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公开(公告)号：WO2015034888A1
公开(公告)日：2015-03-12
申请号：PCT/US2014/053844
申请日：2014-09-03
Applicant: AGCO CORPORATION
Inventor： MATTHEWS, Paul
Abstract: A system for providing information about a plurality of GNSS data sources includes a database for storing information relating to the plurality of GNSS data sources, the database including geographic boundary information and access information associated with each GNSS data source. The system further includes one or more computing devices operative to receive a request for GNSS data source information from a requesting device, wherein the request including a geographic location of the requesting device and, using the database, identify one or more GNSS data sources with geographic boundary information that corresponds to the geographic location of the requesting device. The one or more computing devices are further operable to communicate to the requesting device information relating to the identified one or more GNSS data sources.
Abstract translation: 用于提供关于多个GNSS数据源的信息的系统包括用于存储与多个GNSS数据源有关的信息的数据库，所述数据库包括地理边界信息和与每个GNSS数据源相关联的访问信息。 该系统还包括一个或多个计算设备，其操作以从请求设备接收对GNSS数据源信息的请求，其中所述请求包括请求设备的地理位置，并且使用数据库识别具有地理位置的一个或多个GNSS数据源 对应于请求设备的地理位置的边界信息。 一个或多个计算设备还可操作以向请求设备通信与所识别的一个或多个GNSS数据源相关的信息。
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公开(公告)号：WO2014022930A1
公开(公告)日：2014-02-13
申请号：PCT/CA2013/050240
申请日：2013-03-25
Applicant: NOVATEL INC.
Inventor： FENTON, Patrick C. , ALVES, Paul
IPC: G01S19/12
Abstract: A low-latency centralized RTK system utilizes an RTK server to perform matched updates using base station GNSS measurements from one or more base stations and GNSS measurements from one or more rovers, and the one or more rovers produce RTK solutions based on the results of the matched updates. The RTK server includes one or more processors that perform the matched updates and a transmitter that transmits at least the ambiguities to the rovers. The respective rovers, which have processing power that is sufficient to quickly calculate RTK baselines, utilize the received ambiguities, the base station GNSS measurements received from either the RTK server or the base stations, known base station positions and instantaneous GNSS measurements at the rovers to readily determine and update their RTK baselines and their precise positions.
Abstract translation: 低延迟集中式RTK系统利用RTK服务器使用来自一个或多个基站的基站GNSS测量和来自一个或多个流动站的GNSS测量来执行匹配的更新，并且一个或多个流动站基于 匹配的更新。 RTK服务器包括执行匹配更新的一个或多个处理器和至少将歧义传送到流动站的发射机。 具有足以快速计算RTK基线的处理能力的相应流动站利用所接收的模糊度，从RTK服务器或基站接收到的基站GNSS测量，已知基站位置和在流动站处的瞬时GNSS测量 轻松确定和更新其RTK基线及其精确位置。
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3.发明申请
公开(公告)号：WO2012128979A2
公开(公告)日：2012-09-27
申请号：PCT/US2012/028670
申请日：2012-03-11
Applicant: TRIMBLE NAVIGATION LIMITED , LEANDRO, Leandro , VOLLATH, Ulrich , TALBOT, Nicholas, Charles
Inventor： LEANDRO, Leandro , VOLLATH, Ulrich , TALBOT, Nicholas, Charles
IPC: G01S19/39
Abstract: Methods and apparatus provide for positioning of a rover antenna from GNSS data derived from multi-frequency signals and correction data derived from a network of reference stations. Rover antenna position and multi- frequency ambiguities are estimated at each epoch. An ionospheric filter models variation in ionospheric bias per satellite. A set of ionospheric carrier-phase ambiguities is estimated at least when the multi-frequency ambiguities have attained a predetermined precision. The estimated ionospheric carrier-phase ambiguities are cached. After detecting interruption of signal at the rover antenna and determining reacquisition of signals at the rover antenna, an ionospheric bias per satellite over an interruption interval is predicted. For each satellite, a cached ionospheric carrier- phase ambiguity is combined with a predicted ionospheric bias to obtain a post-interruption ionospheric ambiguity estimate. The post-interruption ionospheric ambiguity estimates are used to aid estimation of rover antenna position after signal reacquisition.
