公开(公告)号：WO2007084530A3

公开(公告)日：2007-07-26

申请号：PCT/US2007/001187

申请日：2007-01-17

Applicant: GLOBAL LOCATE, INC. ,  ABRAHAM, Charles ,  VAN DIGGELEN, Frank ,  RIBEN, Matthew

Inventor： ABRAHAM, Charles ,  VAN DIGGELEN, Frank ,  RIBEN, Matthew

IPC: G01C21/26 ,  G01C21/00

Abstract: A method and apparatus for generating and distributing satellite tracking data to a remote receiver is disclosed. The method includes extracting from satellite- tracking data initial model parameters representing a current orbit of at least one sateHite-positioning-system satellite, computing an orbit model using the initial model parameters, wherein a duration of the orbit model is longer than a duration of the satellite-tracking data, comparing, for an overlapping period of time, the orbit model to the satellite-tracking data; and adjusting the orbit model to match the satellite tracking data for the overlapping period of time so as to form an adjusted orbit model. The adjusted orbit model comprises the long-term-satellite-tracking data.

公开(公告)号：WO2005109028A1

公开(公告)日：2005-11-17

申请号：PCT/US2005/015384

申请日：2005-05-04

Applicant: GLOBAL LOCATE, INC. ,  ABRAHAM, Charles ,  FUCHS, Donald, L.

Inventor： ABRAHAM, Charles ,  FUCHS, Donald, L.

IPC: G01S1/04

CPC classification number: H04B1/70757 ,  G01S5/0036 ,  G01S5/0205 ,  G01S19/05 ,  G01S19/235 ,  G01S19/252 ,  G01S19/256 ,  G01S19/258 ,  G01S19/30 ,  G01S19/37 ,  G01S2205/002 ,  G06F17/15 ,  H04B1/70752 ,  H04B1/70754 ,  H04B1/7077 ,  H04B2201/70715

Abstract: Method and apparatus for processing a satellite positioning system (SPS) signal is described. In one example, a timing reference related to a SPS time of day is obtained from a wireless communication signal received by a mobile receiver. A bias in a local clock of the mobile receiver with respect to a frame timing of a repeating code broadcast by the satellite is compensated for in response to the timing reference. An expected code delay window is obtained for the SPS signal at the mobile receiver. The SPS signal is correlated with a reference code within the expected code delay window. In another example, an expected code delay window is obtained at the mobile receiver. The mobile receiver selects a sampling resolution in response to a size of the expected code delay window. The SPS signal is sampled at the selected sampling resolution and then correlated with a reference code.

Abstract translation: 描述了用于处理卫星定位系统（SPS）信号的方法和装置。 在一个示例中，从由移动接收机接收的无线通信信号获得与一天的SPS时间相关的定时参考。 响应于定时参考，补偿移动接收机的本地时钟相对于由卫星广播的重复码的帧定时的偏移。 在移动接收机处获得SPS信号的预期代码延迟窗口。 SPS信号与期望代码延迟窗口内的参考码相关。 在另一示例中，在移动接收机处获得期望的代码延迟窗口。 移动接收机响应于期望的代码延迟窗口的大小来选择采样分辨率。 SPS信号以选定的采样分辨率采样，然后与参考码相关。

公开(公告)号：WO2005040845A1

公开(公告)日：2005-05-06

申请号：PCT/US2004/034954

申请日：2004-10-21

Applicant: GLOBAL LOCATE, INC. ,  ABRAHAM, Charles ,  TAPUCU, Emre

Inventor： ABRAHAM, Charles ,  TAPUCU, Emre

IPC: G01S1/00

CPC classification number: G01S19/30 ,  G01S19/235 ,  G01S19/24 ,  G01S19/29 ,  G01S19/37 ,  G06F17/15 ,  H04B1/707 ,  H04B1/70752 ,  H04B1/7077 ,  H04B2201/70715

Abstract: A method and apparatus for estimating a satellite signal parameter in a satellite positioning system receiver is described. In an example, a plurality of correlation results between a satellite signal and a reference signal is generated in response to a command from a processor. At least one satellite signal parameter is estimated from the plurality of correlation results using a co-processor integrated within the satellite positioning system receiver. The at least one satellite signal parameter is then provided to the processor.

Abstract translation: 描述了一种用于估计卫星定位系统接收机中的卫星信号参数的方法和装置。 在一个示例中，响应于来自处理器的命令，产生卫星信号和参考信号之间的多个相关结果。 使用集成在卫星定位系统接收机内的协处理器，从多个相关结果估计至少一个卫星信号参数。 然后将至少一个卫星信号参数提供给处理器。

公开(公告)号：WO2004015444A1

公开(公告)日：2004-02-19

申请号：PCT/US2003/024611

申请日：2003-08-06

Applicant: GLOBAL LOCATE, INC.

Inventor： ABRAHAM, Charles ,  FUCHS, Donald, L.

