公开(公告)号：US20080189321A1

公开(公告)日：2008-08-07

申请号：US12026372

申请日：2008-02-05

申请人： Martin Alles ,  John Carlson ,  George Maher ,  Selcuk Mazlum

发明人： Martin Alles ,  John Carlson ,  George Maher ,  Selcuk Mazlum

IPC分类号： G06F17/30 ,  G01S1/00

CPC分类号： G01S5/021 ,  G01S5/0252 ,  G01S5/0257 ,  H04W4/02

摘要： A system and method modifies calibration data used to geo-locate a mobile station. Calibration data measured via a calibration data collection device may contain errors due to the physical limitations of the collection device and/or the collection process. Any data collection device may produce some degree of signal degradation or drop-out. Dead reckoning provides a remedy for signal drop-out, however, it often produces data results that may be unsatisfactory to perform an accurate location estimate. To ensure the integrity of the collected calibration data, a data modification and/or data replacement algorithm may be implemented to enhance the accuracy of the collected data. In addition, current collection procedures used to generate a calibration database may be laborious, time-consuming and expensive. Simplifying the test and measurement equipment needed, and the procedures for obtaining calibration data may save time and expenses.

摘要翻译： 系统和方法修改用于对移动台进行地理定位的校准数据。 通过校准数据收集装置测量的校准数据可能由于收集装置的物理限制和/或收集过程而包含错误。 任何数据采集设备可能会产生一定程度的信号劣化或丢失。 航位推算为信号丢失提供了补救措施，但是，它经常产生可能不能令人满意地执行准确位置估计的数据结果。 为了确保收集的校准数据的完整性，可以实施数据修改和/或数据替换算法以增强收集的数据的准确性。 此外，用于生成校准数据库的当前收集程序可能是费力，耗时且昂贵的。 简化所需的测试和测量设备，以及获取校准数据的程序可节省时间和费用。

公开(公告)号：US20080188245A1

公开(公告)日：2008-08-07

申请号：US12026364

申请日：2008-02-05

申请人： Martin Alles ,  John Carlson ,  George Maher ,  Selcuk Mazlum

发明人： Martin Alles ,  John Carlson ,  George Maher ,  Selcuk Mazlum

IPC分类号： H04Q7/20

CPC分类号： G01S5/021 ,  G01S5/0252 ,  G01S5/0257 ,  H04W4/02

摘要： A system and method of determining calibration data at non-calibrated location points is disclosed. A mobile station may be geo-located at most locations, if not all locations, within communication range of one or more serving and/or neighboring base stations of a mobile network. Calibration data may be collected and stored in memory via a data collection procedure. Known calibration data for locations proximate to the mobile station may be necessary when attempting to geo-locate the mobile station. A geographical region may be calibrated via a standard calibration data collection procedure, however, various obstacles, such as, buildings, mountains, ponds etc. may inevitably create deficiencies in the calibration data for one or more areas of the region. Certain techniques may be applied to estimate the calibration data of areas that have not been properly calibrated.

摘要翻译： 公开了一种在非校准位置点确定校准数据的系统和方法。 移动站可以在移动网络的一个或多个服务和/或相邻基站的通信范围内的大多数位置（如果不是全部的位置）处于地理位置。 可以通过数据采集程序收集校准数据并将其存储在存储器中。 当尝试对移动站进行地理定位时，可能需要用于邻近移动站的位置的已知校准数据。 可以通过标准校准数据收集程序来校准地理区域，然而，诸如建筑物，山脉，池塘等各种障碍物可能不可避免地在该区域的一个或多个区域的校准数据中产生缺陷。 可以应用某些技术来估计未正确校准的区域的校准数据。

