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1. 发明申请

WO2022098803A2 METHODS OF AND SYSTEMS FOR REMOTELY MONITORING STATIONARY SYSTEMS USING GNSS-BASED TECHNOLOGIES 审中-公开
公开(公告)号：WO2022098803A2
公开(公告)日：2022-05-12
申请号：PCT/US2021/057964
申请日：2021-11-03
申请人： 2KR SYSTEMS, LLC , DUNDORF, Christopher , MELVIN, Patrick
发明人： DUNDORF, Christopher , MELVIN, Patrick
IPC分类号： G01S19/23 , G01S19/51 , G01S19/53 , G01S19/14 , G01M5/0041 , G01S19/02 , G01S19/04 , G01S19/243 , G01S19/33 , G01S19/35 , G01S19/41 , G01S19/43 , G01S19/44
摘要： Methods of and apparatus for remotely monitoring the spatial displacement, distortion and/or deformation of stationary systems having diverse structures, typically but not necessarily relating to civil and environmental infrastructure, in response to internally and/or externally generated forces, using new and improved GNSS signal processing methods that enable automated detection of displacement, distortion and/or deformation exceeding predetermined thresholds.

2. 发明申请

WO2022098783A1 METHODS OF AND SYSTEMS FOR REMOTELY MONITORING MOBILE SYSTEMS USING GNSS-BASED TECHNOLOGIES 审中-公开
公开(公告)号：WO2022098783A1
公开(公告)日：2022-05-12
申请号：PCT/US2021/057933
申请日：2021-11-03
申请人： 2KR SYSTEMS, LLC
发明人： DUNDORF, Christopher , MELVIN, Patrick
IPC分类号： G01S19/23 , G01S19/51 , G01S19/53
摘要： Methods of and apparatus for remotely monitoring the spatial displacement, distortion and/or deformation of mobile systems, having diverse structures, in response to internally and/or externally generated forces, using new and improved GNSS signal processing methods that enable automated detection of displacement, distortion and/or deformation exceeding predetermined thresholds.

3. 发明申请

WO2022052196A1 基于频率补偿的GNSS信号跟踪环路失锁检测方法审中-公开
公开(公告)号：WO2022052196A1
公开(公告)日：2022-03-17
申请号：PCT/CN2020/120121
申请日：2020-10-10
申请人：南京低功耗芯片技术研究院有限公司
发明人：王强
IPC分类号： G01S19/23 , G01S19/37
摘要：本发明公开了一种基于频率补偿的GNSS信号跟踪环路失锁检测方法，包括如下步骤：对下变频、剥离伪码、积分清除后的I路和Q路信号进行多路频率补偿；然后进行固定时间的相干积分和非相干积分，将非相干积分结果最大值作为信号值；进行抛物线插值频率鉴定，将频率差为±50H和±100Hz非相干积分结果的均值作为噪声值；最后计算信号值与噪声值之间比值，将其作为检测量进行失锁检测。本发明方法克服噪声信号的不利影响，提高GNSS信号的失锁判断的实时性和准确性，确保在复杂信号干扰、低功率条件下能够及时、准确地判断环路状态。

4. 发明申请

WO2021174255A1 TIMING ERROR ADJUSTMENT IN MOBILE DEVICES 审中-公开
公开(公告)号：WO2021174255A1
公开(公告)日：2021-09-02
申请号：PCT/US2021/070196
申请日：2021-02-25
申请人： QUALCOMM INCORPORATED
发明人： CRARY, Philip , LI, Troy , SCIGLIANO, Scott
IPC分类号： H04W56/00 , G01S19/34 , G01S19/23
摘要： System and method for adjusting timing error in a mobile device. In the mobile device, a crystal oscillator (XO) is used by a system timer as the timing source. When the mobile device enters into a sleep mode, the system timer is set to time the duration of the sleep mode. During the sleep mode, a thermistor is used to measure and monitor the temperature changes of the XO. After the sleep mode is over, a processor in the mobile device determines the frequency changes of the XO based on the temperature changes of the XO. Based on the frequency changes of the XO, the processor determines the timing error that may have occurred when the system timer was timing the sleep mode and determines the actual duration of the sleep mode by adjusting the duration timed by the system timer based on the timing error.

