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1. 发明申请

WO2008008146A3 A METHOD FOR INCREASING THE RELIABILITY OF POSITION INFORMATION WHEN TRANSITIONING FROM A REGIONAL, WIDE-AREA, OR GLOBAL CARRIER-PHASE DIFFERENTIAL NAVIGATION (WADGPS) TO A LOCAL REAL-TIME KINEMATIC (RTK) NAVIGATION SYSTEM 审中-公开
标题翻译：一种从区域，宽域或全球载波相差导航（WADGPS）向本地实时动态（RTK）导航系统过渡时提高位置信息可靠性的方法
公开(公告)号：WO2008008146A3
公开(公告)日：2008-04-10
申请号：PCT/US2007013814
申请日：2007-06-13
申请人： NAVCOM TECH INC , ESLINGER DANIEL J , SUN JING , SHARPE RICHARD T , NELSON FREDERICK W , PICKETT TERENCE D , HATCH RONALD R
发明人： ESLINGER DANIEL J , SUN JING , SHARPE RICHARD T , NELSON FREDERICK W , PICKETT TERENCE D , HATCH RONALD R
IPC分类号： G01S19/48 , G01S19/43 , G01S19/44
CPC分类号： G01S19/48 , G01S19/43 , G01S19/44
摘要： The present invention includes a method for a combined use of a local positioning system, a local RTK system and a regional, wide-area, or global differential carrier-phase positioning system (WADGPS) in which disadvantages associated with the local positioning system, the RTK and the WADGPS navigation techniques when used separately are avoided. The method includes determining a first position of the object based on information from the WADGPS, and determining a second position of the object based on position information from a local positioning / RTK positioning system. Thereafter, position determined by the WADGPS and the position determined by the local positioning / RTK positioning system are compared. The WADGPS position is used for navigating the object when the WADGPS position and local positioning / position differ by more than a predefined threshold, and using the local positioning / RTK position for navigating the object when the WADGPS position and local positioning / RTK position differ by less than the predefined threshold.
摘要翻译：本发明包括一种组合使用本地定位系统，本地RTK系统和区域广域或全球差分载波相位定位系统（WADGPS）的方法，其中与本地定位系统相关的缺点避免使用RTK和WADGPS导航技术。该方法包括基于来自WADGPS的信息来确定对象的第一位置，并且基于来自本地定位/ RTK定位系统的位置信息确定对象的第二位置。此后，比较由WADGPS确定的位置和由本地定位/ RTK定位系统确定的位置。当WADGPS位置和本地定位/位置相差超过预定阈值时，WADGPS位置用于导航对象，并且当WADGPS位置和本地定位/ RTK位置相差不同时使用本地定位/ RTK位置来导航对象小于预定阈值。

2. 发明申请

WO2005043186A3 METHOD FOR GENERATING CLOCK CORRECTIONS FOR A WIDE-AREA OR GLOBAL DIFFERENTIAL GPS SYSTEM 审中-公开
标题翻译：生成广域或全球差分GPS系统时钟校正的方法
公开(公告)号：WO2005043186A3
公开(公告)日：2005-10-20
申请号：PCT/US2004023461
申请日：2004-07-20
申请人： NAVCOM TECH INC , SHARPE RICHARD T , HATCH RONALD R , NELSON FREDERICK W
发明人： SHARPE RICHARD T , HATCH RONALD R , NELSON FREDERICK W
IPC分类号： G01S5/14 , G01S19/07 , G01S19/41 , G01S19/48
CPC分类号： G01S19/07 , G01S19/41
摘要： A method for generating satellite clock corrections for a WADGPS network computes satellite dock corrections after removing other substantial error components. Errors caused by the ionospheric refraction effects are removed from GPS measurements taken at reference stations using dual-frequency GPS measurements. The multipath noise are removed by smoothing of GPS pseudorange code measurements with carrier-phase measurements. The tropospheric refraction effect can be largely removed by modeling, and if desired, can be improved by the use of small stochastic adjustments included in the computation of the clock correction. After removing the above error factors, satellite clock corrections are computed for individual reference stations, and an average clock correction is formed for each of a plurality of satellites by taking an average or weighted average of the satellite clock corrections over reference stations to which the satellite is visible.
摘要翻译：用于生成WADGPS网络的卫星时钟校正的方法在移除其他实质性误差分量之后计算卫星坞站校正。使用双频GPS测量，在参考站进行的GPS测量中将消除由电离层折射效应引起的误差。通过使用载波相位测量平滑GPS伪距代码测量来消除多径噪声。通过建模可以很大程度地消除对流层折射效应，并且如果需要，可以通过使用包括在时钟校正计算中的小随机调整来改善。在去除上述误差因素之后，针对各个参考站计算卫星时钟校正，并且通过对该卫星参考站取得卫星时钟校正的平均或加权平均值，为多个卫星中的每一个形成平均时钟校正是可见的。

