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1. 发明申请

US20190056505A1 SYSTEM AND METHOD FOR GENERATING A PHASE SCINTILLATION MAP UTILIZED FOR DE-WEIGHTING OBSERVATIONS FROM GNSS SATELLITES 审中-公开
公开(公告)号：US20190056505A1
公开(公告)日：2019-02-21
申请号：US15679758
申请日：2017-08-17
申请人： NovAtel Inc.
发明人： Thomas Morley
IPC分类号： G01S19/04 , G01S19/43 , G01S19/07 , G01S19/05 , G01S19/08
CPC分类号： G01S19/08 , G01S19/05 , G01S19/07 , G01S19/28 , G01S19/43
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.

2. 发明申请

US20180313960A1 METHODS AND SYSTEMS FOR OPTIMAL VEHICLE POSITIONING USING GLOBAL POSITIONING RECEIVERS FROM PARKED FLEET 审中-公开
公开(公告)号：US20180313960A1
公开(公告)日：2018-11-01
申请号：US15499798
申请日：2017-04-27
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： UPALI P. MUDALIGE , SHUQING ZENG , CURTIS L. HAY
IPC分类号： G01S19/46 , G01S19/04 , G01S19/05 , H04L29/08
CPC分类号： G01S19/46 , G01S19/04 , G01S19/05 , H04L67/12
摘要： Methods and systems are provided for determining a vehicle position. In one embodiment, a method includes: receiving, by a processor of a rover vehicle, vehicle position data from one or more parked vehicles; receiving, by the processor of the rover vehicle, global positioning system data from a GPS receiver of the rover vehicle; and processing, by the processor of the rover vehicle, the vehicle position data and the global position system data to determine a position of the rover vehicle.

3. 发明申请

US20180210063A1 SYSTEM FRAMEWORK FOR MOBILE DEVICE LOCATION 审中-公开
公开(公告)号：US20180210063A1
公开(公告)日：2018-07-26
申请号：US15933262
申请日：2018-03-22
申请人： ETHERWHERE CORPORATION
发明人： Farrokh Farrokhi
IPC分类号： G01S5/02 , G01S19/42 , G01S19/05
CPC分类号： G01S5/0252 , G01S19/05 , G01S19/42
摘要： A system for measuring the pseudo range from a target GPS sensor to a designated navigational satellite, for use in a satellite positioning system (SPS) is comprised of multiple GPS sensors for receiving and recording portions of the signals transmitted by designated navigational satellites, the recordings referred to as datagrams; and means for transmitting the datagrams to a datagram processing facility wherein the pseudo range from the target GPS sensor to the designated navigational satellite is derived. The datagram processing facility for deriving the pseudo range is further comprised of a pseudo range engine for deriving a pseudo range from a datagram originating with said target GPS sensor, the location of which is to be determined, the derivation accomplished with the aid of a perfect reference; a perfect reference engine for generating a perfect reference from one or more satellite-specific datagrams: and a strong signal suppression engine for synthesizing satellite-specific datagrams from I/F signals recorded by reference GPS sensors designated for the express purpose of perfect reference generation. The perfect reference reduces the minimum signal strength required to acquire and accurately track GPS satellites at or near the horizon.

4. 发明授权

US09958551B1 Method and device for determining availability of ARAIM system 有权
公开(公告)号：US09958551B1
公开(公告)日：2018-05-01
申请号：US15723543
申请日：2017-10-03
申请人： Beihang University
发明人： Zhipeng Wang , Yanbo Zhu , Wei Shao , Qiang Li
IPC分类号： G01S19/42 , G01S19/25 , G01S19/05 , G01S19/41 , G01S19/00
CPC分类号： G01S19/42 , G01S19/05 , G01S19/15 , G01S19/20 , G01S19/256 , G01S19/41
摘要： A method for evaluating the availability of ARAIM system is provided. A satellite position coordinate and clock offset of each satellite at a current time point and several time points before the current time point are received. Empirical mode decomposition is performed on the position coordinate and the clock offset respectively, to obtain a position coordinate mode component and a clock offset mode component of each satellite at each time point. A position coordinate mode component and a clock offset mode component of each satellite at a time point next to the current time point are obtained respectively. According to the position coordinate mode component and the clock offset mode component of each satellite at the time point next to the current time point, a position coordinate mode component and a clock offset mode component of each satellite at a next time point is obtained, thereby obtaining an evaluation result.

