GLOBAL NAVIGATION SATELLITE SYSTEM (GNSS) RECEIVER OPERATION DURING SPOOFING

    公开(公告)号:WO2022026795A1

    公开(公告)日:2022-02-03

    申请号:PCT/US2021/043840

    申请日:2021-07-30

    Abstract: In conditions in which Global Navigation Satellite System (GNSS) signal spoofing is likely occurring, a GNSS receiver may be operated in a reduced operational state with respect to one or more GNSS bands that are likely being spoofed. According to embodiments, a reduced operational state with regard to a GNSS band may comprise performing one or more of the following functions with respect to that GNSS band: disabling data demodulation and decoding, disabling time setting (e.g., time of week (TOW), week number, etc.) disabling acquisition of unknown/not visible satellites, disabling satellite differences, disabling error recovery, reducing non-coherent integration time, and duty cycling the power for one or more receiver blocks associated with the GNSS band.

    WATER-RELATED ACTION TRIGGERING
    2.
    发明申请

    公开(公告)号:WO2018208351A1

    公开(公告)日:2018-11-15

    申请号:PCT/US2018/018344

    申请日:2018-02-15

    Abstract: A method of triggering an action includes: determining that a mobile device is under water by: determining that an amplitude of a satellite positioning system (SPS) signal, or a wireless communication signal, or a combination thereof, received by the mobile device is below a threshold amplitude; or comparing data from a motion sensor of the mobile device with motion sensor data characteristic of entering water; or a combination thereof; determining that the mobile device has an action-inducing relationship to water; and taking the action in response to determining that the mobile device has the action-inducing relationship to water.

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