3. 发明申请

WO2005027283A3 METHOD FOR RECEIVER AUTONOMOUS INTEGRITY MONITORING AND FAULT DETECTION AND ELIMINATION 审中-公开
标题翻译：接收机自动化监控和故障检测和消除的方法
公开(公告)号：WO2005027283A3
公开(公告)日：2005-06-02
申请号：PCT/US2004027344
申请日：2004-08-19
申请人： NAVCOM TECH INC , HATCH RONALD R , SHARPE RICHARD T , YANG YUNCHUN
发明人： HATCH RONALD R , SHARPE RICHARD T , YANG YUNCHUN
IPC分类号： G01S19/48 , G01S1/00 , G01S19/20
CPC分类号： G01S19/20
摘要： A method for detecting and identifying a faulty measurement among a plurality of GPS measurements, obtained by a GPS receiver with respect to a plurality of satellites in view of the GPS receiver, determines whether the plurality', of GPS measurements include a faulty measurement. In response to a determination that the plurality of GPS measurements include a faulty measurement, the method identifies a satellite contributing the faulty measurement by computing a correlation value associated with each of the plurality of satellites, and selecting a satellite associated with a highest correlation value as the satellite contributing the faulty measurement.
摘要翻译：根据GPS接收机，通过GPS接收机相对于多个卫星获得的多个GPS测量结果中检测和识别故障测量的方法确定多个GPS测量是否包括故障测量。响应于多个GPS测量包括故障测量的确定，该方法通过计算与多个卫星中的每一个相关联的相关值来识别贡献故障测量的卫星，并且选择与最高相关值相关联的卫星作为该卫星造成有缺陷的测量。

4. 发明申请

WO2007089767A8 A METHOD FOR COMBINED USE OF A LOCAL POSITIONING SYSTEM, A LOCAL RTK SYSTEM, AND A REGIONAL, WIDE- AREA, OR GLOBAL CARRIER-PHASE POSITIONING SYSTEM 审中-公开
标题翻译：组合使用本地定位系统，本地RTK系统和区域，宽域或全球载波相位系统的方法
公开(公告)号：WO2007089767A8
公开(公告)日：2008-10-02
申请号：PCT/US2007002514
申请日：2007-01-31
申请人： NAVCOM TECH INC , HATCH RONALD R , STEPHENS SCOTT ADAM
发明人： HATCH RONALD R , STEPHENS SCOTT ADAM
IPC分类号： G01S19/48 , G01S5/14 , G01S19/41 , G01S19/44
CPC分类号： G01S19/41 , G01S19/44
摘要： The present invention includes a method for a combined use of a local positioning system (174), a local RTK system (150) and a regional, wide-area, or global differential carrier-phase positioning system (100) (WADGPS) in which disadvantages associated with the local positioning system (174), the RTK (150) and the WADGPS (100) navigation techniques when used separately are avoided. The method includes using a known position of a user receiver (142) that has been stationary or using ah RTK system (150) to initialize the floating ambiguity values in the WADGPS system (100) when the user receiver (142) is moving. Thereafter, the refraction-corrected carrier-phase measurements obtained at the user GPS receiver (142) are adjusted by including the corresponding initial floating ambiguity values and the floating ambiguity values are treated as well known (small variance) in subsequent processes to position the user receiver (142) in the WADGPS system (100).
摘要翻译：本发明包括用于组合使用本地定位系统（174），本地RTK系统（150）和区域，广域或全球差分载波相位定位系统（100）（WADGPS）的方法，其中避免了与本地定位系统（174），RTK（150）和WADGPS（100）导航技术相关联的缺点。该方法包括使用已经静止的用户接收器（142）的已知位置，或者当用户接收机（142）移动时，使用该RTK系统（150）来初始化WADGPS系统（100）中的浮动模糊度值。此后，通过包括对应的初始浮动模糊度值来调整在用户GPS接收机（142）处获得的经折射校正的载波相位测量，并且在随后的处理中将浮动模糊度值视为已知的（小的方差），以定位用户 WADGPS系统（100）中的接收器（142）。