公开(公告)号：US20050175038A1

公开(公告)日：2005-08-11

申请号：US11033165

申请日：2005-01-12

申请人： John Carlson ,  Martin Alles ,  George Maher

发明人： John Carlson ,  Martin Alles ,  George Maher

IPC分类号： H04J3/06

CPC分类号： G01S5/14 ,  H04B7/2693 ,  H04W64/00

摘要： The disclosure generally relates to techniques for time acquisition, synchronization and location estimation when the GPS signal condition deteriorate or when the signal is unavailable. In one embodiment, the disclosure relates to a processor for detecting clock error of a wireless location sensor (WLS) in a communication network having several wireless sensors, the processor programmed with instructions for determining clock error of an asynchronous WLS. The instructions include identifying a first WLS having asynchronous clock and a second WLS having synchronous clock; directing each of the first and the second WLS to detect a broadcast transmitted from a transmission station of known location and report an actual time of arrival at each of the first and the second WLS; computing an expected time of arrival of the broadcast at the first WLS as a function of the distance between the first WLS and the second WLS; and determining a clock error at the first WLS as a function of the expected time of arrival and the actual time of arrival of the broadcast at the first WLS.

摘要翻译： 本公开通常涉及当GPS信号状况恶化或信号不可用时的时间获取，同步和位置估计的技术。 在一个实施例中，本公开涉及一种用于在具有几个无线传感器的通信网络中检测无线位置传感器（WLS）的时钟误差的处理器，该处理器用用于确定异步WLS的时钟误差的指令来编程。 所述指令包括识别具有异步时钟的第一WLS和具有同步时钟的第二WLS; 指示第一和第二WLS中的每一个以检测从已知位置的发送站发送的广播，并且报告第一和第二WLS中的每一个的实际到达时间; 作为第一WLS和第二WLS之间的距离的函数来计算广播在第一WLS处的预期到达时间; 以及根据预期的到达时间和在第一WLS处的广播的实际到达时间的函数来确定在第一WLS处的时钟误差。

公开(公告)号：US08374784B2

公开(公告)日：2013-02-12

申请号：US13197126

申请日：2011-08-03

申请人： Selcuk Mazlum ,  John Carlson ,  Martin Alles ,  George Maher

发明人： Selcuk Mazlum ,  John Carlson ,  Martin Alles ,  George Maher

IPC分类号： G01C21/00

CPC分类号： G01S19/50

摘要： A method and apparatus for estimating a location of a device. For each of a plurality of locations of a device, a set of positional data is determined from signals received from a plurality of satellites. The positional data is filtered and compared with data from a road network database. This comparison may be a function of a distance from at least one point defined by a set of the filtered positional data to a road in the road network database and an angle between a line representing a best fit for plural points defined by corresponding plural sets of the filtered positional data to a line defined by a road in the road network database.

摘要翻译： 一种用于估计设备的位置的方法和装置。 对于装置的多个位置中的每一个，根据从多个卫星接收的信号来确定一组位置数据。 对位置数据进行过滤，并与道路网数据库的数据进行比较。 该比较可以是距离由一组经过滤的位置数据至道路网数据库中的道路所定义的至少一个点的距离的函数，以及表示对应于多个组 将过滤的位置数据提供给由道路网数据库中的道路定义的线。

公开(公告)号：US08280384B2

公开(公告)日：2012-10-02

申请号：US12019575

申请日：2008-01-24

申请人： John Carlson ,  Martin Alles ,  George Maher ,  Selcuk Mazlum

发明人： John Carlson ,  Martin Alles ,  George Maher ,  Selcuk Mazlum

IPC分类号： H04W40/00

CPC分类号： G01S5/021 ,  G01S5/0252 ,  G01S5/0257 ,  H04W4/02

摘要： The location of a wireless mobile device may be estimated using, at least in part, one or more pre-existing Network Measurement Reports (“NMRs”) which include calibration data for a number of locations within a geographic region. The calibration data for these locations is gathered and analyzed so that particular calibration points within the geographic region can be determined and associated with a particular set or sets of calibration data from, for example, one or more NMRs. Sets of calibration points may be evaluated as a function of parameters of the calibration data, and a set of calibration points may be selected as a function of a predetermined criteria. Signal reception in the region may be estimated as a function of mobile device location in the region and an approximate statistical accuracy of a signal strength pattern determined as a function of the estimated signal reception. An expected accuracy of a location system may then be modeled in the region as a function of system configuration information and determined approximate statistical accuracy.

