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1. 发明申请

US20070058591A1 System and method for the mitigation of cdma cross-corrlation artifacts and the improvement of signal-to-noise ratios in tdma location networks 有权
标题翻译：用于减轻cdma交叉伪影的系统和方法以及tdma位置网络中信噪比的改善
公开(公告)号：US20070058591A1
公开(公告)日：2007-03-15
申请号：US10565874
申请日：2004-08-03
申请人： James Lamance , David Small
发明人： James Lamance , David Small
IPC分类号： H04B7/216 , H04B7/212
CPC分类号： H04J13/00 , G01S5/14 , H04B2001/70706
摘要： A correlation system for Time Division Multiple Access (TDMA) positioning systems is disclosed, whereby a position receiver acquires, tracks, and demodulates a plurality of Code Division Multiple Access (CDMA) modulated positioning signals are pulsed in a Time Division Multiple Access (TDMA) scheme. A specialized correlation processor within the position receiver is configured to internally generate pseudo-random number (PRN) code signal replicas of Code Division Multiple Access (CDMA) positioning signals in synchronicity with their respectively received Time Division Multiple Access (TDMA) positioning signals. This correlation system provides the position receiver with range measurements free from the deleterious effects of Code Division Multiple Access (CDMA) cross-correlation artifacts and degraded signal-to-noise ratios, therefore allowing the computation of high accuracy position solutions.
摘要翻译：公开了一种用于时分多址（TDMA）定位系统的相关系统，其中位置接收机获取，跟踪和解调多个码分多址（CDMA）调制定位信号在时分多址（TDMA）方案。位置接收器内的专用相关处理器被配置为与其分别接收的时分多址（TDMA）定位信号同步地内部地生成码分多址（CDMA）定位信号的伪随机数（PRN）码信号复制品。该相关系统为位置接收机提供了距离码分多址（CDMA）互相关伪影和劣化信噪比的有害影响的距离测量，从而允许计算高精度位置解。

2. 发明授权

US08009098B2 Staccato pulse edge correlation 有权
标题翻译：狭窄脉冲边缘相关
公开(公告)号：US08009098B2
公开(公告)日：2011-08-30
申请号：US11547694
申请日：2005-04-07
申请人： James Lamance
发明人： James Lamance
IPC分类号： G01S3/16
CPC分类号： H04B1/7085 , G01S19/22 , H04B1/7117
摘要： The present invention discloses a system and method for mitigating multipath in DSSS CDMA radio navigation signals by a) transmitting a rapid pulsing pattern from a transmitting device to a position receiver that samples the transmitted signal, b) separating the received samples and storing sample-based correlation accumulation values into independent bins that are synchronous with the received pulsing pattern, c) applying a logical decision process to determine the accumulation bin associated with the leading edges of the received pulses, and d) generating a range estimate from the correlation accumulation bin associated with the leading edges of the received pulses.
摘要翻译：本发明公开了一种减轻DSSS CDMA无线电导航信号中的多路径的系统和方法，该系统和方法包括以下步骤：a）将快速脉冲模式从发送设备发送到对发射信号进行采样的位置接收机; b）分离接收到的采样并存储基于采样相关累积值转换成与所接收的脉冲模式同步的独立仓，c）应用逻辑判定过程来确定与接收到的脉冲的前沿相关联的累加仓，以及d）从相关累积仓相关联产生范围估计接收脉冲的前沿。

3. 发明授权

US07466264B2 System and method for providing assistance data within a location network 有权
标题翻译：用于在位置网络内提供辅助数据的系统和方法
公开(公告)号：US07466264B2
公开(公告)日：2008-12-16
申请号：US10565873
申请日：2004-08-04
申请人： James Lamance , David Small
发明人： James Lamance , David Small
IPC分类号： G01S1/00
CPC分类号： G01S19/11 , G01S19/05 , G01S19/235 , G01S19/44
摘要： A system and method for providing assistance to a position receiver in a location network consisting of a Global Navigation Satellite System (GNSS) and a synchronized network of positioning-unit devices is disclosed. A positioning-unit device observes the time and frequency of received Global Navigation Satellite System (GNSS) signals relative to the synchronized network of positioning-unit devices. These time and frequency observations are modulated, as assistance data, onto the positioning signals that are broadcast by the positioning-unit devices. A position receiver demodulates the assistance data and analyzes the positioning signals. The position receiver then searches for Global Navigation Satellite System (GNSS) signals in a range responsive to the assistance data and the analysis of the received positioning signals.
摘要翻译：公开了一种用于向由全球导航卫星系统（GNSS）和定位单元设备的同步网络组成的位置网络中的位置接收机提供帮助的系统和方法。定位单元设备观察到相对于定位单元设备的同步网络接收到的全球导航卫星系统（GNSS）信号的时间和频率。将这些时间和频率观测作为辅助数据调制到由定位单元设备广播的定位信号上。位置接收机解调辅助数据并分析定位信号。然后，位置接收器在响应于辅助数据和接收到的定位信号分析的范围内搜索全球导航卫星系统（GNSS）信号。