Abstract translation: 方法和装置根据从多频信号导出的GNSS数据和从参考站网络导出的校正数据提供漫游器天线的定位。 漫游器天线位置和多频率模糊度在每个时期估计。 电离层滤波器模拟每颗卫星电离层偏差的变化。 至少当多频率模糊度达到预定精度时，估计一组电离层载波相位模糊度。 估计的电离层载波相位模糊被缓存。 在检测到流动站天线处的信号中断并确定漫游器天线处信号的重新获取之后，预测每个卫星在中断间隔上的电离层偏差。 对于每颗卫星，将缓存的电离层载波相位模糊度与预测的电离层偏差结合起来，以获得中断后电离层模糊度估计。 中断后电离层模糊度估计值用于辅助信号重新获取后对流动站天线位置的估计。
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公开(公告)号：WO2011146196A3
公开(公告)日：2012-02-02
申请号：PCT/US2011033254
申请日：2011-04-20
Applicant: TRIMBLE NAVIGATION LTD , FERGUSON KENDALL
Inventor： FERGUSON KENDALL
IPC: G01S19/20
CPC classification number: G01S19/04
Abstract: In a method of Global Navigation Satellite System (GNSS) reference station integrity monitoring, network Real Time Kinematic (RTK) information is accessed for a location associated with a GNSS reference station. At least one aspect of GNSS information local to the location of the GNSS reference station is compared with a corresponding aspect of the network RTK information. The results of the comparing are monitored for indication of occurrence of compromise to operational integrity of the GNSS reference station.
Abstract translation: 在全球导航卫星系统（GNSS）参考站完整性监测的方法中，针对与GNSS参考站相关联的位置访问网络实时运动（RTK）信息。 将GNSS参考站的位置局部的GNSS信息的至少一个方面与网络RTK信息的相应方面进行比较。 监视比较的结果，以指示对GNSS参考站的操作完整性的危害的发生。
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公开(公告)号：WO2011034616A2
公开(公告)日：2011-03-24
申请号：PCT/US2010/002564
申请日：2010-09-19
Applicant: TRIMBLE NAVIGATION LIMITED , LEANDRO, Rodrigo , GLOCKER, Markus , SEEGER, Stephan
Inventor： LEANDRO, Rodrigo , GLOCKER, Markus , SEEGER, Stephan
CPC classification number: G01S19/04 , G01S19/20 , G01S19/258 , G01S19/37 , G01S19/43
Abstract: Methods and apparatus are described for processing a set of GNSS signal data derived from code observations and carrier-phase observations at multiple receivers of GNSS signals of multiple satellites over multiple epochs, the GNSS signals having at least two carrier frequencies and a navigation message containing orbit information, comprising: obtaining precise orbit information for each satellite, determining at least one set of ambiguities per receiver, each ambiguity corresponding to one of a receiver-satellite link and a satellite-receiver-satellite link, and using at least the precise orbit information, the ambiguities and the GNSS signal data to estimate a phase-leveled clock per satellite.