摘要翻译： 可以使用至少部分地，一个或多个预先存在的网络测量报告（NMR）来估计无线移动设备的位置，所述网络测量报告（NMR）包括地理区域内的多个位置的校准数据。 收集和分析这些位置的校准数据，使得可以确定地理区域内的特定校准点并且与例如一个或多个NMR的特定的校准数据集合相关联。 可以将校准点的集合评估为校准数据的参数的函数，并且可以根据预定标准来选择一组校准点。 该区域中的信号接收可以被估计为该区域中的移动设备位置的函数，以及根据估计的信号接收确定的信号强度模式的近似统计精度。 然后可以根据系统配置信息和确定的近似统计准确度，在该区域中对位置系统的期望精度进行建模。

公开(公告)号：US20080274750A1

公开(公告)日：2008-11-06

申请号：US11743139

申请日：2007-05-01

申请人： John Carlson ,  Martin Alles

发明人： John Carlson ,  Martin Alles

IPC分类号： H04Q7/20

CPC分类号： H04W64/00 ,  G01S5/10 ,  G01S5/12

摘要： A system and method for estimating the location of a mobile station that receives signals from a plurality of base stations. The base station timing offsets may be estimated utilizing an observed time difference of arrival value at the mobile between a first signal received from a first base station and a second signal received from a second base station. An initial location for the mobile is randomly selected and an estimated location is determined using the selected initial location, the observed time difference of arrival value, and an iterative search algorithm. The estimated location may be stored if the estimated location is within a predetermined area. In addition, for each such estimated location, the applicable base station time offsets that relate to this location may be updated to generate a current best estimate. A calculated location for the mobile may be determined from stored estimated locations and the current base station time offset estimates.

摘要翻译： 一种用于估计从多个基站接收信号的移动台的位置的系统和方法。 可以使用在从第一基站接收的第一信号和从第二基站接收到的第二信号之间的观察到的移动台处的到达时间差值来估计基站定时偏移。 随机选择移动台的初始位置，并使用所选择的初始位置，观察到的到达时间差值和迭代搜索算法来确定估计位置。 如果估计位置在预定区域内，则可以存储估计位置。 此外，对于每个这样的估计位置，可以更新与该位置相关的适用的基站时间偏移量以产生当前的最佳估计。 可以从存储的估计位置和当前基站时间偏移估计来确定移动站的计算位置。

公开(公告)号：US20080188242A1

公开(公告)日：2008-08-07

申请号：US12014018

申请日：2008-01-14

申请人： John Carlson ,  Martin Alles ,  George Maher ,  Selcuk Mazlum

发明人： John Carlson ,  Martin Alles ,  George Maher ,  Selcuk Mazlum

IPC分类号： H04Q7/22

CPC分类号： G01S5/021 ,  G01S5/0252 ,  G01S5/0257 ,  H04W4/02

摘要： The location of a wireless mobile device may be estimated using, at least in part, one or more pre-existing Network Measurement Reports (“NMRs”) which include calibration data for a number of locations within a geographic region. The calibration data for these locations is gathered and analyzed so that particular grid points within the geographic region can be determined and associated with a particular set or sets of calibration data from, for example, one or more NMRs. Embodiments of the present subject matter also provide a method of improving a location estimate of a mobile device. Received signal level measurements reported by a mobile device for which a location estimate is to be determined may be evaluated and/or compared with the characteristics associated with the various grid points to estimate the location of the mobile device.

摘要翻译： 可以至少部分地使用包括地理区域内的多个位置的校准数据的一个或多个预先存在的网络测量报告（“NMR”）来估计无线移动设备的位置。 收集和分析这些位置的校准数据，使得可以确定地理区域内的特定网格点并且与例如一个或多个NMR的特定的校准数据集合相关联。 本主题的实施例还提供了一种改进移动设备的位置估计的方法。 可以对要由其确定位置估计的移动装置报告的接收信号电平测量结果可与各种网格点相关联的特性进行评估和/或比较，以估计移动装置的位置。

公开(公告)号：US20080186234A1

公开(公告)日：2008-08-07

申请号：US12026333

申请日：2008-02-05

申请人： Martin Alles ,  John Carlson ,  George Maher ,  Selcuk Mazlum

发明人： Martin Alles ,  John Carlson ,  George Maher ,  Selcuk Mazlum

IPC分类号： G01S1/00

CPC分类号： G01S5/021 ,  G01S5/0252 ,  G01S5/0257 ,  H04W4/02

摘要： A method of modifying calibration data used to geo-locate a mobile station located in an indoor environment is disclosed. When a mobile station is located indoors, the signal strength of signals received and/or transmitted by the mobile station have the tendency to be lower than the strength of the signals received by a mobile station located outdoors. As a result of these lower signal strengths, geo-location efforts which rely on signal strengths may result in unsatisfactory location accuracy. Modifying pre-existing calibration data obtained outdoors may provide a way to simulate indoor calibration data characteristics.

