Method and System for Maintaining a GNSS Receiver in a Hot-Start State
    51.
    发明申请
    Method and System for Maintaining a GNSS Receiver in a Hot-Start State 有权
    在热启动状态下维护GNSS接收机的方法和系统

    公开(公告)号:US20130009811A1

    公开(公告)日:2013-01-10

    申请号:US13619571

    申请日:2012-09-14

    IPC分类号: G01S19/42 G01S19/34

    CPC分类号: G01S19/34

    摘要: A GNSS receiver in a wake up state during a standby mode may acquire ephemeris from received GNSS signals such as GPS signals and/or GLONASS signals. When subsequently transitioning from the standby mode to a normal mode operating at a high frequency clock, the acquired ephemeris may be utilized to generate a navigation solution for the GNSS receiver. The GNSS receiver in the wake up state during the standby mode may be switched to operate at the high frequency clock in order to receive GNSS signals. The GNSS receiver may extract complete ephemeris from the received GNSS signals, and may subsequently transition from the wake up state to a sleep state during the standby mode to save power. Radio frequency front-end components of the GNSS receiver may only be turned on to receive the GNSS signals. The GNSS receiver may transition between the standby mode and the normal mode.

    摘要翻译: 在待机模式期间处于唤醒状态的GNSS接收器可从接收的GNSS信号(例如GPS信号和/或GLONASS信号)获取星历。 当随后从待机模式转换到以高频时钟运行的正常模式时,所获取的星历可用于为GNSS接收器生成导航解决方案。 在待机模式期间处于唤醒状态的GNSS接收器可以被切换为在高频时钟下工作,以便接收GNSS信号。 GNSS接收机可以从接收到的GNSS信号中提取完整的星历,并且随后可以在待机模式期间从唤醒状态转换到休眠状态以节省功率。 GNSS接收机的射频前端组件只能打开以接收GNSS信号。 GNSS接收器可以在待机模式和正常模式之间转换。

    METHOD AND SYSTEM FOR COMPUTING UNIVERSAL HYBRID NAVIGATION INFORMATION FOR A GNSS ENABLED DEVICE
    52.
    发明申请
    METHOD AND SYSTEM FOR COMPUTING UNIVERSAL HYBRID NAVIGATION INFORMATION FOR A GNSS ENABLED DEVICE 审中-公开
    用于全球导航卫星导航设备的通用混合导航信息的计算方法和系统

    公开(公告)号:US20120098700A1

    公开(公告)日:2012-04-26

    申请号:US13026050

    申请日:2011-02-11

    IPC分类号: G01S19/45

    CPC分类号: G01S19/45 G01S5/021 G01S19/48

    摘要: A Global navigation satellite-based systems (GNSS) enabled device, handling at least two of a plurality of sensors, collects GNSS measurements and navigation related non-GNSS sensor data. The collected navigation related non-GNSS sensor data is automatically formatted into a data format that is compatible with a format of the GNSS measurements. The formatted navigation related non-GNSS sensor data and the GNSS measurements are utilized by a single function to compute navigation information for the GNSS enabled device regardless of sensor configurations such as a cellular radio and/or a motion sensor. Measurement errors in the collected navigation related non-GNSS sensor data is estimated to determine measurement accuracy. The collected navigation related non-GNSS sensor data is selectively adopted, combined with the GNSS measurements, to compute navigation information by the single function based on the determined measurement accuracy. The computed navigation information may be utilized to calibrate sensor and/or sensor data when needed.