Abstract translation: 描述了用于在多个历元上处理从多个卫星的GNSS信号的多个接收器处的代码观测值和载波相位观测值导出的一组GNSS信号数据的方法和设备，所述GNSS信号具有至少两个 载波频率和包含轨道信息的导航消息，包括：获得每个卫星的精确轨道信息，确定每个接收机的至少一组模糊度，每个模糊度对应于卫星接收机链路和卫星接收机卫星链路之一， 并至少使用精确的轨道信息，模糊度和GNSS信号数据来估计每个卫星的相位均衡时钟。
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Patent Agency Ranking
公开(公告)号：WO2010096190A3
公开(公告)日：2010-12-16
申请号：PCT/US2010000496
申请日：2010-02-20
Applicant: TRIMBLE NAVIGATION LTD , VOLLATH ULRICH , TALBOT NICHOLAS CHARLES
Inventor： VOLLATH ULRICH , TALBOT NICHOLAS CHARLES
Abstract: Methods and apparatus are presented for improved productivity in determining static position of an antenna of a GNSS rover, such as in stop-and-go surveying. Computer- implemented methods and apparatus provide for determining a static position of an antenna of a GNSS rover from observations of GNSS signals collected at the antenna over multiple epochs and from correction data for at least one of the epochs. In some forms this comprises: acquiring first-epoch rover observations of GNSS signals received at the antenna during a first epoch, obtaining first-epoch correction data for the first epoch, determining a synchronized rover antenna position for the first epoch from the first-epoch rover observations and the first-epoch correction data, acquiring subsequent- epoch rover observations from the received GNSS satellite signals for at least one subsequent epoch for which correction data is unavailable, determining that the antenna position remained static for at least two static epochs, and determining an updated rover antenna position from the synchronized rover antenna position and the subsequent-epoch rover observations of at least one static epoch of the at least one subsequent epoch.
Abstract translation: 提出了用于在确定GNSS漫游器的天线的静态位置时提高生产率的方法和设备，例如在停下来的测量中。 计算机实现的方法和装置提供根据在多个历元上在天线处收集的GNSS信号的观测结果和从至少一个历元的校正数据来确定GNSS漫游器的天线的静态位置。 在一些形式中，这包括：获取在第一历元期间在天线处接收到的GNSS信号的第一历元漫游器观测结果，获得第一历元的第一历元校正数据，从第一历元确定第一历元的同步漫游器天线位置 漫游器观测值和第一历元校正数据，针对至少一个后续历元获取来自所接收的GNSS卫星信号的后续历元漫游器观测，其中校正数据不可用;确定天线位置对于至少两个静态历元保持静态;以及 从同步的漫游器天线位置和至少一个后续历元的至少一个静态历元的后续历元漫游器观测确定更新的漫游器天线位置。
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公开(公告)号：WO2007032947A9
公开(公告)日：2008-02-21
申请号：PCT/US2006034433
申请日：2006-09-05
Applicant: TRIMBLE NAVIGATION LTD , KOLB PETER E
Inventor： KOLB PETER E
Abstract: Methods and apparatus which characterize the ionospheric error across a network of GNSS reference stations are presented. The method relies on dual-frequency phase measurements in a geometry-free linear combination. The data are filtered for ambiguities and the characteristic parameters of the ionosphere. In combination with filter results from other combinations of phase measurements (ionosphere free combination), the physically- based model provides rapid and reliable ambiguity resolution.
Abstract translation: 提出了通过GNSS参考站网络对电离层误差进行表征的方法和装置。 该方法依赖于无几线性线性组合的双频相位测量。 对数据进行滤波，以及电离层的特征参数。 结合相位测量（电离层自由组合）的其他组合的滤波器结果，基于物理的模型提供了快速可靠的模糊度分辨率。
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公开(公告)号：WO2007024892A2
公开(公告)日：2007-03-01
申请号：PCT/US2006/032835
申请日：2006-08-22
Applicant: R.A. SMITH & ASSOCIATES, INC. , JONES, Robert S.
Inventor： JONES, Robert S.
IPC: G01V3/38
CPC classification number: G06T17/05 , G01C15/00 , G01S19/04 , G06T3/0006 , G06T19/20 , G06T2219/2016
Abstract: A method of coordinating surveys of different origins and which may be projected into different coordinate systems. The method provides a translation and rotation of the surveys to be coordinated without disturbing the internal geometry of each survey. A geographic information system including a procedure for coordinating surveys of different origins and/or which surveys which projected in different coordinate systems.