5. 发明授权

US09945952B2 Method of geo localization of a terminal sending a single signal to a satellite system 有权
公开(公告)号：US09945952B2
公开(公告)日：2018-04-17
申请号：US14083745
申请日：2013-11-19
申请人： EUTELSAT S A
发明人： Antonio Arcidiacono , Daniele Vito Finocchiaro , Alessandro Le Pera
IPC分类号： G01S19/05 , G01S19/00 , G01S5/02
CPC分类号： G01S19/00 , G01S5/02 , G01S19/05
摘要： A method for localizing a terminal includes transmitting the signal by the terminal; receiving the signal by a first and a second satellite; transmitting the signal from each satellite to a receiving station; demodulating the signal received by the first satellite to determine a signal content and the time of arrival of the signal transmitted by the terminal at the receiving station via the first satellite; determining the time of arrival of the signal transmitted by the terminal at the receiving station via the first and second satellite; determining a position for the terminal by triangulation.

6. 发明授权

US09933524B2 Satellite-based position determination 有权
公开(公告)号：US09933524B2
公开(公告)日：2018-04-03
申请号：US14639179
申请日：2015-03-05
申请人： Intel Mobile Communications GmbH
发明人： Markus Hammes , Andreas Schmid
IPC分类号： G01S19/05 , G01S19/25 , G01S19/46 , G01S19/02 , G01S19/24 , G01S19/26 , G01S19/03 , G01S19/13 , H04W4/02 , G01S5/02 , H04W84/12
CPC分类号： G01S19/05 , G01S5/0263 , G01S19/03 , G01S19/13 , G01S19/24 , G01S19/25 , G01S19/256 , G01S19/26 , G01S19/46 , H04W4/025 , H04W84/12
摘要： Method and apparatuses involving satellite position signals are disclosed. Based on data indicating a usage environment, parameters, for example acquisition parameters or calculation parameters, are adapted.

7. 发明申请

US20180088242A1 METHOD AND SYSTEM FOR DEALING WITH ANTENNA BLOCKAGE IN A LOW EARTH ORBIT CONSTELLATION 审中-公开
公开(公告)号：US20180088242A1
公开(公告)日：2018-03-29
申请号：US15280391
申请日：2016-09-29
申请人： Trevor EAGLING
发明人： Trevor EAGLING
IPC分类号： G01S19/28 , G01S19/23 , G01S19/05
CPC分类号： G01S19/28 , G01S19/05 , G01S19/08 , G01S19/20 , G01S19/258 , H04B7/18513
摘要： A system and method for providing communications with a Low Earth Orbit (LEO) satellite constellation using a non-omnidirectional antenna is disclosed. A system and method for determining blockages around a non-omnidirectional antenna for use with a Low Earth Orbit (LEO) constellation is disclosed. The method including: receiving System Information (SI) including ephemeris data for satellites in the LEO constellation; receiving a segment division that divides a ground about the antenna into segments; and determining a segment blocking information for the antenna. The determining is performed by, for each of the satellites, calculating a current direction from the antenna to the respective satellite based on the respective satellite's ephemeris data, mapping the current direction into one of the segments, aiming the antenna in the current direction, attempting a signal lock with the satellite, and setting the segment blocking information indicating the mapped segment as blocked, when the signal lock is unsuccessful.

