-
公开(公告)号：US20080284643A1
公开(公告)日：2008-11-20
申请号：US11804328
申请日：2007-05-16
IPC分类号： G01S5/14
CPC分类号： G01C21/005 , G01S19/43
摘要： A method of generating post-mission position and orientation data comprises generating position and orientation data representing positions and orientations of a mobile platform, based on global navigation satellite system (GNSS) data and inertial navigation system (INS) data acquired during a data acquisition period by the mobile platform, using a network real-time kinematic (RTK) subsystem to generate correction data associated with the data acquisition period, and correcting the position and orientation data based on the correction data. The RTK subsystem may implement a virtual reference station (VRS) technique to generate the correction data.
摘要翻译： 一种产生任务后位置和方向数据的方法包括基于在数据采集周期期间获取的全球导航卫星系统（GNSS）数据和惯性导航系统（INS）数据，生成表示移动平台的位置和方向的位置和方向数据 通过移动平台，使用网络实时运动学（RTK）子系统来生成与数据采集周期相关联的校正数据，并且基于校正数据来校正位置和取向数据。 RTK子系统可以实现虚拟参考站（VRS）技术来生成校正数据。
-
公开(公告)号：US08232917B2
公开(公告)日：2012-07-31
申请号：US12690287
申请日：2010-01-20
CPC分类号： G01C21/005 , G01S19/43
摘要： A method of generating post-mission position and orientation data comprises generating position and orientation data representing positions and orientations of a mobile platform, based on global navigation satellite system (GNSS) data and inertial navigation system (INS) data acquired during a data acquisition period by the mobile platform, using a network real-time kinematic (RTK) subsystem to generate correction data associated with the data acquisition period, and correcting the position and orientation data based on the correction data. The RTK subsystem may implement a virtual reference station (VRS) technique to generate the correction data.
摘要翻译： 一种产生任务后位置和方向数据的方法包括基于在数据采集周期期间获取的全球导航卫星系统（GNSS）数据和惯性导航系统（INS）数据，生成表示移动平台的位置和方向的位置和方向数据 通过移动平台，使用网络实时运动学（RTK）子系统来生成与数据采集周期相关联的校正数据，并且基于校正数据来校正位置和取向数据。 RTK子系统可以实现虚拟参考站（VRS）技术来生成校正数据。
-
公开(公告)号：US07855678B2
公开(公告)日：2010-12-21
申请号：US11804328
申请日：2007-05-16
CPC分类号： G01C21/005 , G01S19/43
摘要： A method of generating post-mission position and orientation data comprises generating position and orientation data representing positions and orientations of a mobile platform, based on global navigation satellite system (GNSS) data and inertial navigation system (INS) data acquired during a data acquisition period by the mobile platform, using a network real-time kinematic (RTK) subsystem to generate correction data associated with the data acquisition period, and correcting the position and orientation data based on the correction data. The RTK subsystem may implement a virtual reference station (VRS) technique to generate the correction data.
摘要翻译： 一种产生任务后位置和方向数据的方法包括基于在数据采集周期期间获取的全球导航卫星系统（GNSS）数据和惯性导航系统（INS）数据，生成表示移动平台的位置和方向的位置和方向数据 通过移动平台，使用网络实时运动学（RTK）子系统来生成与数据采集周期相关联的校正数据，并且基于校正数据来校正位置和取向数据。 RTK子系统可以实现虚拟参考站（VRS）技术来生成校正数据。
-
公开(公告)号：US20100169001A1
公开(公告)日：2010-07-01
申请号：US12690287
申请日：2010-01-20
CPC分类号： G01C21/005 , G01S19/43
摘要： A method of generating post-mission position and orientation data comprises generating position and orientation data representing positions and orientations of a mobile platform, based on global navigation satellite system (GNSS) data and inertial navigation system (INS) data acquired during a data acquisition period by the mobile platform, using a network real-time kinematic (RTK) subsystem to generate correction data associated with the data acquisition period, and correcting the position and orientation data based on the correction data. The RTK subsystem may implement a virtual reference station (VRS) technique to generate the correction data.
