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.

    ANTENNA PHASE CENTER COMPENSATION FOR ORBITAL ASSISTANCE DATA

    公开(公告)号:US20230258817A1

    公开(公告)日:2023-08-17

    申请号:US18305070

    申请日:2023-04-21

    CPC classification number: G01S19/235 G01S19/071 G01S19/04

    Abstract: A method, apparatus, and system are disclosed for providing modified orbital assistance data to a mobile station to determine its location using global navigation satellite system (GNSS). In some example embodiments, a method for determining a location of a mobile station using orbital assistance data may include: receiving satellite positioning signals from a plurality of GNSS satellites; receiving orbital assistance data comprising a distance between a location on an antenna which is associated with a first frequency of the satellite positioning signals and a location on the antenna which is associated with a second frequency of the satellite positioning signals; and determining the location of the mobile station based on the orbital assistance data and the satellite positioning signals.

    ULTRA WIDE-LANE (UWL) REAL-TIME KINEMATIC (RTK) POSITIONING

    公开(公告)号:US20220373696A1

    公开(公告)日:2022-11-24

    申请号:US17313486

    申请日:2021-05-06

    Abstract: Techniques for Ultra Wide-Lane (UWL) Real-Time Kinematic (RTK) positioning a mobile device may include obtaining, using a multi-band GNSS receiver of the mobile device: a first carrier-phase measurement of a first GNSS signal on a first GNSS carrier frequency, and a second carrier-phase measurement of a second GNSS signal on second GNSS carrier frequency. Techniques may further comprise providing a position estimate of the mobile device, wherein: the position estimate is determined from a wide-lane (WL) combination of the first carrier-phase measurement and the second carrier-phase measurement, and the WL combination has a combined carrier phase noise that is less than a pseudo-range noise of the first carrier-phase measurement and a pseudo-range noise of the second carrier-phase measurement.

    DEVICES AND TECHNIQUES FOR IMPROVING RECEPTION OR COMPENSATING FOR ATTENUATION OF GNSS SIGNALS DURING WATER IMMERSION ACTIVITIES

    公开(公告)号:US20220291393A1

    公开(公告)日:2022-09-15

    申请号:US17201415

    申请日:2021-03-15

    Abstract: A wearable device that can receive a plurality of Global Navigation Satellite System (GNSS) timing signals using an antenna, where the antenna is located in an exterior portion of the wearable device such that the antenna receives GNSS signals at the external portion of the wearable device, without the GNSS signals first passing through an air gap within a housing of the wearable device. The wearable device is configured to determine a geographic location of the wearable device based at least in part on the GNSS signals. The wearable device is configurable to perform underwater dead-reckoning procedures, measuring energy levels during dwell periods, measuring efficiency of swim strokes, sharing wearable device information with other electronic devices, calibrating the wearable device, or a combination thereof.

    DEVICES AND TECHNIQUES FOR IMPROVING RECEPTION OR COMPENSATING FOR ATTENUATION OF GNSS SIGNALS DURING WATER IMMERSION ACTIVITIES

    公开(公告)号:US20240012154A1

    公开(公告)日:2024-01-11

    申请号:US18471281

    申请日:2023-09-20

    CPC classification number: G01S19/19

    Abstract: A wearable device that can receive a plurality of Global Navigation Satellite System (GNSS) timing signals using an antenna, where the antenna is located in an exterior portion of the wearable device such that the antenna receives GNSS signals at the external portion of the wearable device, without the GNSS signals first passing through an air gap within a housing of the wearable device. The wearable device is configured to determine a geographic location of the wearable device based at least in part on the GNSS signals. The wearable device is configurable to perform underwater dead-reckoning procedures, measuring energy levels during dwell periods, measuring efficiency of swim strokes, sharing wearable device information with other electronic devices, calibrating the wearable device, or a combination thereof.

    SATELLITE INTEGRITY MONITORING WITH CROWDSOURCED MOBILE DEVICE DATA

    公开(公告)号:US20190094371A1

    公开(公告)日:2019-03-28

    申请号:US15713155

    申请日:2017-09-22

    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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