IPC: G01S5/14

CPC classification number: G06F17/15 ,  G01S1/045 ,  G01S5/0205 ,  G01S19/22 ,  G01S19/235 ,  G01S19/254 ,  G01S19/256 ,  G01S19/30 ,  G01S19/37 ,  H04B1/70752 ,  H04B1/70757 ,  H04B1/7077 ,  H04B1/709 ,  H04B1/7095 ,  H04B2201/70715

Abstract: A method and apparatus for mitigating multipath interference in a digital signal correlator forms values representative of magnitude or power of a correlation response between a digital signal and a pseudorandom reference code. The earliest peak in the correlation response is then selected as the correct peak to compute a time delay.

Abstract translation: 用于减轻数字信号相关器中的多径干扰的方法和装置形成表示数字信号和伪随机参考码之间的相关响应的幅度或功率的值。 然后将相关响应中的最早峰选为正确的峰值以计算时间延迟。

公开(公告)号：WO2003010912A2

公开(公告)日：2003-02-06

申请号：PCT/US2002/023282

申请日：2002-07-22

Applicant: GLOBAL LOCATE, INC

Inventor： VAN DIGGELEN, Frank ,  ABRAHAM, Charles ,  LAMANCE, James, W.

IPC: H04L

CPC classification number: G01S19/27 ,  G01S19/05 ,  G01S19/258

Abstract: A method and apparatus for creating and distributing satellite tracking data in a compact format to a remote receiver. At least a portion of the satellite tracking data is extracted from memory and is formatted into a compact format. The compact formatted data is transmitted to the remote receiver via a distribution network. Once this data is received at the remote receiver it is reformatted into a format prescribed by the remote receiver.

Abstract translation: 用于创建紧凑格式的卫星跟踪数据并将其分发给远程接收器的方法和设备。 至少有一部分卫星跟踪数据是从存储器中提取的，并被格式化为一种紧凑的格式。 紧凑格式化的数据通过分配网络传输到远程接收器。 一旦在远程接收器处接收到该数据，它将被重新格式化为远程接收器规定的格式。

公开(公告)号：WO2006086468A1

公开(公告)日：2006-08-17

申请号：PCT/US2006/004422

申请日：2006-02-09

Applicant: GLOBAL LOCATE, INC. ,  VAN DIGGELEN, Frank ,  PODSHIVALOV, Sergei ,  ABRAHAM, Charles

Inventor： VAN DIGGELEN, Frank ,  PODSHIVALOV, Sergei ,  ABRAHAM, Charles

IPC: G01S1/00

CPC classification number: G01S19/05 ,  G01S19/06 ,  G01S19/252 ,  G01S19/254 ,  G01S19/256 ,  G01S19/258 ,  G01S19/27 ,  G01S19/42

Abstract: Method and apparatus for locating position of a remote receiver is described. In one example, long term satellite tracking data is obtained at a remote receiver. Satellite positioning system (SPS) satellites are detected. Pseudoranges are determined from the remote receiver to the detected SPS satellites. Position of the remote receiver is computed using the pseudoranges and the long term satellite tracking data. SPS satellites may be detected using at least one of acquisition assistance data computed using a previously computed position and a blind search. Use of long term satellite tracking data obviates the need for the remote receiver to decode ephemeris from the satellites. In addition, position of the remote receiver is computed without obtaining an initial position estimate from a server or network.

Abstract translation: 描述了用于定位远程接收机的位置的方法和装置。 在一个示例中，在远程接收器处获得长期卫星跟踪数据。 卫星定位系统（SPS）卫星被检测到。 从远程接收机到检测到的SPS卫星确定伪距。 使用伪距和长期卫星跟踪数据计算远程接收机的位置。 可以使用使用先前计算的位置和盲搜索计算的获取辅助数据中的至少一个来检测SPS卫星。 使用长期卫星跟踪数据避免了远程接收机从卫星解码星历的需要。 此外，在不从服务器或网络获得初始位置估计的情况下，计算远程接收机的位置。

公开(公告)号：WO2005078471A2

公开(公告)日：2005-08-25

申请号：PCT/US2005/003724

申请日：2005-02-04

Applicant: GLOBAL LOCATE, INC. ,  ABRAHAM, Charles ,  TAPUCU, Emre

Inventor： ABRAHAM, Charles ,  TAPUCU, Emre

IPC: G01S

CPC classification number: G01S19/24 ,  G01S19/29

Abstract: A method and apparatus for processing satellite positioning system signals at a mobile receiver is described. In one example, first bit-transitions within satellite navigation data transmitted by at least one satellite are estimated at the mobile receiver. A bit pattern is generated that includes a known preamble and an extended preamble. The extended preamble includes expected data bits within the satellite navigation data. The first bit-transitions are compared with second bit-transitions of the bit pattern to generate match data.