摘要翻译： 一种产生任务后位置和方向数据的方法包括基于在数据采集周期期间获取的全球导航卫星系统（GNSS）数据和惯性导航系统（INS）数据，生成表示移动平台的位置和方向的位置和方向数据 通过移动平台，使用网络实时运动学（RTK）子系统来生成与数据采集周期相关联的校正数据，并且基于校正数据来校正位置和取向数据。 RTK子系统可以实现虚拟参考站（VRS）技术来生成校正数据。
-
公开(公告)号：US20090093959A1
公开(公告)日：2009-04-09
申请号：US11867639
申请日：2007-10-04
CPC分类号： G01C21/165 , G01S19/44
摘要： A real-time high accuracy position and orientation system (RT-HAPOS) system for a vehicle, such as an aircraft, comprises a global navigation satellite system (GNSS) receiver disposed on the vehicle and an integrated inertial navigation (IIN) module disposed on the vehicle. The GNSS receiver generates GNSS position data indicating approximate positions of the vehicle during a data acquisition period in which the vehicle is moving. The IIN module executes a real-time kinematic (RTK) algorithm during the data acquisition period to generate output position data indicating positions of the vehicle at a greater precision than the GNSS position data, based on the GNSS position data, inertial measurement data acquired on the vehicle during the data acquisition period, and a set of virtual reference station (VRS) observables received during the data acquisition period from a remote source external to the vehicle, where the VRS observables are based on the GNSS position data.
摘要翻译： 用于诸如飞机的车辆的实时高精度位置和定向系统（RT-HAPOS）系统包括设置在车辆上的全球导航卫星系统（GNSS）接收机和设置在车辆上的综合惯性导航（IIN）模块 机动车。 GNSS接收器在车辆正在移动的数据采集周期期间产生指示车辆的近似位置的GNSS位置数据。 IIN模块在数据采集周期期间执行实时运动学（RTK）算法，以基于GNSS位置数据，在GNSS位置数据上获取的惯性测量数据，生成比GNSS位置数据更精确的指示车辆位置的输出位置数据 数据采集周期内的车辆，以及在数据采集周期期间从车辆外部的远程源接收的一组虚拟参考站（VRS）观测值，其中VRS可观测值基于GNSS位置数据。
-
公开(公告)号：US09733359B2
公开(公告)日：2017-08-15
申请号：US13522384
申请日：2011-02-14
申请人： Xiaoming Chen , Ulrich Vollath , Kendall Ferguson
发明人： Xiaoming Chen , Ulrich Vollath , Kendall Ferguson
IPC分类号： G01S19/04 , G01S19/07 , G01S19/32 , G01S19/44 , G01S19/40 , G01S19/41 , G01S19/43 , G01S19/02 , G01S1/00 , G01S5/14
CPC分类号： G01S19/04 , G01S1/00 , G01S5/14 , G01S19/02 , G01S19/07 , G01S19/32 , G01S19/40 , G01S19/41 , G01S19/43 , G01S19/44
摘要： Methods and apparatus for processing of GNSS data derived from multi-frequency code and carrier observations are presented which make available correction data for use by a rover located within the region, the correction data comprising: the ionospheric delay over the region, the tropospheric delay over the region, the phase-leveled geometric correction per satellite, and the at least one code bias per satellite. In some embodiments the correction data includes an ionospheric phase bias per satellite. Methods and apparatus for determining a precise position of a rover located within a region are presented in which a GNSS receiver is operated to obtain multi-frequency code and carrier observations and correction data, to create rover corrections from the correction data, and to determine a precise rover position using the rover observations and the rover corrections. The correction data comprises at least one code bias per satellite, a fixed-nature MW bias per satellite and/or values from which a fixed-nature MW bias per satellite is derivable, and an ionospheric delay per satellite for each of multiple regional network stations and/or non-ionospheric corrections. Methods and apparatus for encoding and decoding the correction messages containing correction data are also presented, in which network messages include network elements related to substantially all stations of the network and cluster messages include cluster elements related to subsets of the network.