    摘要翻译: 处理多个传感器中的至少两个的全球导航卫星系统(GNSS)系统的装置收集GNSS测量和与导航相关的非GNSS传感器数据。 所收集的导航相关非GNSS传感器数据被自动格式化成与GNSS测量格式兼容的数据格式。 无论传感器配置如蜂窝无线电和/或运动传感器如何,通过单个功能利用格式化导航相关的非GNSS传感器数据和GNSS测量来计算GNSS启用设备的导航信息。 估计所收集的导航相关非GNSS传感器数据中的测量误差以确定测量精度。 选择采集所收集的导航相关非GNSS传感器数据,结合GNSS测量,通过基于确定的测量精度的单个功能计算导航信息。 所计算的导航信息可用于在需要时校准传感器和/或传感器数据。

    Method and apparatus for enhanced autonomous GPS
    53.
    发明授权
    Method and apparatus for enhanced autonomous GPS 有权
    增强自主GPS的方法和装置

    公开(公告)号:US08134500B2

    公开(公告)日:2012-03-13

    申请号:US12544614

    申请日:2009-08-20

    IPC分类号: G01S19/05 G01S19/42

    摘要: Method and apparatus for locating position of a remote receiver is described. In one example, long term satellite tracking data is obtained at a remote receiver. Satellite positioning system (SPS) satellites are detected. Pseudoranges are determined from the remote receiver to the detected SPS satellites. Position of the remote receiver is computed using the pseudoranges and the long term satellite tracking data. SPS satellites may be detected using at least one of acquisition assistance data computed using a previously computed position and a blind search. Use of long term satellite tracking data obviates the need for the remote receiver to decode ephemeris from the satellites. In addition, position of the remote receiver is computed without obtaining an initial position estimate from a server or network.

    摘要翻译: 描述了用于定位远程接收机的位置的方法和装置。 在一个示例中,在远程接收器处获得长期卫星跟踪数据。 卫星定位系统(SPS)卫星被检测到。 从远程接收机到检测到的SPS卫星确定伪距。 使用伪距和长期卫星跟踪数据计算远程接收机的位置。 可以使用使用先前计算的位置和盲搜索计算的获取辅助数据中的至少一个来检测SPS卫星。 使用长期卫星跟踪数据避免了远程接收机从卫星解码星历的需要。 此外,在不从服务器或网络获得初始位置估计的情况下,计算远程接收机的位置。

    METHOD AND SYSTEM FOR MAINTAINING A GNSS RECEIVER IN A HOT-STATE
    54.
    发明申请
    METHOD AND SYSTEM FOR MAINTAINING A GNSS RECEIVER IN A HOT-STATE 有权
    用于维护热带地区GNSS接收机的方法和系统

    公开(公告)号:US20110210886A1

    公开(公告)日:2011-09-01

    申请号:US13102979

    申请日:2011-05-06

    IPC分类号: G01S19/38 G01S19/36 G01S19/34

    CPC分类号: G01S19/34

    摘要: A GNSS receiver in a wake up state during a standby mode may acquire ephemeris from received GNSS signals such as GPS signals and/or GLONASS signals. When subsequently transitioning from the standby mode to a normal mode operating at a high frequency clock, the acquired ephemeris may be utilized to generate a navigation solution for the GNSS receiver. The GNSS receiver in the wake up state during the standby mode may be switched to operate at the high frequency clock in order to receive GNSS signals. The GNSS receiver may extract complete ephemeris from the received GNSS signals, and may subsequently transition from the wake up state to a sleep state during the standby mode to save power. Radio frequency front-end components of the GNSS receiver may only be turned on to receive the GNSS signals. The GNSS receiver may transition between the standby mode and the normal mode.

    摘要翻译: 在待机模式期间处于唤醒状态的GNSS接收器可从接收的GNSS信号(例如GPS信号和/或GLONASS信号)获取星历。 当随后从待机模式转换到以高频时钟运行的正常模式时,所获取的星历可用于为GNSS接收机生成导航解决方案。 在待机模式期间处于唤醒状态的GNSS接收器可以被切换为在高频时钟下工作,以便接收GNSS信号。 GNSS接收机可以从接收到的GNSS信号中提取完整的星历,并且随后可以在待机模式期间从唤醒状态转换到休眠状态以节省功率。 GNSS接收机的射频前端组件只能打开以接收GNSS信号。 GNSS接收器可以在待机模式和正常模式之间转换。

