OSCILLATOR SYNCRHONIZATION IN MULTIPLE ANTENNAS SYSTEMS USING MUTUAL COUPLING SIGNALS

    公开(公告)号:US20230129011A1

    公开(公告)日:2023-04-27

    申请号:US17331524

    申请日:2021-05-26

    摘要: Systems, methods, and computer-readable media for synchronizing oscillators. A system can include a plurality of oscillators comprising at least a first oscillator and a second oscillator. The system can also include a plurality of antennas comprising at least a first antenna and a second antenna. Further, the system can include a first oscillator synchronizer coupling the first oscillator to the first antenna. The first oscillator synchronizer can be operative to perform a first synchronization of a first time base of the first oscillator to a second time base of the second oscillator based on a first mutual coupling signal. The first mutual coupling signal can represent a first interaction between the first antenna and the second antenna.

    IMAGING USING FREQUENCY-SCANNED RADAR
    2.
    发明申请

    公开(公告)号:US20190324134A1

    公开(公告)日:2019-10-24

    申请号:US16391215

    申请日:2019-04-22

    发明人: Bryan Cattle

    摘要: Antennas oriented at a first orientation toward an area of interest can transform radar signals through a first transformation that physically maps the plurality of radar signals with a plurality of unique beam angles corresponding to a plurality of unique frequencies. Antennas oriented at a second orientation toward the area of interest can transform radar signals through a second transformation completing the first transformation. A frequency scan can be performed on a first plurality of responses to first radar signals to identify first spatial data along a first dimension. Second spatial data at second spatial location along a second dimension can be created from a second plurality of responses corresponding to the second transformation. An image can be generated using the first spatial data and the second spatial data while a range value of the area of interest can be determined using the first plurality of responses.

    RADAR SIGNAL MANAGEMENT USING TARGET CHARACTERISTICS

    公开(公告)号:US20240230838A9

    公开(公告)日:2024-07-11

    申请号:US18384732

    申请日:2023-10-27

    摘要: Systems, methods, and computer-readable media for performing radar operations based on characteristics of a target. First operational limits defining a limit of a detection operation, imaging operation, or some combination thereof can be identified. The first operational limits can be associated with first operational values of operational parameters. Radar waveform parameters to optimize can be identified. Further, first optimal values for the radar waveform parameters can be identified based on the first operational values associated with the first operational limits. Additionally, a first optimized radar signal can be generated using the first optimal values of the radar waveform parameters. The first optimized radar signal can be optimized for the first operational limits. As follows, the first optimized radar signal can be transmitted towards a target area.

    Radar-based imaging systems and methods

    公开(公告)号:US11965955B2

    公开(公告)日:2024-04-23

    申请号:US17940810

    申请日:2022-09-08

    IPC分类号: G01S13/90 G01S13/931

    摘要: In some examples, a radar system comprises a plurality of antenna elements spatially distributed to form a sparse antenna array orthogonal to a range dimension of the radar imaging system, wherein the plurality of antenna elements are configured to transform a plurality of independent radar signals for a field of view. The system can also include an image processing system that is configured to recover interaction information gained from interaction of the plurality of independent radar signals with the field of view; use the interaction information to identify radar imaging data about the field of view; and form one or more three-dimensional (3D) voxels of the field of view using the radar imaging data.

    Imaging methods using frequency-scanned radar

    公开(公告)号:US11852717B2

    公开(公告)日:2023-12-26

    申请号:US17902403

    申请日:2022-09-02

    发明人: Bryan Cattle

    摘要: Antennas oriented at a first orientation toward an area of interest can transform radar signals through a first transformation that physically maps the plurality of radar signals with a plurality of unique beam angles corresponding to a plurality of unique frequencies. Antennas oriented at a second orientation toward the area of interest can transform radar signals through a second transformation completing the first transformation. A frequency scan can be performed on a first plurality of responses to first radar signals to identify first spatial data along a first dimension. Second spatial data at second spatial location along a second dimension can be created from a second plurality of responses corresponding to the second transformation. An image can be generated using the first spatial data and the second spatial data while a range value of the area of interest can be determined using the first plurality of responses.

    IMAGING USING FREQUENCY-SCANNED RADAR

    公开(公告)号:US20230066031A1

    公开(公告)日:2023-03-02

    申请号:US17902403

    申请日:2022-09-02

    发明人: Bryan CATTLE

    摘要: Antennas oriented at a first orientation toward an area of interest can transform radar signals through a first transformation that physically maps the plurality of radar signals with a plurality of unique beam angles corresponding to a plurality of unique frequencies. Antennas oriented at a second orientation toward the area of interest can transform radar signals through a second transformation completing the first transformation. A frequency scan can be performed on a first plurality of responses to first radar signals to identify first spatial data along a first dimension. Second spatial data at second spatial location along a second dimension can be created from a second plurality of responses corresponding to the second transformation. An image can be generated using the first spatial data and the second spatial data while a range value of the area of interest can be determined using the first plurality of responses.

    RADAR SIGNAL MANAGEMENT USING TARGET CHARACTERISTICS

    公开(公告)号:US20240134005A1

    公开(公告)日:2024-04-25

    申请号:US18384732

    申请日:2023-10-26

    摘要: Systems, methods, and computer-readable media for performing radar operations based on characteristics of a target. First operational limits defining a limit of a detection operation, imaging operation, or some combination thereof can be identified. The first operational limits can be associated with first operational values of operational parameters. Radar waveform parameters to optimize can be identified. Further, first optimal values for the radar waveform parameters can be identified based on the first operational values associated with the first operational limits. Additionally, a first optimized radar signal can be generated using the first optimal values of the radar waveform parameters. The first optimized radar signal can be optimized for the first operational limits. As follows, the first optimized radar signal can be transmitted towards a target area.

    Object sensing from a potentially moving frame of reference with virtual apertures formed from sparse antenna arrays

    公开(公告)号:US11448754B2

    公开(公告)日:2022-09-20

    申请号:US16688282

    申请日:2019-11-19

    IPC分类号: G01S13/90 G01S13/931

    摘要: In some examples, a first plurality of independent waveforms can be generated and converted into a first plurality of independent transmitted radar signals transmitted towards a field of view using a transmitter array comprising a first plurality of transmitter antennas. Further, a second plurality of receive radar signals to the first plurality of independent transmitted radar signals can be received from the field of view using a receiver array comprising a second plurality of receiver antennas. The second plurality of receive radar signals can be combined to form a combined receive radar signal and a representation of one or more areas of interest in the field of view can be provided using the combined receive radar signal. One or more attributes of the one or more areas of interest can be rendered using the representation of the one or more areas of interest.

    IMAGING USING FREQUENCY-SCANNED RADAR
    10.
    发明公开

    公开(公告)号:US20230333243A1

    公开(公告)日:2023-10-19

    申请号:US18212494

    申请日:2023-06-21

    发明人: Bryan CATTLE

    摘要: Antennas oriented at a first orientation toward an area of interest can transform radar signals through a first transformation that physically maps the plurality of radar signals with a plurality of unique beam angles corresponding to a plurality of unique frequencies. Antennas oriented at a second orientation toward the area of interest can transform radar signals through a second transformation completing the first transformation. A frequency scan can be performed on a first plurality of responses to first radar signals to identify first spatial data along a first dimension. Second spatial data at second spatial location along a second dimension can be created from a second plurality of responses corresponding to the second transformation. An image can be generated using the first spatial data and the second spatial data while a range value of the area of interest can be determined using the first plurality of responses.