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公开(公告)号：US10234562B2
公开(公告)日：2019-03-19
申请号：US13403775
申请日：2012-02-23
Applicant: James M. Janky , Ulrich Vollath , Nicholas C. Talbot
Inventor： James M. Janky , Ulrich Vollath , Nicholas C. Talbot
Abstract: A method and system for delivery of location-dependent time-specific corrections. In one embodiment, a first extended-lifetime correction for a first region is generated. A distribution timetable is used to determine a first time interval for transmitting the first extended-lifetime correction to the first region. The first extended-lifetime correction is then transmitted via a wireless communication network to said first region in accordance with said distribution timetable.
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22.发明申请公开(公告)号：US20120146847A1
公开(公告)日：2012-06-14
申请号：US13403775
申请日：2012-02-23
Applicant: James M. Janky , Ulrich Vollath , Nicholas C. Talbot
Inventor： James M. Janky , Ulrich Vollath , Nicholas C. Talbot
Abstract: A method and system for delivery of location-dependent time-specific corrections. In one embodiment, a first extended-lifetime correction for a first region is generated. A distribution timetable is used to determine a first time interval for transmitting the first extended-lifetime correction to the first region. The first extended-lifetime correction is then transmitted via a wireless communication network to said first region in accordance with said distribution timetable.
Abstract translation: 一种用于传送位置相关时间特定校正的方法和系统。 在一个实施例中，产生用于第一区域的第一延长寿命校正。 分配时间表用于确定用于将第一延长寿命校正发送到第一区域的第一时间间隔。 然后，根据所述分配时间表，第一延长寿命校正通过无线通信网络发送到所述第一区域。
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公开(公告)号：US20090182502A1
公开(公告)日：2009-07-16
申请号：US12336177
申请日：2008-12-16
Applicant: Bruce D. Riter , James M. Janky , Nicholas C. Talbot , Ulrich Vollath
Inventor： Bruce D. Riter , James M. Janky , Nicholas C. Talbot , Ulrich Vollath
Abstract: In a method for refining a position estimate of a low earth orbiting (LEO) satellite a first position estimate of a LEO satellite is obtained with a GNSS receiver on-board the LEO satellite. The first position estimate is communicated to a Virtual Reference Station (VRS) processor. VRS corrections are received at the LEO satellite, the VRS corrections having been calculated for the first position estimate by the VRS processor. The VRS corrections are processed on-board the LEO satellite such that a VRS corrected LEO satellite position estimate of the LEO satellite is generated for the first position estimate.
Abstract translation: 在用于改善低地球轨道（LEO）卫星的位置估计的方法中，利用LEO卫星上的GNSS接收机获得LEO卫星的第一位置估计。 第一位置估计被传送到虚拟参考站（VRS）处理器。 在LEO卫星接收到VRS校正，VRS校正是由VRS处理器计算出的第一位置估计值。 在LEO卫星上处理VRS校正，以便为第一位置估计生成LEO卫星的VRS校正LEO卫星位置估计。
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公开(公告)号：US20080144020A1
公开(公告)日：2008-06-19
申请号：US12002099
申请日：2007-12-13
Applicant: Mark E. Nichols , Nicholas C. Talbot , Gary L. Cain
Inventor： Mark E. Nichols , Nicholas C. Talbot , Gary L. Cain
Abstract: The method of mobile radio positioning aided by a single fan laser comprising: generating a single sloping fan beam by using a stationary fan laser transmitter positioned in a location with known coordinates; detecting the single sloping fan beam by using the mobile laser detector; receiving the averaged low-passed filtered estimate of angular rate of the laser beam; receiving the plurality of main time tags; receiving the plurality of additional time tags; and timing the fan laser beam strike at the rover's location to improve an accuracy in determination of position coordinates of the rover.