摘要翻译： 公开了一种修改用于对位于室内环境中的移动台进行地理定位的校准数据的方法。 当移动台位于室内时，由移动台接收和/或发送的信号的信号强度倾向于低于由位于室外的移动台接收到的信号的强度。 由于这些较低的信号强度，依靠信号强度的地理定位工作可能导致不能令人满意的定位精度。 修改户外获得的现有校准数据可以提供一种模拟室内校准数据特性的方法。

公开(公告)号：US20060154607A1

公开(公告)日：2006-07-13

申请号：US10531039

申请日：2003-10-16

申请人： Joseph Kenney ,  John Carlson ,  Martin Alles

发明人： Joseph Kenney ,  John Carlson ,  Martin Alles

IPC分类号： H04B17/00 ,  H04B1/02

CPC分类号： H04W64/00 ,  G01S5/021 ,  G01S5/0268 ,  H04B1/1081 ,  H04B7/0848 ,  H04B7/0854 ,  H04B7/086 ,  H04B7/0891 ,  H04B17/318 ,  H04L25/0206 ,  H04W24/00

摘要： A method is described that enables a system to estimate the individual times of arrival of multi-path signals components in a received signal while blind to the particular angular response characteristics of an antenna array. Additionally, a system is described that estimate the impulse response of the modulation channel. The impulse response is used to generate impulse response estimates for all multi-path signal components without reference to the actual angle of arrival of the signal. The impulse response for the multi-path constituents are directly associated with the time delays on each path, providing delay estimates for each path.

摘要翻译： 描述了一种使得系统能够在对天线阵列的特定角度响应特性无效的情况下估计接收信号中的多路径信号分量的各个到达时间的方法。 另外，描述了估计调制信道的脉冲响应的系统。 脉冲响应用于产生所有多径信号分量的脉冲响应估计，而不参考信号的实际到达角。 多路径成分的脉冲响应与每个路径上的时间延迟直接相关，为每个路径提供延迟估计。

公开(公告)号：US08406753B2

公开(公告)日：2013-03-26

申请号：US12026480

申请日：2008-02-05

申请人： Martin Alles ,  John Carlson ,  George Maher ,  Selcuk Mazlum

发明人： Martin Alles ,  John Carlson ,  George Maher ,  Selcuk Mazlum

IPC分类号： H04W4/00 ,  H04W24/00

CPC分类号： G01S5/021 ,  G01S5/0252 ,  G01S5/0257 ,  H04W4/02

摘要： The location of a wireless mobile device may be estimated using, at least in part, one or more pre-existing Network Measurement Reports (“NMRs”) which include calibration data for a number of locations within a geographic region. The calibration data for these locations is gathered and analyzed so that particular grid points within the geographic region can be determined and associated with a particular set or sets of calibration data from, for example, one or more NMRs. Sets of grid points may be evaluated as a function of parameters of the calibration data, and a set of grid points may be selected as a function of a predetermined criteria. The location of a mobile device in the geographic region may then be determined as a function of the predetermined criteria.

摘要翻译： 可以使用至少部分地，一个或多个预先存在的网络测量报告（NMR）来估计无线移动设备的位置，所述网络测量报告（NMR）包括地理区域内的多个位置的校准数据。 收集和分析这些位置的校准数据，使得可以确定地理区域内的特定网格点并且与例如一个或多个NMR的特定的校准数据集合相关联。 可以将网格点的集合评估为校准数据的参数的函数，并且可以根据预定标准来选择一组网格点。 然后可以根据预定标准来确定移动设备在地理区域中的位置。