RADAR DATA PROCESSING FOR VEHICLE EGO-MOTION ESTIMATION

    公开(公告)号:EP4036601A1

    公开(公告)日:2022-08-03

    申请号:EP21154384.8

    申请日:2021-01-29

    Abstract: A method of processing radar data obtained by a radar sensor mounted on a vehicle to generate a set of motion spectrum data for estimating ego-motion information of the vehicle, comprising: processing (S20) data samples of each of a plurality of radar return signals received at each antenna element of the radar sensor to generate, for each antenna element, respective Doppler-processed data comprising a plurality of data values, each calculated for a respective Doppler bin index; and generating (S30) a set of motion spectrum data, which comprises a plurality of data elements each calculated for a respective Doppler bin index and a respective spatial bin index, by performing, for each Doppler bin index, processes of: selecting data values of the Doppler-processed data calculated for the Doppler bin index; calculating a covariance matrix using the selected data values; and applying a spectral estimation algorithm which uses the covariance matrix to determine, for the Doppler bin index, a spatial spectrum value for each spatial bin index.

    RADAR DATA PROCESSING FOR VEHICLE EGO-MOTION ESTIMATION

    公开(公告)号:EP4036602A1

    公开(公告)日:2022-08-03

    申请号:EP21154386.3

    申请日:2021-01-29

    Abstract: A method of determining ego-motion information of a vehicle comprising a radar sensor having a plurality of antenna elements, comprising: acquiring (S410) motion spectrum comprising a plurality of data elements, each calculated for a respective one of a plurality of Doppler bin indices and for a respective one of a plurality of spatial bin indices, each spatial bin index indicating a respective angle-of-arrival of a radar return signal at the radar sensor; and determining (S420) the ego-motion information by solving a motion equation system comprising equations of motion generated using the motion spectrum data and each relating a respective value indicating a radial velocity, a respective value indicating an angular displacement, and a variable indicating a velocity of the vehicle.

    METHOD AND SYSTEM FOR FUSING OCCUPANCY MAPS
    5.
    发明公开

    公开(公告)号:EP3739361A1

    公开(公告)日:2020-11-18

    申请号:EP19174053.9

    申请日:2019-05-13

    Abstract: A method for fusing a first occupancy map and a second occupancy map comprises: determining at least one fusion parameter representing a potential dissimilarity between the first occupancy map and the second occupancy map; determining a fused occupancy map representing free and occupied space around the vehicle, wherein the fused occupancy map is determined on the basis of the first occupancy map and the second occupancy map by means of a fusion rule, the fusion rule being adapted to control the influence of the first occupancy map and/or the second occupancy map on the fused occupancy map by means of the at least one fusion parameter.

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