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    METHOD AND APPARATUS FOR GNSS SIGNAL TRACKING
    1.
    发明申请
    METHOD AND APPARATUS FOR GNSS SIGNAL TRACKING 审中-公开

    公开(公告)号：US20170285173A1

    公开(公告)日：2017-10-05

    申请号：US15629860

    申请日：2017-06-22

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Karthik Subburaj ,  Jawaharial Tangudu ,  Saurabh Khanna

    IPC: G01S19/24 ,  G01S19/29

    CPC classification number: G01S19/246 ,  G01S19/29

    Abstract: A GNSS receiver to track low power GNSS satellite signals. The GNSS receiver includes a frequency locked loop (FLL) that measures a current doppler frequency of the satellite signal. A delay locked loop (DLL) measures a current code phase delay of the satellite signal. A current operating point corresponds to the current doppler frequency and the current code phase delay of the satellite signal. A grid monitor receives the satellite signal and the current operating point, and measures a satellite signal strength at a plurality of predefined offset points from the current operating point. The FLL and the DLL are centered at the current operating point. A peak detector is coupled to the grid monitor and processes the satellite signal strengths at the plurality of predefined offset points and re-centers the FLL and the DLL to a predefined offset point with the satellite signal strength above a predefined threshold.

    Linear, synthesized radar receiver array between and extending from ICS
    2.
    发明授权
    Linear, synthesized radar receiver array between and extending from ICS 有权

    公开(公告)号：US10782389B2

    公开(公告)日：2020-09-22

    申请号：US15676547

    申请日：2017-08-14

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Sandeep Rao ,  Karthik Ramasubramanian ,  Brian Ginsburg ,  Jawaharial Tangudu ,  Karthik Subburaj

    IPC: G01S7/03 ,  G01S13/34 ,  G01S13/931 ,  H01Q1/32

    Abstract: A device includes a circuit board having thereon, a controlling component, a first radar chip and a second radar chip. The first radar chip includes a first radar transmission antenna, a second radar transmission antenna and a first radar receiver antenna array. The second radar chip includes a second radar receiver antenna array. The controlling component can control the first radar chip and the second radar chip. The first radar transmission antenna can transmit a first radar transmission signal. The second radar transmission antenna can transmit a second radar transmission signal. The second radar chip is spaced from the first radar chip so as to create a virtual receiver antenna array between the first radar receiver antenna array and the second radar receiver antenna array.

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