4. 发明授权

US07463617B2 Mitigation of CDMA cross-correlation artifacts and improvement in signal-to-noise ratio in TDMA location networks 有权
标题翻译： CDMA互相关伪影的减轻和TDMA定位网络中信噪比的提高
公开(公告)号：US07463617B2
公开(公告)日：2008-12-09
申请号：US10565874
申请日：2004-08-03
申请人： James Lamance , David Small
发明人： James Lamance , David Small
IPC分类号： H04B7/212 , H04B7/216 , H04B1/00 , H04J3/06
CPC分类号： H04J13/00 , G01S5/14 , H04B2001/70706
摘要： A correlation system for Time Division Multiple Access (TDMA) positioning systems is disclosed, whereby a position receiver acquires, tracks, and demodulates a plurality of Code Division Multiple Access (CDMA) modulated positioning signals are pulsed in a Time Division Multiple Access (TDMA) scheme. A specialized correlation processor within the position receiver is configured to internally generate pseudo-random number (PRN) code signal replicas of Code Division Multiple Access (CDMA) positioning signals in synchronicity with their respectively received Time Division Multiple Access (TDMA) positioning signals. This correlation system provides the position receiver with range measurements free from the deleterious effects of Code Division Multiple Access (CDMA) cross-correlation artifacts and degraded signal-to-noise ratios, therefore allowing the computation of high accuracy position solutions.
摘要翻译：公开了一种用于时分多址（TDMA）定位系统的相关系统，其中位置接收机获取，跟踪和解调多个码分多址（CDMA）调制定位信号在时分多址（TDMA）方案。位置接收器内的专用相关处理器被配置为与其分别接收的时分多址（TDMA）定位信号同步地内部地生成码分多址（CDMA）定位信号的伪随机数（PRN）码信号复制品。该相关系统为位置接收机提供了距离码分多址（CDMA）互相关伪影和劣化信噪比的有害影响的距离测量，从而允许计算高精度位置解。

5. 发明申请

US20080129591A1 System and Method for Providing Assistance Data Within a Location Network 有权
标题翻译：在位置网络中提供辅助数据的系统和方法
公开(公告)号：US20080129591A1
公开(公告)日：2008-06-05
申请号：US10565873
申请日：2004-08-04
申请人： James Lamance , David Small
发明人： James Lamance , David Small
IPC分类号： G01S5/14 , H04B7/185
CPC分类号： G01S19/11 , G01S19/05 , G01S19/235 , G01S19/44
摘要： A system and method for providing assistance to a position receiver in a location network consisting of a Global Navigation Satellite System (GNSS) and a synchronized network of positioning-unit devices is disclosed. A positioning-unit device observes the time and frequency of received Global Navigation Satellite System (GNSS) signals relative to the synchronized network of positioning-unit devices. These time and frequency observations are modulated, as assistance data, onto the positioning signals that are broadcast by the positioning-unit devices. A position receiver demodulates the assistance data and analyzes the positioning signals. The position receiver then searches for Global Navigation Satellite System (GNSS) signals in a range responsive to the assistance data and the analysis of the received positioning signals.
摘要翻译：公开了一种用于向由全球导航卫星系统（GNSS）和定位单元设备的同步网络组成的位置网络中的位置接收机提供帮助的系统和方法。定位单元设备观察到相对于定位单元设备的同步网络接收到的全球导航卫星系统（GNSS）信号的时间和频率。将这些时间和频率观测作为辅助数据调制到由定位单元设备广播的定位信号上。位置接收机解调辅助数据并分析定位信号。然后，位置接收器在响应于辅助数据和接收到的定位信号分析的范围内搜索全球导航卫星系统（GNSS）信号。