5. 发明申请

WO2021052511A1 北斗机载设备RAIM性能符合性测试方法及系统审中-公开
公开(公告)号：WO2021052511A1
公开(公告)日：2021-03-25
申请号：PCT/CN2020/120159
申请日：2020-10-10
申请人：中国民航大学
发明人：刘瑞华 , 丁其金
IPC分类号： G01S19/23
摘要：一种北斗机载设备RAIM性能符合性测试方法及系统，该方法包括：获取北斗历书参数以及测试参数（101）；根据历书参数以及测试参数判断各卫星是否可见（102）；当各卫星可见时，获得时空样品点（103）；计算各时空样品点HPL值（104）；根据HPL值选取边缘卫星几何分布点（105）；对时空样品点和边缘卫星几何分布点进行测试，得到第一测试结果（106）；获取各边缘卫星几何分布点的卫星导航矢量信号源的配置参数和北斗历书（107）；对配置参数和北斗历书进行解析，得到可见星数量（108）；判断可见星数量是否大于阈值（109）；若是，对各边缘卫星几何分布点进行测试，得到第二测试结果（110）；判断第一测试结果与第二测试结果是否匹配（111），该方法能够检验北斗机载设备是否满足适航要求。

6. 发明申请

WO2021021212A1 INTER-FREQUENCY SIGNAL AIDING FOR TRACKING SATELLITE NAVIGATION SIGNALS 审中-公开
公开(公告)号：WO2021021212A1
公开(公告)日：2021-02-04
申请号：PCT/US2019/044698
申请日：2019-08-01
申请人： THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE
发明人： YANG, Rong , MORTON, Yu
IPC分类号： G01S19/00 , G01S19/13 , G01S19/23 , G01S19/24 , G01S19/25 , G01S19/29 , G01S19/32 , G01S19/36 , G01S19/37
摘要： Various embodiments of the present technology generally relate to multi-frequency satellite navigation receiver technology. More specifically, some embodiments relate to an inter-frequency signal aiding technique for multi-frequency signal tracking in a multi-frequency receiver. The present technology enables a satellite navigation receiver (such as GPS) to continue operation, or to have improved performance, in environments where signals on one or more frequency bands experience fading. Some embodiment can estimate parameters of signal channels that experience fading based on measurements obtained from all or other less compromised frequency bands in linear operation by the receiver. Some embodiments can optimally estimate carrier parameters of navigation signals with consideration of relative measurement qualities. These parameters are used to construct the local reference signals, maintain lock on the fading signals, and obtain accurate positioning solutions and remote sensing observations.

7. 发明申请

WO2020139578A1 ERROR CORRECTION IN GPS SIGNAL 审中-公开
公开(公告)号：WO2020139578A1
公开(公告)日：2020-07-02
申请号：PCT/US2019/066085
申请日：2019-12-12
申请人： ALIBABA GROUP HOLDING LIMITED
发明人： LIN, Ming , SONG, Xiaomin , QIAN, Qi , SUN, Liang , ZHU, Shenghuo , JIN, Rong
IPC分类号： G01S19/23
摘要： Methods and systems for correcting an error of a GPS signal are provided. The method includes receiving a request for positioning service from a computing device at a location; estimating a Total Electron Content (vTEC) value associated with the location of the object based at least in part on a plurality of vTEC values of a plurality of ground stations equipped with a plurality of GPS receivers, the vTEC value being estimated based on an estimator that is trained using a filter-reweight-retrain robust algorithm; and sending information of the estimated vTEC value to the computing device to allow the computing device to correct an error of a GPS signal received by the computing device, the error of the GPS signal being associated with an ionospheric delay.