5. 发明申请

WO2007089767A3 A METHOD FOR COMBINED USE OF A LOCAL POSITIONING SYSTEM, A LOCAL RTK SYSTEM, AND A REGIONAL, WIDE- AREA, OR GLOBAL CARRIER-PHASE POSITIONING SYSTEM 审中-公开
标题翻译：组合使用本地定位系统，本地RTK系统以及区域性，广域或全球载波相位定位系统的方法
公开(公告)号：WO2007089767A3
公开(公告)日：2007-10-11
申请号：PCT/US2007002514
申请日：2007-01-31
申请人： NAVCOM TECH INC , HATCH RONALD R , STEPHENS SCOTT ADAM
发明人： HATCH RONALD R , STEPHENS SCOTT ADAM
IPC分类号： G01S19/48 , G01S5/14 , G01S19/41 , G01S19/44
CPC分类号： G01S19/41 , G01S19/44
摘要： The present invention includes a method for a combined use of a local positioning system (174), a local RTK system (150) and a regional, wide-area, or global differential carrier-phase positioning system (100) (WADGPS) in which disadvantages associated with the local positioning system (174), the RTK (150) and the WADGPS (100) navigation techniques when used separately are avoided. The method includes using a known position of a user receiver (142) that has been stationary or using ah RTK system (150) to initialize the floating ambiguity values in the WADGPS system (100) when the user receiver (142) is moving. Thereafter, the refraction-corrected carrier-phase measurements obtained at the user GPS receiver (142) are adjusted by including the corresponding initial floating ambiguity values and the floating ambiguity values are treated as well known (small variance) in subsequent processes to position the user receiver (142) in the WADGPS system (100).
摘要翻译：本发明包括用于组合使用本地定位系统（174），本地RTK系统（150）和区域性，广域或全球差分载波相位定位系统（100）（WADGPS）的方法，其中，避免了与本地定位系统（174），RTK（150）和WADGPS（100）单独使用时的导航技术相关的缺点。该方法包括当用户接收机（142）移动时，使用已经静止的用户接收机（142）的已知位置或使用RTK系统（150）初始化WADGPS系统（100）中的浮动模糊度值。此后，通过包括相应的初始浮点模糊度值来调整在用户GPS接收器（142）处获得的折射校正的载波相位测量值，并且在随后的过程中将浮点模糊度值众所周知（小方差）以对用户进行定位接收器（142）在WADGPS系统（100）中。

6. 发明申请

WO2005036202B1 METHOD FOR USING THREE GPS FREQUENCIES TO RESOLVE CARRIER-PHASE INTEGER AMBIGUITIES 审中-公开
标题翻译：使用三种GPS频率解决载波相位整体性能的方法
公开(公告)号：WO2005036202B1
公开(公告)日：2005-05-12
申请号：PCT/US2004033482
申请日：2004-10-07
申请人： NAVCOM TECH INC , HATCH RONALD R
发明人： HATCH RONALD R
IPC分类号： G01S19/04 , G01S19/07 , G01S19/22 , G01S19/41 , G01S19/44 , G01S19/48 , G01S5/14
CPC分类号： G01S19/44 , G01S19/41
摘要： The present invention includes a method for generating an ambiguity-resolved, refraction-corrected, and noise-minimized carrier-phase measurement- The method includes forming a first composite measurement using GPS carrier-phase measurements on the L1, L2 and L5 frequencies. To reduce the noise in the first composite measurement, the method further includes forming a second composite measurement using GPS carrier-phase measurements on at least two of the three GPS carrier frequencies. The second composite measurement is formed to have a small multi-path noise therein so that it can be used to smooth the first composite measurement so that the multipath noise is minimized.
摘要翻译：本发明包括用于生成模糊度分辨，折射校正和噪声最小化的载波相位测量的方法。该方法包括在L1，L2和L5频率上使用GPS载波相位测量形成第一复合测量。为了减少第一复合测量中的噪声，该方法还包括在三个GPS载波频率中的至少两个GPS载波频率上使用GPS载波相位测量形成第二复合测量。第二组合测量被形成为在其中具有小的多路径噪声，使得它可以用于平滑第一组合测量，使得多路径噪声最小化。

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