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    • 7. 发明申请
    • ANTENNA PATTERN DATA MINING FOR AUTOMOTIVE GNSS RECEIVERS
    • 用于汽车GNSS接收机的天线图形数据采矿
    • US20170052260A1
    • 2017-02-23
    • US14829805
    • 2015-08-19
    • QUALCOMM Technologies International, Ltd.
    • Madhukar Ramamurthy
    • G01S19/23G01S19/24G01S19/22
    • G01S19/23G01R29/10G01S19/22G01S19/24G01S19/36G01S19/42G01S19/53
    • The system provides a global navigation satellite system (GNSS) receiver in a vehicle. The GNSS receiver includes a radio frequency (RF) receiving circuit configured to receive GNSS signals from a plurality of GNSS satellites orbiting Earth at respective azimuth and elevation angles, a memory device storing an predetermined antenna pattern including initial signal to noise ratio (SNR) values for each of the respective azimuth and elevation angles, and a processor. The processor is configured to calculate SNR values of the received GNSS signals, iteratively calculate an updated antenna pattern by combining the calculated SNR values with the initial SNR values, compare further SNR values of further received GNSS signals to the SNR values in the updated antenna pattern to perform at least one of the following: 1) detection and mitigation of multipath signals, 2) estimation of vehicle heading, and 3) determination of a location of the antenna within the vehicle.
    • 该系统在车辆中提供全球导航卫星系统(GNSS)接收机。 GNSS接收器包括射频(RF)接收电路,其被配置为以相应的方位角和仰角从轨道绕地球的多个GNSS卫星接收GNSS信号;存储装置,其存储包括初始信噪比(SNR)值的预定天线方向图 对于各个方位角和仰角中的每一个以及处理器。 处理器被配置为计算所接收的GNSS信号的SNR值,通过将计算的SNR值与初始SNR值组合来迭代地计算更新的天线方向图,将进一步接收的GNSS信号的SNR值与更新的天线方向图中的SNR值进行比较 执行以下中的至少一个:1)检测和减轻多路径信号,2)车辆航向的估计,以及3)确定车辆内天线的位置。