6. 发明申请

US20130021201A1 Assisted Global Navigation Satellite System (AGNSS) with Precise Ionosphere Model Assistance 审中-公开
标题翻译：辅助全球导航卫星系统（AGNSS）具有精确的电离层模型协助
公开(公告)号：US20130021201A1
公开(公告)日：2013-01-24
申请号：US13246480
申请日：2011-09-27
申请人： Manuel del CASTILLO , David Albert Lundgren , James LaMance
发明人： Manuel del CASTILLO , David Albert Lundgren , James LaMance
IPC分类号： G01S19/21 , G01S19/25
CPC分类号： G01S19/07
摘要： Embodiments enable higher accuracy GNSS performance by generating local/regional ionosphere models tailored to specific local/regional areas of interest and by using location-based delivery of the local/regional ionosphere models to mobile GPS receivers. Different types and levels of reference locations (e.g., Cell ID (CID), Location Area Code (LAC), Radio Network Controller ID (RNC-ID), Mobile Country Code (MCC)) can be used to estimate the location of mobile GPS receivers and to deliver the appropriate local/regional ionosphere models to the mobile GPS receivers. According to embodiments, the local/regional ionosphere models are fit into the same 8-parameter set as the broadcast global ionosphere model, therefore being compatible with existing GPS receivers that accept the broadcast global ionosphere model.
摘要翻译：实施例通过产生针对特定的本地/区域感兴趣的地区/区域电离层模型，以及通过使用本地/区域电离层模型到移动GPS接收机的位置传送来实现更高精度的GNSS性能。可以使用不同类型和级别的参考位置（例如，小区ID（CID），位置区域代码（LAC），无线电网络控制器ID（RNC-ID），移动国家代码（MCC））来估计移动GPS 接收器，并将适当的本地/区域电离层模型提供给移动GPS接收机。根据实施例，局部/区域电离层模型适合与广播全球电离层模型相同的8参数集合，因此与接受广播全球电离层模型的现有GPS接收机兼容。

7. 发明申请

US20110163917A1 METHOD AND SYSTEM FOR ANTENNA ORIENTATION COMPENSATION FOR POWER RANGING 审中-公开
标题翻译：用于电力范围的天线方向补偿的方法和系统
公开(公告)号：US20110163917A1
公开(公告)日：2011-07-07
申请号：US12652157
申请日：2010-01-05
申请人： David Lundgren , James LaMance
发明人： David Lundgren , James LaMance
IPC分类号： G01S3/02
CPC分类号： G01S11/06 , G01S5/021
摘要： A mobile device comprising an antenna may be operable to adjust a plurality of received signal strength indications (RSSIs) for a plurality of known RF nodes based on an orientation of the antenna and an antenna gain profile (AGP) of the antenna. The mobile device may be operable to calculate a position of the mobile device utilizing a power ranging based on the adjusted plurality of RSSIs. The mobile device may generate an antenna orientation report (AOR) utilizing a magnetometer and an accelerometer in the mobile device and determine the orientation of the antenna based on the AOR. The mobile device may be operable to determine an antenna gain value associated with each of the plurality of RSSIs for the plurality of known RF nodes based on the orientation of the antenna and the AGP of the antenna.
摘要翻译：包括天线的移动设备可以用于基于天线的取向和天线的天线增益分布（AGP）来调整多个已知RF节点的多个接收信号强度指示（RSSI）。移动设备可以可操作以使用基于经调整的多个RSSI的功率测距来计算移动设备的位置。移动设备可以使用移动设备中的磁力计和加速度计生成天线方向报告（AOR），并且基于AOR确定天线的方位。移动设备可以用于基于天线的方向和天线的AGP来确定与多个已知RF节点的多个RSSI中的每一个相关联的天线增益值。