8. 发明授权

US09885789B2 Accounting for atmospheric and terrestrial obstacles in geographic positioning 有权
公开(公告)号：US09885789B2
公开(公告)日：2018-02-06
申请号：US13826699
申请日：2013-03-14
申请人： Google Inc.
发明人： Fred P. Pighin , Daniel J. Filip , Scott Ettinger , Bryan Klingner , David Martin
IPC分类号： G01S19/40 , G01S19/07 , G01S19/05 , G01S19/42
CPC分类号： G01S19/40 , G01S19/05 , G01S19/07 , G01S19/42
摘要： A position fix identifying a geographic location of a receiver is received. The position fix was generated using signals received at the receiver from respective high-altitude signal sources (such as satellites). Imagery of a geographic area that includes the geographic location is also received. The imagery is automatically processed to determine whether one or more of the high-altitude signal sources were occluded from the geographic location when the position fix was generated. In response to determining that one or more of the high-altitude signal sources were occluded from the geographic location when the position fix was generated, the position fix is identified as being potentially erroneous.

9. 发明申请

US20180024247A1 LOW-ENERGY CONSUMPTION LOCATION OF MOVABLE OBJECTS 审中-公开
公开(公告)号：US20180024247A1
公开(公告)日：2018-01-25
申请号：US15454976
申请日：2017-03-09
申请人： Gatekeeper Systems, Inc.
发明人： Scott J. Carter
IPC分类号： G01S19/05 , G01S19/28 , G01S19/09 , G01S19/34 , G01S19/25 , G01S19/14 , G01S19/11 , H04W4/02 , G01S19/06 , G01S19/49 , G01S19/41
CPC分类号： G01S19/05 , G01S19/06 , G01S19/09 , G01S19/11 , G01S19/14 , G01S19/252 , G01S19/256 , G01S19/28 , G01S19/34 , G01S19/41 , G01S19/49 , H04W4/02 , H04W4/029
摘要： Low-energy consumption techniques for locating a movable object using a global satellite navigation system (GNSS) are provided. A mobile station attached to or included in a movable object can communicate bidirectionally with a fixed base station to determine a location of the movable object. The mobile station may communicate an estimated position to the base station and receive from the base station a set of GNSS satellites that are visible to the mobile station. The mobile station can acquire satellite timing information from GNSS signals from the set of satellites and communicate minimally-processed satellite timing information to the base station. The base station can determine the position of the mobile station and communicate the position back to the mobile station. By offloading much of the processing to the base station, energy consumption of the mobile station is reduced.

10. 发明授权

US09864066B2 Portable biometric monitoring devices having location sensors 有权
公开(公告)号：US09864066B2
公开(公告)日：2018-01-09
申请号：US14656260
申请日：2015-03-12
申请人： Fitbit, Inc.
发明人： James Park , Heiko Gernot Albert Panther , Shelten Gee Jao Yuen
IPC分类号： G01S19/48 , G01S19/25 , G01S19/27 , G01S19/14 , G01S19/00 , H04L29/08 , H04N5/232 , H04N7/18 , G01S19/42 , G01S19/19 , G06F19/00 , H04B7/185 , H04W4/00 , H04W4/02 , G01S19/05 , G01S19/09
CPC分类号： G01S19/258 , G01S19/00 , G01S19/05 , G01S19/09 , G01S19/14 , G01S19/19 , G01S19/27 , G01S19/42 , G06F19/3418 , G16H40/67 , H04B7/18513 , H04L67/12 , H04L67/125 , H04L67/18 , H04N5/23206 , H04N7/185 , H04W4/02 , H04W4/80 , Y02B70/16 , Y02D70/00 , Y02D70/1224 , Y02D70/1244 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/162 , Y02D70/164 , Y02D70/166 , Y02D70/26 , Y02D70/446
摘要： Assisted-GPS for a portable biometric monitoring device is provided. The portable biometric monitoring device may obtain updated ephemeris data from an associated secondary device via a short-range, low-power communication protocol. The secondary device may be a computing device such as a smartphone, tablet, or laptop. Various rules may control when the ephemeris data is updated. The ephemeris data may be used in the calculation of the global position of the portable biometric monitoring device. Additionally, the portable biometric monitoring device may communicate downloaded position fixing data to the associated secondary device. The associated secondary device may then calculate the global position from the position fixing data.

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