公开(公告)号：US08400358B2

公开(公告)日：2013-03-19

申请号：US12424320

申请日：2009-04-15

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： G01S3/02

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.

公开(公告)号：US08331953B2

公开(公告)日：2012-12-11

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： H04W24/00

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：US08254966B2

公开(公告)日：2012-08-28

申请号：US12026352

申请日：2008-02-05

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： H04W24/00

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

摘要： A system and method to re-calibrate an area of a wireless communications network that has been exposed to one or more network configuration changes is disclosed. When one or more attributes of the wireless network undergo a change which impairs the geo-location capability to locate a mobile station, it can be detrimental to the safety and well being of the network users. Geo-location calculations rely on accurate and updated calibration data to correctly locate a mobile station. In some instances, it may be necessary to update the calibration data for areas of the network that have been exposed to network configuration changes. Modifying previously collected calibration data to account for changes that have occurred in the network may increase the accuracy of mobile station location estimation.

摘要翻译： 公开了一种重新校准已经暴露于一个或多个网络配置变化的无线通信网络的区域的系统和方法。 当无线网络的一个或多个属性经历改变以损害定位移动站的地理位置能力时，可能对网络用户的安全性和安全性是不利的。 地理位置计算依靠准确和更新的校准数据来正确定位移动台。 在某些情况下，可能需要更新已经暴露于网络配置更改的网络区域的校准数据。 修改先前收集的校准数据以解决网络中发生的变化可能会增加移动台位置估计的准确性。

公开(公告)号：US08175620B2

公开(公告)日：2012-05-08

申请号：US12068213

申请日：2008-02-04

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： 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. Received signal level measurements reported by a mobile device for which a location estimate is to be determined may be compared with the data 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。 可以将要确定位置估计的移动设备报告的接收信号电平测量值与与各个网格点相关联的数据进行比较，以估计移动设备的位置。

公开(公告)号：US08090384B2

公开(公告)日：2012-01-03

申请号：US12023841

申请日：2008-01-31

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： 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. Regions may be defined as a function of any number of parameters and respective predetermined ranges thereof in the NMRs. An intersection of these defined regions may be determined and the location of a mobile device may be estimated as a function of the intersection.

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。 区域可以被定义为NMR中任何数量的参数及其各自的预定范围的函数。 可以确定这些定义的区域的交集，并且可以将移动设备的位置估计为交点的函数。

公开(公告)号：US20080107155A1

公开(公告)日：2008-05-08

申请号：US11972855

申请日：2008-01-11

申请人： Joseph Kennedy ,  Thomas Gravely ,  John Carlson ,  Martin Alles ,  Doug Blackburn

发明人： Joseph Kennedy ,  Thomas Gravely ,  John Carlson ,  Martin Alles ,  Doug Blackburn

IPC分类号： H04B1/713 ,  H04B17/00

CPC分类号： H04B1/713 ,  H04B17/0085 ,  H04B17/21 ,  H04B17/27

摘要： A method for calibrating an antenna and signal processing system enabling angle of arrival (AOA) determination for a frequency hopping signal, in which a calibration coefficient is determined in response to one or more calibration signals injected into the system at one or more of the frequencies in the hopping sequence and proximate in time to reception of the communication signal. The calibration coefficients are reflective of a frequency and time dependent parameter of a path between the antenna and wireless location sensor. The AOA is determined as a function of the calibration coefficient and the radio frequency energy of the received communication signal. Several embodiments of the method are illustrated.

摘要翻译： 一种用于校准天线和信号处理系统的方法，所述天线和信号处理系统使能到达跳频信号的到达角（AOA）确定，其中校准系数是响应于以一个或多个频率注入到系统中的一个或多个校准信号而确定的 在跳频序列中并且在时间上接近通信信号。 校准系数反映了天线和无线位置传感器之间路径的频率和时间相关参数。 AOA被确定为接收到的通信信号的校准系数和射频能量的函数。 示出了该方法的几个实施例。

公开(公告)号：US20120302252A1

公开(公告)日：2012-11-29

申请号：US13302754

申请日：2011-11-22

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： H04W24/10

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. Regions may be defined as a function of any number of parameters and respective predetermined ranges thereof in the NMRs. An intersection of these defined regions may be determined and the location of a mobile device may be estimated as a function of the intersection.

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。 区域可以被定义为NMR中任何数量的参数及其各自的预定范围的函数。 可以确定这些定义的区域的交集，并且可以将移动设备的位置估计为交点的函数。

公开(公告)号：US08311018B2

公开(公告)日：2012-11-13

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： H04J3/00

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. 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。 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：US20090201207A1

公开(公告)日：2009-08-13

申请号：US12424320

申请日：2009-04-15

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： G01S3/02

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：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。