    Method and apparatus for computing position using instantaneous doppler measurements from satellites
    55.
    发明授权
    Method and apparatus for computing position using instantaneous doppler measurements from satellites 有权
    使用来自卫星的瞬时多普勒测量来计算位置的方法和装置

    公开(公告)号:US07987048B2

    公开(公告)日:2011-07-26

    申请号:US11311842

    申请日:2005-12-19

    IPC分类号: G01S19/42 G01C21/00

    摘要: Method and apparatus for computing position using instantaneous Doppler measurements from satellites is described. In one example, instantaneous Doppler measurements are measured for a plurality of satellite signals relative to a satellite signal receiver. The instantaneous Doppler measurements are transmitted to a server. Position of the satellite signal receiver is computed at the server using the instantaneous Doppler measurements. In another example, at least one fractional pseudorange is measured between the satellite signal receiver and a respective at least one satellite. At least one instantaneous Doppler measurement is measured for a respective at least one satellite signal relative to the satellite signal receiver. The at least one pseudorange and the at least one instantaneous Doppler measurement are sent to a server. Position of the satellite signal receiver is computed at the server using the at least one pseudorange and the at least one instantaneous Doppler measurement.

    摘要翻译: 描述了使用来自卫星的瞬时多普勒测量来计算位置的方法和装置。 在一个示例中,相对于卫星信号接收机测量多个卫星信号的瞬时多普勒测量。 瞬时多普勒测量被发送到服务器。 使用瞬时多普勒测量在服务器上计算卫星信号接收机的位置。 在另一示例中,在卫星信号接收机和相应的至少一个卫星之间测量至少一个分数伪距。 对于相对于卫星信号接收机的相应的至少一个卫星信号测量至少一个瞬时多普勒测量。 将至少一个伪距和至少一个瞬时多普勒测量发送到服务器。 使用至少一个伪距和至少一个瞬时多普勒测量在服务器处计算卫星信号接收机的位置。

    METHOD AND APPARATUS FOR MAINTAINING INTEGRITY OF LONG-TERM ORBITS IN A REMOTE RECEIVER
    56.
    发明申请
    METHOD AND APPARATUS FOR MAINTAINING INTEGRITY OF LONG-TERM ORBITS IN A REMOTE RECEIVER 审中-公开
    用于维护远程接收器中长期数据的完整性的方法和装置

    公开(公告)号:US20110133985A1

    公开(公告)日:2011-06-09

    申请号:US12857295

    申请日:2010-08-16

    IPC分类号: G01S19/27

    摘要: A method and apparatus for maintaining integrity of long-term-orbit information used by a Global-Navigation-Satellite-System or other positioning receiver is described. The method comprises obtaining a predicted pseudorange from a first set of long-term-orbit information possessed by a positioning receiver; obtaining, at the positioning receiver from at least one satellite, a measured pseudorange; determining validity of the predicted pseudorange as a function of the predicted pseudorange and the measured pseudorange; and excluding from the long-term-orbit information at least a portion thereof when the validity of the predicted pseudorange is deemed invalid. Optionally, the method may comprise updating or otherwise supplementing the long-term-orbit information with other orbit information if the validity of the predicted pseudorange is deemed invalid.

    摘要翻译: 描述了一种用于保持由全球导航卫星系统或其他定位接收机使用的长期轨道信息的完整性的方法和装置。 该方法包括从定位接收机拥有的第一组长期轨道信息获得预测伪距; 在来自至少一个卫星的定位接收机处获得测量的伪距; 确定作为预测伪距和所测量的伪距的函数的预测伪距的有效性; 并且当所述预测伪距的有效性被认为是无效时,将所述长期轨道信息的至少一部分排除。 可选地,如果预测的伪距的有效性被认为是无效的,该方法可以包括更新或补充具有其他轨道信息的长期轨道信息。

    Method and system for maintaining a GNSS receiver in a hot-start state
    57.
    发明授权
    Method and system for maintaining a GNSS receiver in a hot-start state 有权
    用于将GNSS接收机维持在热启动状态的方法和系统