Abstract translation: 一种由单个风扇激光辅助的移动无线电定位方法，包括：通过使用定位在已知坐标位置的固定风扇激光发射机产生单个倾斜风扇光束; 通过使用移动式激光探测器检测单个倾斜扇形光束; 接收激光束的角速率的平均低通滤波估计值; 接收多个主时间标签; 接收所述多个附加时间标签; 并且定时使风扇激光束在流动站的位置处打击，以提高确定流动站的位置坐标的准确性。
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Patent Agency Ranking
公开(公告)号：USD567958S1
公开(公告)日：2008-04-29
申请号：US29287398
申请日：2007-07-31
Applicant: Nicholas C. Talbot , Ketan Mistry , Mark Critchley , Kalvin L. Evans
Designer： Nicholas C. Talbot , Ketan Mistry , Mark Critchley , Kalvin L. Evans
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26.发明授权Method for using external constraints to improve the speed and reliability of phase ambiguity resolution in real-time kinematic initialization 失效使用外部约束来提高实时运动学初始化中相位模糊度分辨率的速度和可靠性的方法
公开(公告)号：US5935194A
公开(公告)日：1999-08-10
申请号：US779475
申请日：1997-01-07
Applicant: Nicholas C. Talbot , Michael T. Allison , Mark E. Nichols
Inventor： Nicholas C. Talbot , Michael T. Allison , Mark E. Nichols
CPC classification number: G01S19/44
Abstract: A method for obtaining integer ambiguity solutions based on externally provided constraints, e.g., altitude. Such constraints are useful in reducing the computational burden created by the search problem, and using constraints is particularly more effective when a more limited number of satellite vehicles are visible than is ordinarily the case. The constraints are exercised in a search algorithm. As the branches of the integer ambiguity search tree are traversed, an additional test is used to determine if the current search candidate is compatible with such external constraint. Because a three-dimensional position is associated with each search candidate, the branch clipping is straightforward. The ambiguity candidates are each only acceptable if their locations in space are within a confidence region bound set determined from the external constraint. Any sensor that can provide any combination of x, y, or z position information that is better than that obtainable from GPS code phase is a candidate source of such external constraints.
Abstract translation: 一种基于外部提供的约束（例如高度）获得整数模糊度解的方法。 这样的约束对于减少由搜索问题产生的计算负担是有用的，并且当通常情况下可见的卫星载体数量更有限时，使用约束特别有效。 约束在搜索算法中进行。 当遍历整数模糊搜索树的分支时，使用附加测试来确定当前搜索候选是否与这样的外部约束兼容。 因为三维位置与每个搜索候选者相关联，所以分支剪切是简单的。 只有当它们在空间中的位置在从外部约束确定的置信区域界限集中时，模糊度候选者才可以接受。 任何可以提供x，y或z位置信息的任何组合的传感器，其优于从GPS码相位获得的位置信息，这是这种外部约束的候选来源。
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公开(公告)号：US5862501A
公开(公告)日：1999-01-19
申请号：US946687
申请日：1997-10-07
Applicant: Nicholas C. Talbot , Mark E. Nichols
Inventor： Nicholas C. Talbot , Mark E. Nichols
Abstract: A guidance system for movable machinery comprising a GPS processor unit in a "gorilla box" connected to a shock mounted and protected GPS antenna and an operator display with a lightbar that indicates to an operator of the machinery to steer up/down or left/right.
Abstract translation: 一种用于可移动机械的引导系统，包括连接到震动安装和受保护的GPS天线的“大猩猩盒”中的GPS处理器单元以及具有灯条的操作者显示器，其向操作者指示机器上/下或左/右 。
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公开(公告)号：US5748145A
公开(公告)日：1998-05-05
申请号：US759407
申请日：1996-12-04
Applicant: Nicholas C. Talbot , Michael T. Allison , Peter Griffioen
Inventor： Nicholas C. Talbot , Michael T. Allison , Peter Griffioen
Abstract: A real-time kinematic system includes base and rover GPS units connected by a data link. The rover unit is typically moved to points of interest during a survey while the base remains over a fixed, and known location. An initialization testing program of the present invention is mounted on a personal computer platform that forces in the rover a loss of signal tracking, thus simulating losses in signal reception caused by obstructions of the satellite signals. A complete initialization is forced to occur. The test program uninitializes the RTK solution by causing a loss of integer ambiguities resolution by forcing a loss of lock on one or more satellites. The test program then monitors the subsequent initialization process, e.g., the time needed to search for phase ambiguity candidates, discovering the prevalent satellite geometry, determination of whether the correct ambiguity candidate was found, finding the ratio of the second best to best solution variances of the ambiguity candidates in the list throughout the candidate propagation process or similar statistical test, computing the RMS error of the solution at the time that initialization was declared and after initialization, and calculating the baseline vector between the rover and base at the time of initialization and after initialization. All such statistical parameters are logged and used in post and real-time analyses of the initialization algorithm.