-
7.发明授权公开(公告)号：US08830121B2
公开(公告)日：2014-09-09
申请号：US13059463
申请日：2009-08-05
申请人： Ulrich Vollath
发明人： Ulrich Vollath
IPC分类号： G01S19/44
CPC分类号： G01S19/44
摘要： Methods and apparatus are provided for estimating parameters, i.e. ambiguities, derived from GNSS signals. Observations of a GNSS signal from each of a plurality of GNSS satellites are obtained (4120). The observations are fed to a filter having a state vector at least comprising a float ambiguity for each received frequency of the GNSS signals, each float ambiguity constituting a real number estimate associated with an integer number of wavelengths of the GNSS signal between a receiver of the GNSS signal and the GNSS satellite from which it is received, and the filter being for estimating a float value for each float ambiguity of the state vector (4140). A subset of float ambiguities of the state vector is selected (4150). Integer values are assigned to the estimated float values of the float ambiguities of the subset to define a plurality of integer ambiguity candidate sets (4160). A quality measure is determined for each of the candidate sets. A weighted average of the candidate sets is formed (4200). Ambiguities of the weighted average can be used in subsequent operations to aid in determining a position of the receiver or can be used to prepare data, e.g., in a network processor that can be used to augment position information of a rover.
摘要翻译： 提供了用于估计从GNSS信号导出的参数，即模糊度的方法和装置。 获得来自多个GNSS卫星中的每一个的GNSS信号的观察（4120）。 将观测值馈送到具有对于GNSS信号的每个接收频率至少包括浮点模糊度的状态向量的滤波器，每个浮点模糊度构成与在GNSS信号的接收机之间的GNSS信号的整数个波长相关联的实数估计 GNSS信号和从其接收的GNSS卫星，并且所述滤波器用于估计所述状态向量（4140）的每个浮点模糊度的浮点值。 选择状态向量的浮点模糊度的子集（4150）。 将整数值分配给子集的浮点模糊度的估计浮点值，以定义多个整数模糊度候选集（4160）。 确定每个候选组的质量度量。 形成候选集的加权平均值（4200）。 可以在随后的操作中使用加权平均值的不确定性来帮助确定接收机的位置，或者可以用于准备数据，例如在网络处理器中，该网络处理器可用于增加流动站的位置信息。
-
8.发明授权公开(公告)号：US08704709B2
公开(公告)日：2014-04-22
申请号：US13059428
申请日：2009-08-05
IPC分类号： G01S19/44
CPC分类号： G01S19/44
摘要： Methods and apparatus are provided for estimating parameters, i.e. ambiguities, derived from GNSS signals. Observations of each of received frequencies of a GNSS signal from a plurality of GNSS satellites are obtained for a plurality of instances in time (3120). The time sequence of observations is fed to a filter to estimate a state vector comprising float ambiguities, wherein each float ambiguity constitutes a non integer estimate of an integer number of wavelengths for a received frequency of a GNSS signal between a receiver of the GNSS signal and the GNSS satellite from which it is received and wherein the float ambiguities of the state vector are updated over time on the basis of the observations (3140). The occurrence of an interruption in tracking of at least one signal of a satellite is determined (3121). The float ambiguity of the state vector for the at least one signal for which an interruption in tracking occurred is maintained at the value before the interruption in tracking occurred (3122). Integer values are assigned to at least a subgroup of the estimated float values to define a plurality of integer ambiguity candidate sets (3160). A quality measure is determined for each of the candidate sets. A weighted average of the candidate sets is formed (3200). Ambiguities of the weighted average can be used in subsequent operations to aid in determining a position of the receiver or can be used to prepare data, e.g., in a network processor that can be used to augment position information of a rover.
