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公开(公告)号：US11536854B2
公开(公告)日：2022-12-27
申请号：US16858311
申请日：2020-04-24
摘要： A multiple faulty global navigation satellite signal detecting system is provided. The system includes at least one pair of spaced antennas, at least one aiding source and processor. The at least one pair of spaced antennas are configured to receive satellite signals from a plurality of satellites. The at least one aiding source is used to generate aiding source position estimate signals. The processor is in communication with each antenna and the at least one aiding source. The processor is configured to determine signals blocks. The signal blocks being a collection of subsets of the determined difference signals and a covariance matrix for the difference signals. The processor further configured to generate a union of good signals from all the good blocks and a complementary set of bad signals.
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2.发明授权公开(公告)号：US11493641B2
公开(公告)日：2022-11-08
申请号：US17035399
申请日：2020-09-28
发明人： Conor Ferguson , Austin Ratcliffe
摘要： A system for locating an optimal location of a reception antenna that has an unmanned aerial vehicle (UAV), a wireless internet service provider (WISP) tower configured for transmitting radio signals, and an antenna removably coupled to the unmanned aerial vehicle, the antenna configured for receiving the radio signals. Further, the system has a processor for automatically flying the UAV to a height, for rotating the unmanned aerial vehicle at the height and detecting the radio signals from the at least one WISP tower as the UAV rotates to determine an optimal azimuth, and if the radio signals received are not conducive for the provision of wireless services at the height, the processor moves the UAV to different heights and rotates the UAV until radio signals received are conducive for the provision of wireless services thereby determining an optimal azimuth and location altitude range for a reception antenna.
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公开(公告)号：US11372116B2
公开(公告)日：2022-06-28
申请号：US16246949
申请日：2019-01-14
发明人： Naoto Toda
摘要： An electronic device includes a GPS unit, a GPS information acquisition unit, a sensor information acquisition unit, and a reception condition determination unit. The GPS unit receives a radio wave from at least one of a plurality of positioning satellites. The GPS information acquisition unit acquires ephemeris information by the GPS unit and acquires satellite arrangement information of each of the plurality of positioning satellites acquiring the ephemeris information. The sensor information acquisition unit acquires geographical condition information of a current location at which the electronic device is present. The reception condition determination unit identifies the number of positioning satellites that the receiving unit can capture at the current location among the plurality of positioning satellites acquiring the ephemeris information based on the geographical condition information of the current location and the satellite arrangement information.
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公开(公告)号：US11333769B2
公开(公告)日：2022-05-17
申请号：US16787543
申请日：2020-02-11
申请人： NovAtel Inc.
发明人： Thomas Morley
摘要： A system and method generates a phase scintillation map that is utilized to de-weight satellite signal observations from GNSS satellites. One or more base stations each assign an index value to one or more GNSS satellite in view, where the index value indicates an adverse effect of ionospheric scintillation on signals received from the GNSS satellite. The values and identifiers may be transmitted to a server. The server utilizes the received information to generate the phase scintillation map that may include one or more scintillation bubbles, wherein a location of each scintillation bubble is based on the received information. The phase scintillation map is transmitted to one or more rovers. The rover determines if a pierce point associated with a selected GNSS satellite in view of the rover falls within the boundaries of a scintillation bubble. If so, satellite signal observations from the selected GNSS satellite are de-weighted.
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公开(公告)号：US11221415B2
公开(公告)日：2022-01-11
申请号：US16708707
申请日：2019-12-10
申请人： DENSO CORPORATION
发明人： Seigou Kumabe , Watanyoo Chitmant
摘要： A positioning device receives multiple positioning signals respectively transmitted from multiple positioning satellites, changes a condition of the positioning satellites to be used in a positioning calculation processing based on a determination of whether a surrounding environment is an environment in which a multipath is likely to occur, and performs the positioning calculation processing by using the positioning signals from the positioning satellites that satisfy the condition.
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公开(公告)号：US20210325543A1
公开(公告)日：2021-10-21
申请号：US17252045
申请日：2019-06-13
申请人： Panasonic Intellectual Property Management Co., Ltd. , NIPPON TELEGRAPH AND TELEPHONE CORPORATION
摘要： A positioning terminal is provided and identifies, as appropriate, a satellite to be excluded, thereby improving positioning accuracy. A processor acquires a signal-to-noise ratio (SNR) and an angle of elevation for each satellite. The processor next identifies a satellite for which the SNR is less than a shielding SNR mask as a multipath satellite and selects the satellite to be excluded. The processor next generates positioning terminal positioning data using a positioning signal from satellites other than the satellite to be excluded. The processor next uses reference station positioning data and positioning terminal positioning data of the selected satellite to execute an RTK calculation.
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公开(公告)号：US11061143B2
公开(公告)日：2021-07-13
申请号：US16087218
申请日：2017-03-17
申请人： NEC Corporation
发明人： Hiroshi Soga , Yoshimi Ohshima , Tomoya Osawa , Aki Taniyama , Aki Sakamoto
摘要： In a satellite navigation system a navigation terminal continuously receives navigation signals from navigation satellites and continuously implements navigation calculations, thereby obtaining navigation calculation results, and executes in parallel: using clock offset values determined through the navigation calculations, calculates, in real time, changes in difference between time differences with regard to difference between time differences, which are differences between a clock offset value and a standard deviation value, which is the value of the standard deviation of fluctuation amounts of the clock offset values; determines, in real time, two navigation precision indices of the calculated navigation calculation results on the basis of each change in the calculated difference between time differences and standard deviation value; associates, in real time, the determined two navigation precision indices with the calculated navigation calculation results; and outputs, in real time, the navigation calculation results associated with the at least two navigation precision indices.
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公开(公告)号：US20210199440A1
公开(公告)日：2021-07-01
申请号：US16951425
申请日：2020-11-18
申请人： KUBOTA CORPORATION
发明人： Ryosuke KINUGAWA , Keisuke MIURA
摘要： A work support system includes a positioning device to measure a position of a working object based on a signal of a positioning satellite, a notifier to issue notification of the working object based on whether the position of the working object measured by the positioning device is in an area, and an area changer to change a size of the area based on a number of the positioning satellite included in the signal received by the positioning device.
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公开(公告)号：US20210109231A1
公开(公告)日：2021-04-15
申请号：US17066779
申请日：2020-10-09
申请人： HERE GLOBAL B.V.
摘要： A method, apparatus and computer readable storage medium are provided for determining whether GNSS related positioning of a mobile device is expected or unexpected. In the context of a method, a representative of GNSS positioning accuracy for a mobile device is determined at least partially based on observation GNSS data and on correctional GNSS data. The method also includes determining, at least partially based on the representative of GNSS positioning accuracy, whether a GNSS related positioning is expected or unexpected for positioning of the mobile device.
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公开(公告)号：US10976441B2
公开(公告)日：2021-04-13
申请号：US15607307
申请日：2017-05-26
申请人： JAVAD GNSS, Inc.
发明人： Javad Ashjaee
摘要： Embodiments of the present disclosure relate to a magnetic locator for a GNSS device. The magnetic locator includes a magnetic field sensor configured to detect a magnetic field adjacent the magnetic locator; a controller coupled to the magnetic field sensor and configured to receive from the magnetic field sensor measurement data based on the magnetic field and calculate sensor data based on the received measurement data; a communication interface coupled to the controller and adaptable to transmit sensor data received from the controller to the GNSS device; a connector adaptable to connect the magnetic locator to a GNSS antenna of the GNSS device; and a housing.
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