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    APPARATUS, RADAR SYSTEM, ELECTRONIC DEVICE AND METHOD
    1.
    发明公开
    APPARATUS, RADAR SYSTEM, ELECTRONIC DEVICE AND METHOD 审中-公开

    公开(公告)号：US20240353530A1

    公开(公告)日：2024-10-24

    申请号：US18630406

    申请日：2024-04-09

    Applicant: Infineon Technologies AG

    Inventor： Alexandr Melnikov

    IPC: G01S7/40 ,  G01S13/04

    CPC classification number: G01S7/4021 ,  G01S7/4008 ,  G01S13/04

    Abstract: In accordance with an embodiment, a method includes: determining a harmonic spectrum of an intermediate frequency (IF) signal of a radar sensor; determining an undesired signal component of the IF signal caused by at least one of a crosstalk of the radar sensor or a near-range obstacle in a field of view of the radar sensor based on the harmonic spectrum; and determining a calibrated signal having a reduced contribution from the undesired signal component based on the undesired signal component and the IF signal.

    Automated generation of radar interference reduction training data for autonomous vehicle systems
    2.
    发明授权
    Automated generation of radar interference reduction training data for autonomous vehicle systems 有权

    公开(公告)号：US12111411B1

    公开(公告)日：2024-10-08

    申请号：US17367888

    申请日：2021-07-06

    Applicant: Waymo LLC

    Inventor： Alessandro Temil ,  Gary Clayton

    IPC: G01S7/02 ,  G01S7/40 ,  G06N5/04 ,  G06N20/00

    CPC classification number: G01S7/023 ,  G01S7/40 ,  G01S7/4021 ,  G06N5/04 ,  G06N20/00

    Abstract: Example embodiments relate to methods and systems for automated generation of radar interference reduction training data for autonomous vehicles. In an example, a computing device causes a radar unit to transmit radar signals in an environment of a vehicle. The computing device may include a model trained based on a labeled interferer dataset that represents interferer signals generated by an emitter located remote from the vehicle. The interferer signals are based on one or more radar signal parameter models. The computing device may use the model to determine whether received electromagnetic energy corresponds to transmitted radar signals or an interferer signal. Based on determining that the electromagnetic energy corresponds to the transmitted radar signals, the computing device may generate a representation of the environment of the vehicle using the electromagnetic energy.

    Vehicular radar system with automatic sensor alignment
    4.
    发明授权
    Vehicular radar system with automatic sensor alignment 有权

    公开(公告)号：US12044794B2

    公开(公告)日：2024-07-23

    申请号：US17648835

    申请日：2022-01-25

    Applicant: Magna Electronics Inc.

    Inventor： Helmut A. Wodrich ,  Holger Hess ,  Sebastian Pliefke ,  Walter G. Woodington

    IPC: G01S7/40 ,  G01S13/86 ,  G01S13/87 ,  G01S13/931

    CPC classification number: G01S7/4008 ,  G01S7/40 ,  G01S7/4021 ,  G01S13/867 ,  G01S13/87 ,  G01S13/931

    Abstract: A method includes disposing a spherical radar reflector at a location exterior a vehicle equipped with the vehicular sensing system. The vehicular sensing system includes at least two radar sensors disposed at the vehicle and a controller that processes received radio frequency (RF) signals received by the plurality of receivers of each radar sensor of the at least two radar sensors. Calibration RF signals are transmitted by at least one transmitting antenna of a plurality of transmitters of a first radar sensor and a second radar sensor the at least two radar sensors, and reflected first calibration RF signals are received by the plurality of receivers of the first radar sensor and the second radar sensor. Based on a distance between the first radar sensor, the second radar sensor, and the spherical reflector, the vehicular sensing system determines an orientation of the first radar sensor and the second radar sensor.

