COOPERATIVE POSITIONING WITH MULTIPLE GLOBAL NAVIGATION SATELLITE SYSTEM RECEIVERS

    公开(公告)号:US20240272309A1

    公开(公告)日:2024-08-15

    申请号:US18168102

    申请日:2023-02-13

    CPC classification number: G01S19/51 G01S19/07 G01S19/44

    Abstract: Techniques are provided for integrating GNSS measurements between two or more GNSS receivers. An example method includes determining an antenna baseline vector based on relative locations of a first antenna that is communicatively coupled to a first GNSS receiver and a second antenna that is communicatively coupled to a second GNSS receiver, determining a first position estimate and a first integer ambiguity resolution (IAR) status with the first GNSS receiver at a first time, determining a second position estimate and a second IAR status with the second GNSS receiver at approximately the first time, computing a horizontal offset value based on the antenna baseline vector and a difference between the first position estimate and the second position estimate, and generating the wrong fix indication in response to the first IAR status being fixed, the second IAR status being fixed, and the horizontal offset value being greater than a threshold value.

    DETECTING SPOOFED GLOBAL NAVIGATION SATELLITE SYSTEM (GNSS) SIGNALS

    公开(公告)号:US20240111061A1

    公开(公告)日:2024-04-04

    申请号:US18534354

    申请日:2023-12-08

    CPC classification number: G01S19/215 G08B21/18

    Abstract: In an aspect, a user equipment (UE) receives a spoofing alert message from either a server or an internet-of-things (IOT) device that indicates whether a spoofed Global Navigation Satellite System (GNSS) condition is present. Based on determining that the spoofing alert message indicates that a spoofed GNSS condition is present, the UE determines, based on the spoofing alert message, a location of a spoofer broadcasting a spoofed GNSS signal, determines, based on the location of the spoofer and a current location of the UE, that the UE is within a receiving area of the spoofed GNSS signal, and determines a position of the UE without using the spoofed GNSS signal.

    DETECTING SPOOFED GLOBAL NAVIGATION SATELLITE SYSTEM (GNSS) SIGNALS

    公开(公告)号:US20220342082A1

    公开(公告)日:2022-10-27

    申请号:US17238730

    申请日:2021-04-23

    Abstract: In an aspect, a user equipment (UE) receives a spoofing alert message from either a server or an internet-of-things (IOT) device that indicates whether a spoofed Global Navigation Satellite System (GNSS) condition is present. Based on determining that the spoofing alert message indicates that a spoofed GNSS condition is present, the UE determines, based on the spoofing alert message, a location of a spoofer broadcasting a spoofed GNSS signal, determines, based on the location of the spoofer and a current location of the UE, that the UE is within a receiving area of the spoofed GNSS signal, and determines a position of the UE without using the spoofed GNSS signal.

    PRECISE POSITIONING SERVICES WITH AN INTERNET OF THINGS NETWORK

    公开(公告)号:US20220279311A1

    公开(公告)日:2022-09-01

    申请号:US17186372

    申请日:2021-02-26

    Abstract: Techniques for providing precise positioning information to a mobile device with a dynamic Internet of Things (IoT) network are discussed. An example apparatus for determining a precise location of a mobile device includes at least one server comprising a data structure containing precise positioning subscription options associated with the mobile device, a plurality of client internet of things devices configured to communicate with the at least one server, wherein at least one of the plurality of client internet of things devices is a serving internet of things device configured to provide precise positioning information to the mobile device, and wherein the serving internet of things device is selected from the plurality of client internet of things devices based on the precise positioning subscription options.

    SATELLITE INTEGRITY MONITORING WITH CROWDSOURCED MOBILE DEVICE DATA

    公开(公告)号:US20210157011A1

    公开(公告)日:2021-05-27

    申请号:US17165852

    申请日:2021-02-02

    Abstract: Disclosed are a system, apparatus, and method for monitoring integrity of satellites, and global navigation satellite systems (GNSS). One or more satellites in one or more GNSS are monitored based on a reference crowdsourced integrity report. One or more satellite integrity metrics are determined for the one or more satellites based at least on signals from the one or more satellites. A position of the mobile device is estimated. The position of the mobile device and the one or more satellite integrity metrics are provided.

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