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    • 1. 发明申请
    • DISTRIBUTED ORBIT MODELING AND PROPAGATION METHOD FOR A PREDICTED AND REAL-TIME ASSISTED GPS SYSTEM
    • 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
    • US20080018527A1
    • 2008-01-24
    • US11740206
    • 2007-04-25
    • James LaManceMaria EagenGuylain Roy-MacHabee
    • James LaManceMaria EagenGuylain Roy-MacHabee
    • H04B7/185
    • G01S19/27G01C21/20G01S19/05G01S19/258H04W4/02
    • 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.
    • 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。
    • 4. 发明授权
    • Distributed orbit modeling and propagation method for a predicted and real-time assisted GPS system
    • 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
    • US07612712B2
    • 2009-11-03
    • US11740206
    • 2007-04-25
    • James W LaManceMaria EagenGuylain Roy-MacHabee
    • James W LaManceMaria EagenGuylain Roy-MacHabee
    • H04B7/185
    • G01S19/27G01C21/20G01S19/05G01S19/258H04W4/02
    • 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.
    • 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。
    • 5. 发明授权
    • Distributed orbit modeling and propagation method for a predicted and real-time assisted GPS system
    • 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
    • US08004462B2
    • 2011-08-23
    • US12536348
    • 2009-08-05
    • James W. LaManceMaria EagenGuylian Roy-MacHabee
    • James W. LaManceMaria EagenGuylian Roy-MacHabee
    • G01S19/27G01S19/25
    • G01S19/27G01C21/20G01S19/05G01S19/258H04W4/02
    • 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.
    • 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。
    • 6. 发明申请
    • DISTRIBUTED ORBIT MODELING AND PROPAGATION METHOD FOR A PREDICTED AND REAL-TIME ASSISTED GPS SYSTEM
    • 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
    • US20100090896A1
    • 2010-04-15
    • US12536348
    • 2009-08-05
    • James W. LaManceMaria EagenGuylian Roy-MacHabee
    • James W. LaManceMaria EagenGuylian Roy-MacHabee
    • G01S19/27G01S19/25
    • G01S19/27G01C21/20G01S19/05G01S19/258H04W4/02
    • 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.
    • 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。