8. 发明申请

US20090088180A1 COMPUTING GEOGRAPHICAL LOCATION OF A MOBILE RECEIVER USING NETWORK MEASUREMENT REPORTS 审中-公开
标题翻译：使用网络测量报告计算移动接收机的地理位置
公开(公告)号：US20090088180A1
公开(公告)日：2009-04-02
申请号：US11865414
申请日：2007-10-01
申请人： James LaMance , David Albert Lundgren
发明人： James LaMance , David Albert Lundgren
IPC分类号： H04Q7/34
CPC分类号： G01S5/14 , G01S11/06 , H04W64/00
摘要： A method and an apparatus for determining a location of a mobile receiver including the steps of measuring a plurality of signal strengths received by a mobile receiver, wherein the plurality of signal strengths are associated with a plurality of cellular stations, wherein the plurality of signal strengths is associated with a specific point in time, combining the plurality of signal strengths with a plurality of signal path modeling parameters to create a propagation path loss model of the path between the plurality of cellular stations and the mobile receiver, applying a non-linear estimation algorithm to the propagation path loss model, generating a plurality of distances, wherein each distance is associated with the mobile receiver and each of the plurality of cellular stations and computing the location of the mobile receiver by iterating the non-linear estimation algorithm and resulting mobile receiver position until converged.
摘要翻译：一种用于确定移动接收机的位置的方法和装置，包括以下步骤：测量由移动接收机接收的多个信号强度，其中所述多个信号强度与多个蜂窝站相关联，其中所述多个信号强度与特定时间点相关联，将多个信号强度与多个信号路径建模参数组合以创建多个蜂窝站和移动接收机之间的路径的传播路径损耗模型，应用非线性估计传播路径损耗模型的算法，产生多个距离，其中每个距离与移动接收机和多个蜂窝站中的每一个相关联，并且通过迭代非线性估计算法和所得到的移动台来计算移动接收机的位置接收器位置直到收敛。

9. 发明申请

US20080018527A1 DISTRIBUTED ORBIT MODELING AND PROPAGATION METHOD FOR A PREDICTED AND REAL-TIME ASSISTED GPS SYSTEM 有权
标题翻译：用于预测和实时辅助GPS系统的分布式轨道建模和传播方法
公开(公告)号：US20080018527A1
公开(公告)日：2008-01-24
申请号：US11740206
申请日：2007-04-25
申请人： James LaMance , Maria Eagen , Guylain Roy-MacHabee
发明人： James LaMance , Maria Eagen , Guylain Roy-MacHabee
IPC分类号： H04B7/185
CPC分类号： G01S19/27 , G01C21/20 , G01S19/05 , G01S19/258 , H04W4/02
摘要： A distributed orbit and propagation method for use in a predicted GPS or GNSS system, which includes a predicted GPS server (PGPS Server), a source of high accuracy orbit predictions (Orbit Server), a global reference network (GRN Server) providing real-time GPS or GNSS assistance data to the PGPS Server, a predicted GPS client (PGPS Client) running on a device equipped with a GPS or AGPS chipset. In response to requests from the PGPS Client, the PGPS Server produces and disseminates an initial seed dataset consisting of current satellite orbit state vectors and orbit propagation model coefficients. This seed dataset enables the PGPS Client to locally predict and propagate satellite orbits to a desired future time. This predictive assistance in turn helps accelerate Time To First Fix (TTFF), optimize position solution calculations and improve the sensitivity of the GPS chip present on, or coupled with, the device. In contrast with other conventional predicted GPS systems that forward large volumes of predicted orbits, synthetic ephemeris or synthetic almanac data, this method optimally reduces data transfer requirements to the client, and enables the client to locally synthesize its own predicted assistance data as needed. This method also supports seamless notification of real-time satellite integrity events and seamless integration of predicted assistance data with industry standard real-time assistance data.
摘要翻译：一种用于预测的GPS或GNSS系统的分布式轨道和传播方法，其包括预测的GPS服务器（PGPS服务器），高精度轨道预测源（轨道服务器），全球参考网络（GRN Server）时间GPS或GNSS辅助数据到PGPS服务器，在配备GPS或AGPS芯片组的设备上运行的预测GPS客户端（PGPS客户端）。响应PGPS客户端的请求，PGPS服务器生成并传播由当前卫星轨道状态向量和轨道传播模型系数组成的初始种子数据集。该种子数据集使PGPS客户端可以将卫星轨道本地预测和传播到期望的未来时间。这种预测性帮助反过来有助于加速首次修复（TTFF），优化位置解决方案计算，并提高存在于设备上或与设备相结合的GPS芯片的灵敏度。与传统大量预测轨道，合成星历或合成年历数据的其他常规预测GPS系统相比，该方法最大限度地减少了向客户端的数据传输要求，并且使得客户端能够根据需要在其中本地合成其预测的辅助数据。该方法还支持实时卫星完整性事件的无缝通知，并将预测的辅助数据与行业标准实时辅助数据无缝集成。

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