Multiple-mode radar with resolution of spatial ambiguity

    公开(公告)号:US11815589B2

    公开(公告)日:2023-11-14

    申请号:US17006503

    申请日:2020-08-28

    Applicant: NXP B.V.

    Abstract: In imaging radar, examples are directed to uses of multiple sets of transmit antenna included with transceiver circuitry, for transmitting in a plurality of modes. Transmissions may involve having at least one transmit antenna, from each of at least two of the multiple sets, to transmit continuous-wave energy concurrently (simultaneously) in one or more of the plurality of different modes. Transceiver circuitry may include multiple receive antennas which may be receiving reflections of the continuous-wave energy from various targets. Signals from the multiple receive antennas may route to signal processing circuitry. The signal processing circuitry may respond to the received reflections of the continuous-wave energy by assessing differences in antenna gain and/or phase due to transmit antenna position associated with the received reflections. This signal processing assessment may mitigate or resolve at least one spatial ambiguity in at least one direction of arrival dimension associated with the received reflections.

    RADAR TRANSCEIVER TEST
    4.
    发明公开

    公开(公告)号:US20230147649A1

    公开(公告)日:2023-05-11

    申请号:US17995417

    申请日:2020-04-28

    Inventor: Pascal LORE

    Abstract: A radar system (2) for a vehicle (1), having a radar transceiver (3) and a control unit (4), where the control unit (4) is adapted to control the radar transceiver to apply an initial signal power level (Pi) for transmitted radar signals (5); and to receive reflected radar signals (6) that have been reflected by at least one object (7). The control unit (4) is further adapted to determine a total signal reduction level (L) for which at least one predetermined criterion is not met; to compare the total signal reduction level (L) to a threshold; and to determine whether the radar transceiver (3) is working in an acceptable manner or not in dependence of the comparison.

    CASCADED RADAR SYSTEM WITH TRANSMITING-VEHICLE REFLECTION MITIGATION

    公开(公告)号:US20240310474A1

    公开(公告)日:2024-09-19

    申请号:US18598525

    申请日:2024-03-07

    Applicant: NXP B.V.

    Abstract: A system and method for processing radar signals is presented. A first transmitted radar signal is transmitted by a first transmitter using a first local oscillator signal having a first frequency. The first transmitter is coupled to a structure of a vehicle. A first received radar signal is received using a first receiver. The first received radar signal is processed using a second local oscillator signal having a second frequency to generate a processed radar signal. The second frequency is offset from the first frequency by a predetermined offset value. An output signal is generated by executing a fast Fourier transform on the processed radar signal to generate a frequency-domain output signal.

    VEHICULAR RADAR SENSING SYSTEM
    8.
    发明公开

    公开(公告)号:US20240094332A1

    公开(公告)日:2024-03-21

    申请号:US18468810

    申请日:2023-09-18

    Abstract: A vehicular radar sensing system includes a radar sensor disposed with a field of sensing within an interior of a vehicle. The radar sensor includes a plurality of transmitters and a plurality of receivers and a printed circuit board (PCB) having electronic circuitry and associated software. The electronic circuitry includes a processor operable to process outputs of the receivers. The plurality of transmitters includes a plurality of transmitting antennas, and the plurality of receivers includes a plurality of receiving antennas. The plurality of transmitting antennas is established on a surface of a glass panel of the vehicle in a transmitting antenna pattern. The plurality of receiving antennas is established on the surface of the glass panel in a receiving antenna pattern. The vehicular radar sensing system, responsive to processing of outputs of the plurality of receivers, detects presence of an occupant within the cabin of the vehicle.

    Bumper radar clamp mount
    10.
    发明授权

    公开(公告)号:US11914031B2

    公开(公告)日:2024-02-27

    申请号:US17336544

    申请日:2021-06-02

    Abstract: A mount for securing an element such as a radar transceiver on a vehicle includes a bracket securable to a vehicle bumper or other component. A cover plate is securable to the vehicle component opposite the bracket, and fasteners are extended through the cover plate and the bracket to clamp the bracket and the cover plate against opposite sides of the vehicle component, with the radar transceiver or other element located between the cover plate and a base of the bracket. An alignment arrangement may be included to permit changes to the positioning of the radar transceiver or other element between the cover plate and the base of the bracket for proper transceiver alignment. A process of securing a radar transceiver or other element on a vehicle is also described.

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