8. 发明申请

WO2019192830A1 VERFAHREN ZUR ERMITTLUNG DER POSITION EINES FAHRZEUGS 审中-公开
公开(公告)号：WO2019192830A1
公开(公告)日：2019-10-10
申请号：PCT/EP2019/056747
申请日：2019-03-19
申请人： CONTINENTAL TEVES AG & CO. OHG
发明人： ZALEWSKI, Michael
IPC分类号： G01S19/23
摘要： Die Erfindung betrifft ein Verfahren zur Ermittlung der Position eines Fahrzeugs mittels einer Sensoreinheit (IMU), einer Empfangseinrichtung zum Empfangen von Signalen eines Satelliten eines Satellitennavigationssystems, sowie einer elektronischen Filtereinrichtung, umfassend die Schritte: Empfangen von Satellitendaten eines Satelliten durch die Empfangseinrichtung und von Sensordaten durch die Sensoreinheit (IMU), Zuführen der Sensordaten sowie der Satellitendaten an die Filtereinrichtung, Umrechnen der Satellitendaten durch die Filtereinrichtung auf einen Bezugspunkt, der der Position der Sensoreinheit (IMU) entspricht, Ermitteln der Position des Fahrzeugs mittels der Filtereinrichtung durch Filtern und/oder Fusionieren der Satellitendaten und der Sensordaten.

9. 发明申请

WO2017165085A9 DETERMINING A TIME CALIBRATION VALUE FOR A USER EQUIPMENT 审中-公开
公开(公告)号：WO2017165085A9
公开(公告)日：2017-09-28
申请号：PCT/US2017/019726
申请日：2017-02-27
申请人： QUALCOMM INCORPORATED
发明人： DO, Ju-yong , PON, Rayman Wai , ZHANG, Gengsheng
IPC分类号： G01S19/23 , G01S5/02
摘要： In an embodiment, a given entity obtains a location of at least one terrestrial transmit station of a Synchronized Wireless Transmission Network (SWTN), transmit station calibration information associated with the at least one terrestrial transmit station and a location of a user equipment (UE) that is in wireless communication range with the at least one terrestrial transmit station. The given entity estimates the time calibration value for the UE based on the obtained transmit station location, the determined transmit station calibration information and the determined location of the UE. In another embodiment, a server obtains time calibration values that are estimated for each UE in the population of UEs. The server aggregates the estimated time calibration values based on device model and/or device operation mode, and calculates a representative time calibration value for UEs sharing the device model and/or device operation mode.

10. 发明申请

WO2017165085A1 DETERMINING A TIME CALIBRATION VALUE FOR A USER EQUIPMENT 审中-公开
标题翻译：确定用户设备的时间校准值
公开(公告)号：WO2017165085A1
公开(公告)日：2017-09-28
申请号：PCT/US2017/019726
申请日：2017-02-27
申请人： QUALCOMM INCORPORATED
发明人： DO, Ju-yong , PON, Rayman Wai , ZHANG, Gengsheng
IPC分类号： G01S19/23 , G01S5/02
摘要： In an embodiment, a given entity obtains a location of at least one terrestrial transmit station of a Synchronized Wireless Transmission Network (SWTN), transmit station calibration information associated with the at least one terrestrial transmit station and a location of a user equipment (UE) that is in wireless communication range with the at least one terrestrial transmit station. The given entity estimates the time calibration value for the UE based on the obtained transmit station location, the determined transmit station calibration information and the determined location of the UE. In another embodiment, a server obtains time calibration values that are estimated for each UE in the population of UEs. The server aggregates the estimated time calibration values based on device model and/or device operation mode, and calculates a representative time calibration value for UEs sharing the device model and/or device operation mode.
摘要翻译：在一个实施例中，给定实体获得同步无线传输网络（SWTN）的至少一个地面发射站的位置，与所述至少一个地面发射站相关联的发射站校准信息和与至少一个地面发射台处于无线通信范围内的用户设备（UE）的位置。给定实体基于获得的发射台位置，确定的发射台校准信息和确定的UE的位置来估计UE的时间校准值。在另一个实施例中，服务器获得针对UE群体中的每个UE估计的时间校准值。服务器基于设备模型和/或设备操作模式聚合估计的时间校准值，并且计算共享设备模型和/或设备操作模式的UE的代表性时间校准值。

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