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    CALIBRATION OF RADAR WITH MULTIPLE TRANSMITTERS
    1.
    发明公开
    CALIBRATION OF RADAR WITH MULTIPLE TRANSMITTERS 审中-公开

    公开(公告)号：US20230333208A1

    公开(公告)日：2023-10-19

    申请号：US18193716

    申请日：2023-03-31

    Applicant: Infineon Technologies AG

    Inventor： Mayeul Jeannin ,  Farhan Bin Khalid ,  Dian Tresna Nugraha

    IPC: G01S7/40 ,  G01S7/35 ,  G01S13/58

    CPC classification number: G01S7/4008 ,  G01S7/40 ,  G01S7/356 ,  G01S13/584

    Abstract: A radar system has a plurality of radar transmitters and at least one radar receiver, each radar transmitter having a transmitter adjuster for tuning the output of the respective transmitter, for example tuning the phase of each of a plurality of constellation points of a constellation. The radar system may operate in a calibration cycle by transmitting from a single radar transmitter using the transmitter adjuster, obtaining an estimate of the error in the transmitter adjuster and adjusting the transmitter adjuster according to the estimate of the error. In an operation cycle the radar system may transmit using the plurality of radar transmitters, the signal being transmitter from each radar transmitter being tuned using the transmitter adjuster. Calibration cycles are interspersed between operation cycles during operation.

    COMPRESSIVE MULTIPLEXING FOR RECEIVED RADAR SIGNALS
    2.
    发明申请
    COMPRESSIVE MULTIPLEXING FOR RECEIVED RADAR SIGNALS 有权

    公开(公告)号：US20240385287A1

    公开(公告)日：2024-11-21

    申请号：US18501150

    申请日：2023-11-03

    Applicant: Infineon Technologies AG

    Inventor： Mayeul Jeannin ,  Dian Tresna Nugraha ,  Farhan Bin Khalid ,  Andre Roger

    IPC: G01S7/35 ,  G01S7/03

    Abstract: Systems, methods, and circuitries are disclosed for compressing radar data. In one example, a method includes receiving respective radar signals from a plurality of antennas; applying respective phase shifts to the respective received radar signals or to respective radar data derived from the respective received radar signals to generate respective coded radar signals or respective coded radar data; and combining the respective coded radar signals or the respective coded radar data to generate a compressed radar signal or compressed radar data

    INTEGRATED RADAR SIGNAL PROCESSING CIRCUIT
    3.
    发明申请
    INTEGRATED RADAR SIGNAL PROCESSING CIRCUIT 有权

    公开(公告)号：US20230096861A1

    公开(公告)日：2023-03-30

    申请号：US17948262

    申请日：2022-09-20

    Applicant: Infineon Technologies AG

    Inventor： Markus Bichl ,  Mayeul Jeannin

    IPC: G01S7/35 ,  G01S13/58 ,  G01S7/41

    Abstract: A circuit includes a signal processing unit to generate a radar map represented by an array with a first index and a second index, and a peak detection unit to identify potential targets in the radar map. Within the peak detection unit, a first peak detection sub-unit scans the radar map along the first index and stores a first detection bitmap that identifies peaks as a function of the first index, and a second peak detection sub-unit scans the radar map along the second index and outputs a second detection bitmap that identifies peaks as a function of the second index. The first detection bitmap and the second detection bitmap identify the peaks using a single bit. A hardware accelerator processes individual bits of the first detection bitmap and of the second detection bitmap.

    CHANNEL OFFSET CORRECTION FOR RADAR DATA
    5.
    发明公开
    CHANNEL OFFSET CORRECTION FOR RADAR DATA 审中-公开

    公开(公告)号：US20230384418A1

    公开(公告)日：2023-11-30

    申请号：US17828151

    申请日：2022-05-31

    Applicant: Infineon Technologies AG

    Inventor： Mayeul Jeannin ,  Maximilian Eschbaumer ,  Farhan Bin Khalid ,  Dian Tresna Nugraha ,  Andre Roger

    IPC: G01S7/40 ,  G01S13/89 ,  G01S13/58

    CPC classification number: G01S7/40 ,  G01S13/89 ,  G01S13/58

    Abstract: Systems, methods, and circuitries are provided for calibrating a radar system to compensate for a channel offset. In one example, a method is disclosed for processing radar signals with a radar device. The method includes including receiving respective radar signals from respective virtual receive channels, wherein each virtual receive channel corresponds to a combination of a transmit antenna element and a receive antenna element of an antenna element array. Respective received radar data is generated from the respective radar signals and the radar date is processed to identify one or more stationary objects. Based on the radar data, an estimated radar device motion relative to the one or more stationary objects is determined. A difference between the estimated radar device motion and an expected motion of the radar device is determined and a correction vector is determined based on the difference. The correction vector to is applied to subsequent radar data.

    DOPPLER DIVISION MULTIPLEXING
    7.
    发明申请
    DOPPLER DIVISION MULTIPLEXING 有权

    公开(公告)号：US20240369679A1

    公开(公告)日：2024-11-07

    申请号：US18650240

    申请日：2024-04-30

    Applicant: Infineon Technologies AG

    Inventor： Mayeul Jeannin ,  Dian Tresna Nugraha ,  Farhan Bin Khalid

    IPC: G01S7/35 ,  G01S7/03

    Abstract: A radar system transmits using a number of transmitters with respective different phase shift keying schemes, the order of at least one of the different phase shift keying schemes not being a power of two. A radar system may carry out a method which may include correcting for angle estimation distortion resulting from phase components injected as a result of the at least one of the different phase shift keying schemes not being a power of two. The method may further include correcting for rotating phases in the values of the transformed data cube resulting from the order of at least one of the different phase shift keying schemes not being a power of two. Amplitude distortion caused by inter-bin misalignment of the ODDM shifted peaks in the Doppler FFT spectrum may be avoided.

    Radar device and method for detecting radar targets
    8.
    发明授权
    Radar device and method for detecting radar targets 有权

    公开(公告)号：US12111392B2

    公开(公告)日：2024-10-08

    申请号：US17448609

    申请日：2021-09-23

    Applicant: Infineon Technologies AG

    Inventor： Andre Roger ,  Farhan Bin Khalid ,  Mayeul Jeannin ,  Markus Bichl

    IPC: G01S13/89 ,  G01S13/58 ,  G01S13/931

    CPC classification number: G01S13/89 ,  G01S13/584 ,  G01S13/931

    Abstract: The present disclosure relates to a concept for detecting radar targets. A plurality of first receive signals is received from first antennas of an antenna array. A first combined range-Doppler map is determined by combining range-Doppler maps of each of the first antennas. First confirmable range-Doppler cells of the first combined range-Doppler map are determined which match a predetermined confirmation criterion. A plurality of second receive signals is received from second antennas of the antenna array. A second combined range-Doppler map is determined by combining range-Doppler maps of each of the second antennas. Second confirmable range-Doppler cells of the second combined range-Doppler map are determined which match the predetermined confirmation criterion. The first and second confirmable range-Doppler cells are combined to obtain a set of confirmable range-Doppler cells. Values of the first and the second combined range-Doppler maps corresponding to the set of confirmable range-Doppler cells are summed to obtain summed values of the combined confirmable range-Doppler cells. Summed values of the total confirmable range-Doppler cells exceeding a predefined selection threshold are selected for target detection.

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