    Radar receiving system and method for compensating a phase error between radar receiving circuits
    5.
    发明授权
    Radar receiving system and method for compensating a phase error between radar receiving circuits 有权

    公开(公告)号：US12013484B2

    公开(公告)日：2024-06-18

    申请号：US17324375

    申请日：2021-05-19

    Applicant: Infineon Technologies AG

    Inventor： Andre Roger ,  Dian Tresna Nugraha ,  Simon Achatz

    IPC: G01S7/40 ,  G01S7/35 ,  G01S13/34 ,  G01S13/87 ,  G01S13/931

    CPC classification number: G01S7/4021 ,  G01S7/356 ,  G01S13/87 ,  G01S13/931 ,  G01S13/343

    Abstract: According to one embodiment, a radar receiving system is provided comprising a first receiving circuit, a second receiving circuit, a spectral analyzer, an object detector, and a phase compensation circuit. The spectral analyzer is configured to generate, from a first plurality of reception signals, a first set of Fourier transformation output values and, from a second plurality of reception signals, a second set of Fourier transformation output values. The object detector is configured to determine a range/Doppler bin of a plurality of range/Doppler bins as an estimate of a range and speed of an object. The phase compensation circuit is configured to determine a phase offset between the Fourier transformation output values of the first set and second set of Fourier transformation output values and to compensate the phases of at least a part of the second set of Fourier transformation output values by the determined phase offset.

    BROADBAND RADIO FREQUENCY IMAGING SURFACE
    7.
    发明公开
    BROADBAND RADIO FREQUENCY IMAGING SURFACE 审中-公开

    公开(公告)号：US20240118412A1

    公开(公告)日：2024-04-11

    申请号：US18391900

    申请日：2023-12-21

    Applicant: Battelle Memorial Institute

    Inventor： Mollie A. Engel ,  Douglas A. Thornton ,  Raphael J. Welsh

    IPC: G01S13/89 ,  G01S7/03 ,  G01S7/40 ,  G01S13/02

    CPC classification number: G01S13/89 ,  G01S7/03 ,  G01S7/4021 ,  G01S13/0209

    Abstract: A broadband RF imaging device includes a broadband RF aperture array, at least one RF receiver, and a computer. The at least one RF receiver has short RF connections with the broadband RF aperture array, e.g. length 10 meters or less. The computer has a digital data connection to the at least one RF receiver. Each RF receiver is configured to receive broadband RF signal data over a sampling time interval from the broadband RF aperture array, and to digitize the broadband RF signal data to generate digitized broadband RF signal data, and to store the digitized broadband RF signal data locally at the RF receiver. The computer receives the digitized broadband RF signal data stored locally at the at least one RF receiver, and is programmed to reconstruct an RF image from the digitized broadband RF signal data received from the at least one RF receiver.

    Apparatus and method of RF built in self-test (RFBIST) in a radar system
    9.
    发明授权
    Apparatus and method of RF built in self-test (RFBIST) in a radar system 有权

    公开(公告)号：US11921195B2

    公开(公告)日：2024-03-05

    申请号：US17261159

    申请日：2019-06-29

    Applicant: ARBE ROBOTICS LTD.

    Inventor： Abraham Bauer ,  Noam Arkind

    IPC: G01S13/931 ,  G01S7/40 ,  G01S13/58

    CPC classification number: G01S13/931 ,  G01S7/4008 ,  G01S7/4021 ,  G01S13/584

    Abstract: A novel and useful safety functionality assurance mechanism incorporating an RF built in self-test (RFBIST) system in a radar system having a plurality of transmitter devices and receiver devices. The RFBIST functions to verify, inter alia, that the transmitted signal is operating correctly and that all channels transmit a proper, valid or ‘legal’ signal and that the receiver devices are also operating correctly. A higher level of safety assurance is achieved by comparing safety data between the receiver devices. In one embodiment, the signal received from the various transmitter devices is compared. The RFBIST circuit block eliminates the physical transmit antenna position properties to compare the transmitted signal properties after signal path elimination. Thus, the present invention is capable of (1) validating multiple transmitter devices with a single receiver device and (2) validating multiple receiver devices with a single transmitter device. When receiver devices detect a fault and that particular device is the master device, then a mechanism is provided to shut down the master device and making a slave device the new master device.

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