Abstract translation: 实时运动系统包括通过数据链路连接的基站和流动站GPS单元。 流动站单元通常在测量期间移动到感兴趣点，而基座保持在固定的和已知位置上。 本发明的初始化测试程序被安装在个人计算机平台上，其迫使流动站中的信号跟踪丢失，从而模拟由卫星信号的障碍引起的信号接收中的损失。 一个完整的初始化被迫发生。 测试程序通过强制一个或多个卫星上的锁定丢失导致整数模糊度分辨率的损失来初始化RTK解决方案。 测试程序然后监视随后的初始化过程，例如搜索相位模糊候选所需的时间，发现普遍的卫星几何，确定是否找到正确的模糊性候选，找到第二最佳解与最佳解的方差的比率 在候选传播过程中的列表中的歧义候选者或类似的统计测试，在初始化时初始化之后计算解决方案的RMS误差，并且在初始化时计算流动站和基站之间的基线向量，以及 初始化后。 所有这些统计参数被记录并用于初始化算法的后期和实时分析。
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公开(公告)号：US5610614A
公开(公告)日：1997-03-11
申请号：US528506
申请日：1995-09-13
Applicant: Nicholas C. Talbot , Michael T. Allison , Peter Griffioen
Inventor： Nicholas C. Talbot , Michael T. Allison , Peter Griffioen
Abstract: A real-time kinematic system includes base and rover GPS units connected by a data link. The rover unit is typically moved to points of interest during a survey while the base remains over a fixed, and known location. An initialization testing program of the present invention is mounted on a personal computer platform that forces in the rover a loss of signal tracking, thus simulating losses in signal reception caused by obstructions of the satellite signals. A complete initialization is forced to occur. The test program uninitializes the RTK solution by causing a loss of integer ambiguities resolution by forcing a loss of lock on one or more satellites. The test program then monitors the subsequent initialization process, e.g., the time needed to search for phase ambiguity candidates, discovering the prevalent satellite geometry, determination of whether the correct ambiguity candidate was found, finding the ratio of the second best to best solution variances of the ambiguity candidates in the list throughout the candidate propagation process or similar statistical test, computing the RMS error of the solution at the time that initialization was declared and after initialization, and calculating the baseline vector between the rover and base at the time of initialization and after initialization. All such statistical parameters are logged and used in post and real-time analyses of the initialization algorithm.
Abstract translation: 实时运动系统包括通过数据链路连接的基站和流动站GPS单元。 流动站单元通常在测量期间移动到感兴趣点，而基座保持在固定的和已知位置上。 本发明的初始化测试程序被安装在个人计算机平台上，其迫使流动站中的信号跟踪丢失，从而模拟由卫星信号的障碍引起的信号接收中的损失。 一个完整的初始化被迫发生。 测试程序通过强制一个或多个卫星上的锁定丢失导致整数模糊度分辨率的损失来初始化RTK解决方案。 测试程序然后监视随后的初始化过程，例如搜索相位模糊候选所需的时间，发现普遍的卫星几何，确定是否找到正确的模糊性候选，找到第二最佳解与最佳解的方差的比率 在候选传播过程中的列表中的歧义候选者或类似的统计测试，在初始化时初始化之后计算解决方案的RMS误差，并且在初始化时计算流动站和基站之间的基线向量，以及 初始化后。 所有这些统计参数被记录并用于初始化算法的后期和实时分析。
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