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    POSITIONING USING A REFERENCE STATION
    51.
    发明申请
    POSITIONING USING A REFERENCE STATION 有权
    使用参考站定位

    公开(公告)号：US20100090890A1

    公开(公告)日：2010-04-15

    申请号：US12451469

    申请日：2007-05-18

    申请人： Lauri Wirola ,  Jari Syrjärinne

    发明人： Lauri Wirola ,  Jari Syrjärinne

    IPC分类号： G01S19/44 ,  G01S19/29

    CPC分类号： G01S19/04 ,  G01S19/44

    摘要： For supporting a change of a reference station, first data that is valid for a first reference station is provided for transmission to a device, then data that is valid for the first reference station and data that is valid for a second reference station is provided for transmission to the device in parallel for a limited time, and finally data that is valid for the second reference station is provided for transmission to the device. The data for the first reference station and the data for the second reference station include measurements on satellite signals. At a receiving end, the respectively received data can be provided for a positioning of a device comprising a satellite signal receiver.

    摘要翻译： 为了支持参考站的更改，提供对第一参考站有效的第一数据用于传输到设备，然后提供对第一参考站有效的数据和对第二参考站有效的数据，用于 在有限的时间内并行发送到设备，最后提供对第二参考站有效的数据以传输到设备。 第一参考站的数据和第二参考站的数据包括对卫星信号的测量。 在接收端，分别接收的数据可以被提供用于包括卫星信号接收机的设备的定位。

    GPS reception method and GPS receiver
    52.
    发明申请
    GPS reception method and GPS receiver 有权
    GPS接收方式和GPS接收机

    公开(公告)号：US20050168382A1

    公开(公告)日：2005-08-04

    申请号：US11047851

    申请日：2005-01-31

    申请人： Hideki Awata

    发明人： Hideki Awata

    IPC分类号： G01S1/00 ,  G01S19/29 ,  G01S19/37 ,  G01S5/14

    CPC分类号： G01S19/29 ,  G01S19/37

    摘要： The present invention is intended to provide the synchronization acquisition of signals received from four GPS satellites in a short time and with stability by the time in which an intermediate frequency carrier error of good accuracy can be obtained at the time of power-on sequence, for example. Prerequisites are that at least one GPS satellite signal be in the synchronization hold state, its intermediate frequency carrier frequency be known, the orbit information about that GPS satellite be stored in a storage section, and the position and current time of the GPS receiver be known. Under these prerequisites, an intermediate frequency carrier error is computed from the intermediate frequency carrier frequency, the position and velocity of the GPS satellite obtained from the orbit information and the current time, and the position of the GPS receiver. The intermediate frequency carrier frequency is corrected by the computed intermediate frequency carrier error. The signals received from other GPS satellites are acquired by use of the corrected intermediate frequency carrier frequency.

    摘要翻译： 本发明旨在提供在短时间内从四个GPS卫星接收的信号的同步采集，并且在上电序列时可以获得具有良好精度的中频载波误差的时间的稳定性，为 例。 先决条件是，至少一个GPS卫星信号处于同步保持状态，其中频载波频率是已知的，关于该GPS卫星的轨道信息被存储在存储部分中，GPS接收机的位置和当前时间是已知的 。 在这些先决条件下，从中频载波频率，从轨道信息和当前时间获得的GPS卫星的位置和速度以及GPS接收机的位置计算出中频载波误差。 通过计算的中频载波误差来校正中频载波频率。 从其他GPS卫星接收到的信号通过使用校正的中频载波频率获得。

    Signal detector employing coherent integration
    53.
    发明授权
    Signal detector employing coherent integration 有权
    信号检测器采用相干整合

    公开(公告)号：US06917331B2

    公开(公告)日：2005-07-12

    申请号：US10423137

    申请日：2003-04-25

    申请人： Steven Gronemeyer

    发明人： Steven Gronemeyer

    IPC分类号： G01S1/00 ,  G01S19/23 ,  G01S19/24 ,  G01S19/25 ,  G01S19/29 ,  G01S19/30 ,  G01S19/35 ,  G01S19/37 ,  G01S3/16

    CPC分类号： G01S19/29 ,  G01S1/045 ,  G01S19/256 ,  G01S19/30

    摘要： A signal detector is provided in which complex samples of a received signal are multiplied by data representative of a hypothesis, and the resulting product data is coherently integrated over a desired duration to provide correlation data representative of the level of correlation between the hypothesis and the signal. In one embodiment, the signal detector is part of a GPS receiver.