Abstract translation: 描述了一种在移动接收机处理卫星定位系统信号的方法和装置。 在一个示例中，在移动接收机处估计由至少一个卫星发送的卫星导航数据内的第一位转换。 生成包括已知前导码和扩展前导码的位模式。 扩展前导码包括卫星导航数据内的期望数据位。 将第一位转换与位模式的第二位转换进行比较以生成匹配数据。

公开(公告)号：WO2005054893A2

公开(公告)日：2005-06-16

申请号：PCT/US2004/019952

申请日：2004-06-10

Applicant: GLOBAL LOCATE, INC. ,  VAN DIGGELEN, Frank ,  ABRAHAM, Charles

Inventor： VAN DIGGELEN, Frank ,  ABRAHAM, Charles

IPC: G01S5/14

CPC classification number: G01S19/01 ,  G01S5/0018 ,  G01S5/0036 ,  G01S19/09 ,  G01S19/11 ,  G01S19/235 ,  G01S19/258 ,  G01S19/27 ,  G01S19/42 ,  G01S2205/008

Abstract: Method and apparatus for locating position of a satellite signal receiver is described. In one example, pseudoranges are obtained that estimate the range of a satellite signal receiver to a plurality of satellites. An absolute time and a position are computed using the pseudoranges at a first time. The absolute time is then used to compute another position at a subsequent time. In another example, a plurality of states associated with a satellite signal receiver are estimated, where the plurality of states includes a time tag error state. A dynamic model is then formed relating the plurality of states, the dynamic model operative to compute position of the satellite signal receiver.

Abstract translation: 描述了用于定位卫星信号接收机的位置的方法和装置。 在一个示例中，获得估计卫星信号接收机到多个卫星的范围的伪距离。 绝对时间和位置是在第一次使用伪距计算的。 然后，绝对时间用于在随后的时间计算另一个位置。 在另一示例中，估计与卫星信号接收机相关联的多个状态，其中多个状态包括时间标签错误状态。 然后形成关于多个状态的动态模型，动态模型可操作以计算卫星信号接收机的位置。

公开(公告)号：WO2004086077A1

公开(公告)日：2004-10-07

申请号：PCT/US2004/007320

申请日：2004-03-11

Applicant: GLOBAL LOCATE INC. ,  ABRAHAM, Charles ,  DE LA PORTE, Serge ,  PODSHIVALOV, Sergi

Inventor： ABRAHAM, Charles ,  DE LA PORTE, Serge ,  PODSHIVALOV, Sergi

IPC: G01S1/00

CPC classification number: G01S19/30 ,  G01S1/045 ,  G01S5/0205 ,  G01S19/22 ,  G01S19/235 ,  G01S19/254 ,  G01S19/256 ,  G01S19/29 ,  G01S19/37 ,  G06F17/15 ,  H04B1/70752 ,  H04B1/7077 ,  H04B1/709 ,  H04B2201/70715

Abstract: A method and apparatus for performing signal correlation is described. In one example, portions of a pseudorandom reference code are multiplied with portions of a repeating code of the digital signal to produce a plurality of inner products. The plurality of inner products are then integrated over a period less than a period of the repeating code to produce a correlation result with a broadened frequency response. In another example, the digital signal is correlated with a pseudorandom reference code to produce a first correlation. The digital signal is then correlated with the pseudorandom code reference code to produce a second correlation. The first and second correlations are then used to determine first and second signal delays. The frequency shift of the digital signal is computed using a difference between the first and second signal delays over time.

Abstract translation: 描述用于执行信号相关的方法和装置。 在一个示例中，伪随机参考码的部分与数字信号的重复码的部分相乘以产生多个内积。 然后在小于重复代码的周期的​​时间段内积分多个内积以产生具有扩大的频率响应的相关结果。 在另一示例中，数字信号与伪随机参考码相关以产生第一相关。 然后将数字信号与伪随机码参考码相关以产生第二相关。 然后使用第一和第二相关来确定第一和第二信号延迟。 使用第一和第二信号延迟随时间的差异来计算数字信号的频移。

公开(公告)号：WO2003028240A1

公开(公告)日：2003-04-03

申请号：PCT/US2002/030333

申请日：2002-09-25

Applicant: GLOBAL LOCATE, INC.

Inventor： ABRAHAM, Charles ,  DIGGELEN, Frank, van

IPC: H04B1/707

CPC classification number: G01S19/29 ,  G01S19/23 ,  G01S19/30 ,  G01S19/37 ,  G06F17/15 ,  H04B1/707 ,  H04B1/70752 ,  H04B1/7077 ,  H04B2201/70715

Abstract: A method and apparatus for computing a convolution (109) between an input GPS signal and a reference code by generating the convolution result in real time without storing unprocessed signal samples. The apparatus comprises a vector multiplier (402a, 402b) running at high speed to achieve the same result as a vector multiplier sized to process an entire epoch. Additionally, historical correlation data (113) is used to correct frequency and timing errors.

Abstract translation: 一种用于通过在不存储未处理的信号样本的情况下实时产生卷积结果来计算输入GPS信号和参考码之间的卷积（109）的方法和装置。 该装置包括以高速运行的矢量乘法器（402a，402b），以获得与尺寸适于处理整个时期的矢量乘法器相同的结果。 另外，使用历史相关数据（113）来校正频率和定时误差。