摘要翻译： 提供了用于估计从GNSS信号导出的参数，即模糊度的方法和装置。 在多个时间（3120）中获得来自多个GNSS卫星的GNSS信号的每个接收频率的观察。 将观测的时间序列馈送到滤波器以估计包括浮点模糊度的状态向量，其中每个浮点模糊度构成GNSS信号的接收机与GNSS信号的接收频率的接收频率的整数个波长的非整数估计，以及 接收GNSS卫星并且其中根据观测值（3140）随时间更新状态向量的浮点模糊度。 确定跟踪卫星的至少一个信号的中断的发生（3121）。 跟踪发生中断的至少一个信号的状态向量的浮点模糊度维持在跟踪发生中断之前的值（3122）。 将整数值分配给估计浮点值的至少一个子组以定义多个整数模糊度候选集（3160）。 确定每个候选组的质量度量。 形成候选集的加权平均值（3200）。 可以在随后的操作中使用加权平均值的不确定性来帮助确定接收机的位置，或者可以用于准备数据，例如在网络处理器中，该网络处理器可用于增加流动站的位置信息。
-
公开(公告)号：US08395542B2
公开(公告)日：2013-03-12
申请号：US12807125
申请日：2010-08-27
申请人： Bruno Scherzinger , Ulrich Vollath
发明人： Bruno Scherzinger , Ulrich Vollath
摘要： Control systems and methods that provide a high degree of vertical measurement accuracy for a body in motion are disclosed. The systems employ an inertial sensor system for vertical measurement and a Global Navigation Satellite System that includes multipath reduction or attenuation to provide corrected vertical information for a moving body to the inertial sensor system. The combination of these systems enables the maintenance of an accurate vertical position for said body.
摘要翻译： 公开了为运动中的身体提供高度的垂直测量精度的控制系统和方法。 该系统采用用于垂直测量的惯性传感器系统和包括多径减小或衰减的全球导航卫星系统，以向移动体提供用于惯性传感器系统的校正垂直信息。 这些系统的组合使得能够维持所述身体的精确垂直位置。
-
公开(公告)号：US20120306694A1
公开(公告)日：2012-12-06
申请号：US13522384
申请日：2011-02-14
申请人： Xiaoming Chen , Ulrich Vollath , Kendall Ferguson
发明人： Xiaoming Chen , Ulrich Vollath , Kendall Ferguson
IPC分类号： G01S19/07
CPC分类号： G01S19/04 , G01S1/00 , G01S5/14 , G01S19/02 , G01S19/07 , G01S19/32 , G01S19/40 , G01S19/41 , G01S19/43 , G01S19/44
摘要： Methods and apparatus for processing of GNSS data derived from multi-frequency code and carrier observations are presented which make available correction data for use by a rover located within the region, the correction data comprising: the ionospheric delay over the region, the tropospheric delay over the region, the phase-leveled geometric correction per satellite, and the at least one code bias per satellite. In some embodiments the correction data includes an ionospheric phase bias per satellite. Methods and apparatus for determining a precise position of a rover located within a region are presented in which a GNSS receiver is operated to obtain multi-frequency code and carrier observations and correction data, to create rover corrections from the correction data, and to determine a precise rover position using the rover observations and the rover corrections. The correction data comprises at least one code bias per satellite, a fixed-nature MW bias per satellite and/or values from which a fixed-nature MW bias per satellite is derivable, and an ionospheric delay per satellite for each of multiple regional network stations and/or non-ionospheric corrections. Methods and apparatus for encoding and decoding the correction messages containing correction data are also presented, in which network messages include network elements related to substantially all stations of the network and cluster messages include cluster elements related to subsets of the network.
摘要翻译： 提出了用于处理从多频码和载波观测得到的GNSS数据的方法和装置，其使可用的校正数据由位于该区域内的流动站使用，校正数据包括：该区域的电离层延迟，对流层延迟 该区域，每个卫星的相位级几何校正以及每个卫星的至少一个码偏置。 在一些实施例中，校正数据包括每个卫星的电离层相位偏置。 介绍了一种用于确定位于一个区域内的流动站的精确位置的方法和装置，其中操作GNSS接收器以获得多频码和载波观测和校正数据，以从校正数据中产生流动站校正，并确定 使用流动站观测和流动站校正确定流动站的位置。 校正数据包括每个卫星至少一个代码偏置，每个卫星的固定自然MW偏差和/或每个卫星可衍生固定自然MW偏差的值，以及每个卫星对每个多个区域网络站的电离层延迟 和/或非电离层校正。 还提出了用于对包含校正数据的校正消息进行编码和解码的方法和装置，其中网络消息包括与网络的基本上所有站相关的网络元件，并且集群消息包括与网络的子集有关的集群元素。
-
-
-
-
-
-
-
-
-
搜索结果
83 条记录 (耗时 0.036 秒)
