) comprenant une antenne de réception principale (10) d'un signal incident et une voie de réception principale (12) configuré pour traiter le signal incident, le dispositif de réception électromagnétique (1) comprenant une antenne de réception auxiliaire (20) et une voie de réception auxiliaire (22) reliée à ladite antenne de réception auxiliaire (20), l'antenne de réception auxiliaire (20) étant adaptée pour être disposée en direction d'un émetteur perturbateur (4) et configurée pour recevoir un signal perturbateur depuis l'émetteur perturbateur (4), la voie de réception auxiliaire (22) étant configurée pour traiter le signal perturbateur, le dispositif de réception électromagnétique (1) comprenant également un bloc de comparaison de signal et de suppression du signal perturbateur (30) apte à comparer le signal incident de la voie de réception principale (12) et le signal perturbateur et adapté pour supprimer le signal perturbateur du signal incident en fonction de ladite comparaison.

    A METHOD OF PROCESSING RADAR DATA
    10.
    发明公开

    公开(公告)号:EP4357804A1

    公开(公告)日:2024-04-24

    申请号:EP22201937.4

    申请日:2022-10-17

    申请人: NXP B.V.

    摘要: A method of processing radar data comprising: receiving a mask that identifies a set of samples in received radar signalling that are detected as including interference, and comprises a matrix of data having a fast-time dimension and a slow-time dimension; receiving radar data comprising a matrix of samples of received radar signalling having a fast-time dimension and a slow-time dimension wherein the set of samples identified by the mask have been set to a predetermined value to remove said samples including interference; determining a reconstruction of the radar data in which at least the set of samples of the radar data are replaced with estimated samples, wherein said determining a reconstruction of the radar data comprises formulating an optimization problem based on the radar data and the mask, and applying an iterative method to solve the optimization problem at least in part in the range-Doppler domain.