Abstract translation: 协调不同起源的调查方法，并可能将其投影到不同的坐标系中。 该方法提供了协调的调查和轮换，而不会影响每个调查的内部几何。 一个地理信息系统，包括协调不同来源的调查程序和/或在不同坐标系中预测哪些调查。
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公开(公告)号：WO2004046748A2
公开(公告)日：2004-06-03
申请号：PCT/US2003/036504
申请日：2003-11-14
Applicant: LOCKHEED MARTIN CORPORATION , NIELSEN, Ray, R. , PHILLIPS, Stephen, P. , KIRCHOFER, Richard
Inventor： NIELSEN, Ray, R. , PHILLIPS, Stephen, P. , KIRCHOFER, Richard
IPC: G01S
Abstract: Abstract of the DisclosureA location of a target is generated by, at each of a plurality of reference sensors, receiving signals from a plurality of positioning system satellites. A set of error measurements are generated by generating, for each of the reference sensors, one or more error measurements based on a reference location of the reference sensor and information derived from the signals received at the reference sensors from the plurality of position system satellites. Single differenced velocity corrections are also generated. At a central processing node, a meta-correction surface is generated from the set of error measurements. The meta-correction surface is then transmitted to a non-reference sensor. At the non-reference sensor, signals are received from a plurality of the positioning system satellites. The meta-correction surface and the signals received from the plurality of position system satellites are used to generate the location of the target.
Abstract translation: 公开摘要目标的位置由多个参考传感器中的每一个生成，来自多个定位系统卫星的接收信号。 通过针对每个参考传感器生成基于参考传感器的参考位置的一个或多个误差测量以及从在多个位置系统卫星处的参考传感器处接收的信号导出的信息来生成一组误差测量。 也产生单差分速度校正。 在中央处理节点，从该组误差测量产生元校正表面。 然后将元校正表面传送到非参考传感器。 在非参考传感器处，从多个定位系统卫星接收信号。 元校正表面和从多个位置系统卫星接收的信号用于产生目标的位置。
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公开(公告)号：WO01022111A1
公开(公告)日：2001-03-29
申请号：PCT/GB2000/003633
申请日：2000-09-21
Abstract: A global navigation satellite system has at least one reference receiver station (R) having a fixed geographical location, a user's receiver station (U) having position coordinates that are to be determined and a constellation of global navigation satellites (S) of which at least a plurality are always within view of the receiver sations (R, U). The user's receiver station (U) comprises means (10) for measuring code-phase data and carrier-phase data derived from the satellites (S), means (12) for receiving code-phase data and carrier-phase data from the reference receiver station (R), means (11) for deriving from the received and measured data first double-differenced carrier-phase measurements, a respective plurality of integer ambiguity estimates for each said first double-differenced carrier-phase measurement and second double-differenced carrier-phase measurements corresponding to said first double-differenced carrier-phase measurements, a first processor (14, 15) for processing said plurality of double-differenced integer ambiguity estimates to derive a single integer ambiguity value for each said first, and the corresponding second double-differenced carrier-phase measurement, and a second processor (16) for using said second double-differenced carrier-phase measurements and said integer ambiguity values to evaluate an estimate of said position coordinates P1 .
Abstract translation: 全球导航卫星系统具有至少一个具有固定地理位置的参考接收机站（R），具有待确定位置坐标的用户接收站（U）和至少一个全球导航卫星（S）的星座， 多个总是在接收器侧（R，U）的视野内。 用户接收站（U）包括用于测量从卫星（S）导出的码相数据和载波相位数据的装置（10），用于从参考接收机接收码相数据和载波相位数据的装置（12） 站（R），用于从接收和测量的数据中导出第一双差分载波相位测量的装置（11），对于每个所述第一双差分载波相位测量和第二双差分载波的相应多个整数模糊度估计 对应于所述第一双差分载波相位测量的相位测量;第一处理器（14,15），用于处理所述多个双差分整数模糊度估计，以导出每个所述第一和第二双差分载波相位测量的单个整数模糊度值， 双差分载波相位测量，以及用于使用所述第二双差分载波相位测量和所述整数模糊度值的第二处理器（16）来评估e 所述位置坐标P1
的极限。
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