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    METHOD AND APPARATUS FOR GNSS SIGNAL TRACKING
    2.
    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.

    Method and apparatus for GNSS signal tracking
    3.
    发明授权
    Method and apparatus for GNSS signal tracking 有权

    公开(公告)号：US10429515B2

    公开(公告)日：2019-10-01

    申请号：US15629860

    申请日：2017-06-22

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Karthik Subburaj ,  Jawaharlal Tangudu ,  Saurabh Khanna

    IPC: G01S19/24 ,  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.

    Dynamic Programming of Chirps in a Frequency Modulated Continuous Wave (FMCW) Radar System
    4.
    发明申请
    Dynamic Programming of Chirps in a Frequency Modulated Continuous Wave (FMCW) Radar System 有权
    调频连续波（FMCW）雷达系统中啁啾的动态编程

    公开(公告)号：US20160327633A1

    公开(公告)日：2016-11-10

    申请号：US14704868

    申请日：2015-05-05

    Applicant: Texas Instruments Incorporated

    Inventor： Chethan Kumar Y.B. ,  Saurabh Khanna ,  Vijay Rentala

    IPC: G01S7/32 ,  H01Q23/00 ,  G01S7/282

    CPC classification number: H01Q23/00 ,  G01S7/35 ,  G01S13/343 ,  G01S13/345

    Abstract: A Frequency Modulated Continuous Wave (FMCW) radar system is provided that includes a chirp profile storage component configured to store a chirp profile for each chirp of a frame of chirps and a timing engine coupled to the chirp profile storage component to receive each chirp profile in transmission order during transmission of the frame of chirps, in which the timing engine uses each chirp profile to configure a corresponding chirp.

    Abstract translation: 提供了一种频率调制连续波（FMCW）雷达系统，其包括线性调频脉冲存储部件，其被配置为存储啁啾帧的每个啁啾的啁啾分布，以及耦合到啁啾分布存储组件的定时引擎，以接收每个啁啾分布 啁啾帧发送期间的发送顺序，其中定时引擎使用每个啁啾曲线来配置相应的啁啾。

    TECHNIQUES FOR ANGLE RESOLUTION IN RADAR
    5.
    发明申请
    TECHNIQUES FOR ANGLE RESOLUTION IN RADAR 有权
    雷达角度分辨率的技术

    公开(公告)号：US20150185316A1

    公开(公告)日：2015-07-02

    申请号：US14329446

    申请日：2014-07-11

    Applicant: Texas Instruments Incorporated

    Inventor： Sandeep Rao ,  Saurabh Khanna

    IPC: G01S13/06

    CPC classification number: G01S7/032 ,  G01S7/354 ,  G01S13/34 ,  G01S13/42 ,  G01S13/931 ,  H01Q1/3233 ,  H01Q3/247 ,  H01Q3/2629 ,  H01Q21/08

    Abstract: A radar apparatus for estimating position of a plurality of obstacles. The radar apparatus includes a receive antenna unit. The receive antenna unit includes a linear array of antennas and an additional antenna at a predefined offset from at least one antenna in the linear array of antennas. The radar apparatus also includes a signal processing unit. The signal processing unit estimates an azimuth frequency associated with each obstacle of the plurality of obstacles from a signal received from the plurality of obstacles at the linear array of antennas. In addition, the signal processing unit estimates an azimuth angle and an elevation angle associated with each obstacle from the estimated azimuth frequency associated with each obstacle.

    Abstract translation: 一种用于估计多个障碍物的位置的雷达装置。 雷达装置包括接收天线单元。 接收天线单元包括天线的线性阵列和在线性天线阵列中与至少一个天线预定偏移的附加天线。 雷达装置还包括信号处理单元。 信号处理单元从天线的线阵列从多个障碍物接收的信号估计与多个障碍物的每个障碍物相关的方位角频率。 此外，信号处理单元从与每个障碍物相关联的估计的方位角频率估计与每个障碍物相关联的方位角和仰角。

    METHOD AND APPARATUS FOR GNSS SIGNAL TRACKING
    9.
    发明申请
    METHOD AND APPARATUS FOR GNSS SIGNAL TRACKING 审中-公开
    GNSS信号跟踪的方法和装置

    公开(公告)号：US20150097729A1

    公开(公告)日：2015-04-09

    申请号：US14337773

    申请日：2014-07-22

    Applicant: Texas Instruments Incorporated

    Inventor： Karthik Subburaj ,  Jawaharlal Tangudu ,  Saurabh Khanna

    IPC: G01S19/30

    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.

    Abstract translation: GNSS接收机，用于跟踪低功率GNSS卫星信号。 GNSS接收机包括测量卫星信号的当前多普勒频率的频率锁定环（FLL）。 延迟锁定环（DLL）测量卫星信号的当前码相位延迟。 当前操作点对应于当前多普勒频率和卫星信号的当前码相位延迟。 电网监视器接收卫星信号和当前工作点，并且测量来自当前工作点的多个预定偏移点处的卫星信号强度。 FLL和DLL以当前操作点为中心。 峰值检测器耦合到电网监视器并处理多个预定偏移点处的卫星信号强度，并使FLL和DLL重新定位到具有高于预定阈值的卫星信号强度的预定偏移点。

    TECHNIQUES FOR ANGLE RESOLUTION IN RADAR
    10.
    发明申请
    TECHNIQUES FOR ANGLE RESOLUTION IN RADAR 有权

    公开(公告)号：US20210247488A1

    公开(公告)日：2021-08-12

    申请号：US17243616

    申请日：2021-04-29

    Applicant: Texas Instruments Incorporated

    Inventor： Sandeep Rao ,  Saurabh Khanna

    IPC: G01S7/03 ,  H01Q21/08 ,  H01Q3/26 ,  G01S7/35 ,  G01S13/931 ,  H01Q1/32 ,  G01S13/42 ,  H01Q3/24 ,  G01S13/34

    Abstract: A radar apparatus for estimating position of a plurality of obstacles. The radar apparatus includes a receive antenna unit. The receive antenna unit includes a linear array of antennas and an additional antenna at a predefined offset from at least one antenna in the linear array of antennas. The radar apparatus also includes a signal processing unit. The signal processing unit estimates an azimuth frequency associated with each obstacle of the plurality of obstacles from a signal received from the plurality of obstacles at the linear array of antennas. In addition, the signal processing unit estimates an azimuth angle and an elevation angle associated with each obstacle from the estimated azimuth frequency associated with each obstacle.

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