    摘要翻译： 提供了一种信号检测器，其中接收信号的复样本乘以表示假设的数据，并且所得到的乘积数据在期望的持续时间内相干地积分，以提供表示假设和信号之间的相关性水平的相关数据 。 在一个实施例中，信号检测器是GPS接收器的一部分。

    Software GPS based integrated navigation
    54.
    发明申请
    Software GPS based integrated navigation 有权
    软件基于GPS的集成导航

    公开(公告)号：US20050110677A1

    公开(公告)日：2005-05-26

    申请号：US10720803

    申请日：2003-11-24

    申请人： Brian Schipper ,  Charles Bye

    发明人： Brian Schipper ,  Charles Bye

    IPC分类号： G01S19/29 ,  G01S1/00 ,  G01S5/14 ,  G01S19/30 ,  G05D1/00 ,  G05D1/08

    CPC分类号： G01S19/37 ,  G01S19/26 ,  G01S19/29 ,  G01S19/30

    摘要： A GPS receiver acquires GPS data from at least one GPS satellite. A code offset and a frequency offset are determined based on the acquired GPS data. A change in GPS position of the GPS receiver during the determination of the code offset is determined, and a change in rate of the GPS receiver during the determination of the frequency offset is also determined. The code offset is updated based on the change in GPS position, and the frequency offset is updated based on the change in rate. The updated code offset and the updated frequency offset are handed over to a tracking function.

    摘要翻译： GPS接收器从至少一个GPS卫星获取GPS数据。 基于获取的GPS数据确定码偏移和频率偏移。 在确定码偏移期间确定GPS接收机的GPS位置的变化，并且还确定在确定频偏期间GPS接收机的频率变化。 基于GPS位置的变化来更新码偏移，并且基于速率的变化来更新频率偏移。 更新的码偏移和更新的频率偏移被切换到跟踪功能。

    Signal receiver for integrating and combining integrations in alternating time segments for signal acquisition at low signal strength
    55.
    发明授权
    Signal receiver for integrating and combining integrations in alternating time segments for signal acquisition at low signal strength 有权
    信号接收器用于在低信号强度下对用于信号采集的交替时间段中的积分和组合进行积分和组合

    公开(公告)号：US06898234B1

    公开(公告)日：2005-05-24

    申请号：US09893179

    申请日：2001-06-27

    申请人： Yiming Yu ,  Peter Van Wyck Loomis

    发明人： Yiming Yu ,  Peter Van Wyck Loomis

    IPC分类号： G01S1/00 ,  G01S19/29 ,  G01S19/30 ,  H04B7/185 ,  H04B7/216

    CPC分类号： G01S19/30 ,  G01S19/246

    摘要： A GPS receiver for integrating a GPS signal separately in a series of “A” type and “B” type time segments, the “A” segments alternating with the “B” time segments; combining the squares of the magnitudes of “A” time segment integrations corresponding to code phases for forming “A” type combined magnitudes; combining the squares of the magnitudes of the “B” time segment integrations corresponding to code phases for forming “B” type combined magnitudes; and determining an acquisition code phase of the signal from the strongest of the “A” or “B” combined magnitudes. The “A” time segments and the “B” time segments are one-half the period of the data bits of the signal, thereby ensuring that either the “A” time segments or the “B” time segments avoid the nullifying effect of data bit inversions.

