Beamforming techniques implementing the iterative adaptive approach (IAA)

    公开(公告)号:US11532883B2

    公开(公告)日:2022-12-20

    申请号:US16725396

    申请日:2019-12-23

    Abstract: Techniques are disclosed implementing two alternative approaches for adaptive beamforming for MIMO radar. The first of these includes a “reduced complexity” iterative adaptive approach (RC-IAA) algorithm, which uses two steps including a delay-and-sum beamforming step (DAS-BF) and an IAA step that is applied to the output generated by the DAS-BF step. A second technique is described that includes a “beam space” iterative adaptive approach (BS-IAA) algorithm, which uses three steps including a delay-and-sum beamforming step (DAS-BF), a region of interest (ROI) detection step that is applied to the output generated by the DAS-BF, and an IAA step that is applied to detected ROIs.

    METHODS AND APPARATUS TO IMPLEMENT COMPACT TIME-FREQUENCY DIVISION MULTIPLEXING FOR MIMO RADAR

    公开(公告)号:US20200233076A1

    公开(公告)日:2020-07-23

    申请号:US16455239

    申请日:2019-06-27

    Abstract: Methods and apparatus to implement compact time-frequency division multiplexing for MIMO radar are disclosed. An apparatus includes an antenna array controller to: transmit a first signal via a first transmitter of a radar antenna array, the first signal having a first duration and modulated across a first frequency range; and transmit a second signal via a second transmitter, the second signal having a second duration and modulated across a second frequency range, the first and second durations including an overlapping period of time, the first and second frequency ranges including an overlapping frequency range. The apparatus further includes a signal separation analyzer to: determine a first echo received at a receiver of the radar antenna array corresponds to the first signal; and determine a second echo received at the receiver corresponds to the second signal.

    RADAR APPARATUS, SYSTEM, AND METHOD

    公开(公告)号:US20240385291A1

    公开(公告)日:2024-11-21

    申请号:US18781829

    申请日:2024-07-23

    Abstract: Some demonstrative aspects include radar apparatuses, devices, systems and methods. In one example, an apparatus may include a plurality of Transmit (Tx) antennas to transmit radar Tx signals, a plurality of Receive (Rx) antennas to receive radar Rx signals based on the Tx signals, and a processor to generate radar information based on the radar Rx signals. The apparatus may be implemented, for example, as part of a radar device, for example, as part of a vehicle including the radar device. In other aspects, the apparatus may include any other additional or alternative elements and/or may be implemented as part of any other device.

    APPARATUS, SYSTEM AND METHOD OF RADAR ANTENNA CALIBRATION

    公开(公告)号:US20230126991A1

    公开(公告)日:2023-04-27

    申请号:US17909426

    申请日:2020-12-24

    Abstract: For example, a radar apparatus may include an input to receive radar receive (Rx) data, the radar Rx data based on radar signals received via a plurality of Rx antennas of Multiple-Input-Multiple-Output (MIMO) radar antenna; and a radar processor configured to generate radar information based on the radar Rx data by calibrating an antenna Mismatch (MM) of the MIMO radar antenna such that the radar information includes an Angle of Arrival (AoA) spectrum having a Peak Side Lobe Level (PSLL) of at least 30 decibel (dB).

    APPARATUS, SYSTEM AND METHOD OF A RADAR ANTENNA

    公开(公告)号:US20210389453A1

    公开(公告)日:2021-12-16

    申请号:US17446070

    申请日:2021-08-26

    Abstract: For example, a radar antenna may include a Transmit (Tx) antenna array configured to transmit a plurality of Tx radar signals; and a Receive (Rx) antenna array configured to receive a plurality of Rx radar signals based on the plurality of Tx radar signals, the Rx antenna array is orthogonal to the Tx antenna array, wherein a first array of the Tx antenna array or the Rx antenna array includes a first sub-array and a second sub-array parallel to the first sub-array, wherein a sub-array spacing between the first sub-array and the second sub-array is shorter than a length of a second array of the Tx antenna array or the Rx antenna array.

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