    公开(公告)号:US07948434B2

    公开(公告)日:2011-05-24

    申请号:US12270759

    申请日:2008-11-13

    IPC分类号: G01S19/29 G01S19/31

    CPC分类号: G01S19/34

    摘要: Aspects of a method and system for maintaining a GNSS receiver in a hot-start state are provided. A GNSS receiver in a standby mode may transition from a sleep state to a wakeup state to acquire ephemeris from, for example, GPS signals, GALILEO signals, and/or GLONASS signals. The acquired ephemeris may be stored and utilized for the GNSS receiver to generate a navigation solution in a normal mode. The GNSS receiver may transition from the normal mode to the sleep state or the wakeup state in standby mode. A sleep period and a wakeup period for the full sleep-wakeup cycle in the standby mode may be predetermined or dynamically adjusted based on required QoS, quality of satellite signals, and/or user inputs. The sleep period and the wakeup period may be selected in a way to ensure a valid and complete ephemeris to be acquired.

    摘要翻译: 提供了一种用于将GNSS接收机维持在热启动状态的方法和系统。 处于待机模式的GNSS接收器可以从休眠状态转换到唤醒状态,以从例如GPS信号,GALILEO信号和/或GLONASS信号获取星历。 所获取的星历可以被存储并用于GNSS接收器以在正常模式下生成导航解决方案。 GNSS接收机可以在待机模式下从正常模式转换到休眠状态或唤醒状态。 可以根据所需的QoS,卫星信号的质量和/或用户输入来预定或动态地调整待机模式下的完全睡眠 - 唤醒周期的睡眠周期和唤醒周期。 可以以确保获得有效且完整的星历表的方式来选择睡眠周期和唤醒周期。

    METHOD AND APPARATUS FOR REDUCING THE TIME REQUIRED TO ACQUIRE A GPS SIGNAL
    59.
    发明申请
    METHOD AND APPARATUS FOR REDUCING THE TIME REQUIRED TO ACQUIRE A GPS SIGNAL 有权
    用于减少获取GPS信号所需的时间的方法和装置

    公开(公告)号:US20090304051A1

    公开(公告)日:2009-12-10

    申请号:US12544600

    申请日:2009-08-20

    IPC分类号: H04B1/707 H04L27/06

    摘要: A method of correlating a digital communications signal is described. In an example, a window is defined equal to a portion of an epoch of the digital communication signal. The digital communication signal is then correlated across the window. A determination is made as to whether a correlation peak results from the correlating. Timing parameters are then established for receiving additional digital communication signals in response to presence of the correlation peak.

    摘要翻译: 描述了一种使数字通信信号相关的方法。 在一个示例中,窗口被定义为等于数字通信信号的时期的一部分。 然后数字通信信号通过窗口相关。 确定相关峰是否由相关产生。 然后建立定时参数以响应于相关峰值的存在而接收附加的数字通信信号。

    Method and apparatus for monitoring the integrity of satellite tracking data used by a remote receiver
    60.
    发明授权
    Method and apparatus for monitoring the integrity of satellite tracking data used by a remote receiver 有权
    用于监测由远程接收机使用的卫星跟踪数据的完整性的方法和装置

    公开(公告)号:US07589667B2

    公开(公告)日:2009-09-15

    申请号:US11289959

    申请日:2005-11-30

    IPC分类号: G01S1/02

    CPC分类号: G01S19/08 G01S19/05

    摘要: A method and apparatus for monitoring the integrity of satellite tracking data used by a remote receiver is described. In one example, a first set of satellite tracking data is received at a server. Integrity data for a second set of satellite tracking data is generated using the first set of satellite tracking data. The integrity data is then transmitted to at least one remote receiver having the second set of satellite tracking data.

    摘要翻译: 描述了用于监视由远程接收机使用的卫星跟踪数据的完整性的方法和装置。 在一个示例中,在服务器处接收第一组卫星跟踪数据。 使用第一组卫星跟踪数据生成第二组卫星跟踪数据的完整性数据。 完整性数据然后被发送到具有第二组卫星跟踪数据的至少一个远程接收机。