    摘要翻译： 一种用于将GPS信号分别集成在一系列“A”型和“B”型时间段中的GPS接收器，“A”段与“B”时间段交替; 组合对应于用于形成“A”型组合幅度的码相位的“A”时间段积分的幅度的平方; 组合对应于用于形成“B”型组合幅度的代码相位的“B”时间段积分的幅度的平方; 并且从“A”或“B”组合幅度中的最强者确定信号的获取代码相位。 “A”时间段和“B”时间段是信号的数据位的周期的一半，从而确保“A”时间段或“B”时间段避免数据的无效 有点倒数。

    Method and system for compensating satellite signals
    56.
    发明授权
    Method and system for compensating satellite signals 有权
    卫星信号补偿方法及系统

    公开(公告)号：US06888498B2

    公开(公告)日：2005-05-03

    申请号：US10668011

    申请日：2003-09-22

    申请人： Mats Brenner ,  Randy J. Reuter ,  Paul A. Kline

    发明人： Mats Brenner ,  Randy J. Reuter ,  Paul A. Kline

    IPC分类号： G01S1/00 ,  G01S5/14 ,  G01S19/05 ,  G01S19/11 ,  G01S19/21 ,  G01S19/29 ,  G01S19/46 ,  G01B5/02 ,  H04B7/185

    CPC分类号： G01S19/235 ,  G01S19/07 ,  G01S19/15 ,  G01S19/36

    摘要： A method and system pertaining to a dual antenna compensation algorithm is provided. A local area augmentation system may include a dual antenna system to receive signals from satellites. The system may switch between the antennas to receive signals, and the transition between the antennas should be seamless. Thus, phase variations between the antennas can be determined to correct for code phase variations, and hardware delays between the antennas can be determined to correct for delay differences in signals received from both antennas.

    摘要翻译： 提供了一种涉及双天线补偿算法的方法和系统。 局域增强系统可以包括用于从卫星接收信号的双天线系统。 系统可以在天线之间切换以接收信号，并且天线之间的转换应该是无缝的。 因此，可以确定天线之间的相位变化以校正码相位变化，并且可以确定天线之间的硬件延迟以校正从两个天线接收的信号中的延迟差异。

    GPS multipath detection method and system
    59.
    发明授权
    GPS multipath detection method and system 失效
    GPS多路径检测方法和系统

    公开(公告)号：US5917445A

    公开(公告)日：1999-06-29

    申请号：US775501

    申请日：1996-12-31

    申请人： Brian W. Schipper ,  Suneel I. Sheikh ,  Lawrence C. Vallot

    发明人： Brian W. Schipper ,  Suneel I. Sheikh ,  Lawrence C. Vallot

    IPC分类号： G01S1/00 ,  G01S19/05 ,  G01S19/11 ,  G01S19/21 ,  G01S19/29 ,  G01S19/46 ,  H04B7/185 ,  G01S5/02

    CPC分类号： G01S19/22 ,  G01S19/54

    摘要： A multipath detection method for use in a GPS position determination system includes providing a code pseudorange measurement representative of a range of an antenna to a space vehicle and a carrier phase pseudorange measurement representative of the range of the antenna to the space vehicle. A code-carrier measurement difference is then generated between the code pseudorange measurement and the carrier phase pseudorange measurement. This code-carrier measurement difference is examined to determine if a multipath component is present. If, the difference indicates that multipath is likely to be present, use of such measurements in computing position solutions, such as attitude solutions, is avoided. A multipath detection system for carrying out the method is also described.

    摘要翻译： 用于GPS位置确定系统的多路径检测方法包括提供代表天线到空间载波的范围的代码伪距测量，以及代表天线到空间载波的范围的载波相位伪距测量。 然后在代码伪距测量和载波相位伪距测量之间产生码载波测量差。 检查该码载波测量差异以确定是否存在多径分量。 如果差异表示多路径可能存在，则避免在计算位置解决方案中使用这种测量，例如姿态解决方案。 还描述了用于执行该方法的多路径检测系统。