公开(公告)号：WO2016011505A1

公开(公告)日：2016-01-28

申请号：PCT/AU2015/050412

申请日：2015-07-22

Applicant: LOCATA CORPORATION PTY LTD

Inventor： SMALL, David

IPC: G01S19/10 ,  G01S1/24 ,  G01S19/24 ,  G01S19/29

CPC classification number: G01S19/10 ,  G01S1/024 ,  G01S1/042 ,  G01S1/24 ,  G01S5/021 ,  G01S5/0289 ,  G01S19/254 ,  G01S19/29

Abstract: Methods and devices are presented for synchronizing positioning signals in a kinematic location network. In particular, methods and devices are presented for synchronizing a unique positioning signal generated by a positioning-unit device to a reference positioning signal generated by a reference transmitter, where the positioning-unit device and the reference transmitter are moving relative to each other. In certain embodiments the reference transmitter or the positioning-unit device, or both, self-monitor trajectory data comprising one or more of location, velocity or acceleration, e.g. using inertial navigation systems, and broadcast that data in their positioning signals. The trajectory data enables estimation of Doppler shifts and propagation delays associated with the positioning signals, allowing measurement and correction of clock drift for synchronization of the positioning signals.

Abstract translation: 呈现用于在运动位置网络中同步定位信号的方法和装置。 具体地，提出了用于使由定位单元设备产生的唯一定位信号与由参考发射器产生的参考定位信号同步的方法和设备，其中定位单元设备和参考发射器相对于彼此移动。 在某些实施例中，参考发射机或定位单元设备，或两者，包括位置，速度或加速度中的一个或多个的自我监视轨迹数据，例如。 使用惯性导航系统，并在其定位信号中广播数据。 轨迹数据使得能够估计与定位信号相关联的多普勒频移和传播延迟，允许测量和校正时钟漂移以用于定位信号的同步。

公开(公告)号：WO2014014952A1

公开(公告)日：2014-01-23

申请号：PCT/US2013/050747

申请日：2013-07-16

Applicant: MICROSOFT CORPORATION

Inventor： LIU, Jie ,  JIN, Yuzhe ,  PRIYANTHA, Nissanka Arachchige Bodhi ,  HART, Edward ,  DE PAULA, Amanda Souza

IPC: G01S19/09 ,  G01S19/42 ,  G01S5/00 ,  G01S19/25 ,  G01S19/34

CPC classification number: G01S19/09 ,  G01S5/0036 ,  G01S19/254 ,  G01S19/258 ,  G01S19/34 ,  G01S19/42

Abstract: Some implementations provide low power reduced sampling of global positioning system (GPS) locations. A server may be configured to assist a mobile device in determining a location from a plurality of GPS signal samples and corresponding time stamps provided by the mobile device, such as by identifying a set of possible reference locations, which may be used to calculate a location of the mobile device. In another example, the mobile device may sample GPS signals using a GPS receiver, compress the samples, and provide the compressed samples to the server for processing.

Abstract translation: 一些实施方案提供全球定位系统（GPS）位置的低功率减少采样。 服务器可以被配置为帮助移动设备从多个GPS信号样本和由移动设备提供的相应时间戳确定位置，诸如通过识别一组可能的参考位置，其可以用于计算位置 的移动设备。 在另一示例中，移动设备可以使用GPS接收器对GPS信号进行采样，压缩样本，并将压缩样本提供给服务器进行处理。

公开(公告)号：WO2008112016A3

公开(公告)日：2008-11-27

申请号：PCT/US2007080996

申请日：2007-10-10

Applicant: SIRF TECH INC ,  WANG CHI-SHIN ,  QIU ZONGDE ,  JIA ZHIKE

Inventor： WANG CHI-SHIN ,  QIU ZONGDE ,  JIA ZHIKE

IPC: H03M7/38

CPC classification number: G01S19/27 ,  G01S19/246 ,  G01S19/254

Abstract: The present invention provides systems and methods for enabling a navigation signal receiver to perform both data assisted and non-data assisted integration to provide better integration during signal acquisition, reacquisition and tracking. In data assisted integration mode, a receiver uses known or predicted data bits to remove the modulated data bits of a received signal prior to integration. In non data assisted integration mode, when the data bits are not known or predictable, the receiver uses an optimal estimation or maximum likelihood algorithm to determine the polarities of the modulated data bits of the received signal. This may be done by determining which of various possible bit pattern yields the maximum integrated power. When the modulated data bits are not known or predictable over a limited range, the receiver carries out data assisted integration over the known or predictable data bits and additional non data assisted integration.

Abstract translation: 本发明提供了使导航信号接收机能够执行数据辅助和非数据辅助集成的系统和方法，以在信号采集，重新采集和跟踪期间提供更好的集成。 在数据辅助积分模式中，接收机使用已知或预测的数据比特来在积分之前去除接收信号的调制数据比特。 在非数据辅助积分模式中，当数据比特未知或可预测时，接收机使用最优估计或最大似然算法来确定接收信号的调制数据比特的极性。 这可以通过确定各种可能的位模式中的哪一个产生最大集成功率来完成。 当调制数据位在有限范围内不知道或可预测时，接收机通过已知或可预测的数据位和附加的非数据辅助积分来执行数据辅助积分。

公开(公告)号：WO2007126401A1

公开(公告)日：2007-11-08

申请号：PCT/US2005/044458

申请日：2005-12-07

Applicant: SIRF TECHNOLOGY, INC. ,  TURETZKY, Gregory ,  ANDERSON, Erik

Inventor： TURETZKY, Gregory ,  ANDERSON, Erik

IPC: G01S1/00 ,  G01S5/14 ,  H04B7/185

CPC classification number: G01S19/14 ,  G01S5/0009 ,  G01S19/235 ,  G01S19/254 ,  G01S19/256 ,  G01S19/34 ,  H04W64/00

Abstract: A software communication device with a tunable transceiver that is capable of receipt of both satellite positioning data and a communication network with a wireless network where positioning data is used to efficiently make a connection to the communication network or communication link to a network is used reduce the time to acquire GPS satellites and determine position.

Abstract translation: 具有能够接收卫星定位数据的两个卫星定位数据和与无线网络的通信网络的软件通信设备，其中使用定位数据来有效地连接到通信网络或到网络的通信链路， 获取GPS卫星的时间并确定位置。

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：WO02071092A2

公开(公告)日：2002-09-12

申请号：PCT/US0146968

申请日：2001-12-04

Applicant: QUALCOMM INC

Inventor： KRASNER NORMAN F ,  CONFLITTI PAUL A

IPC: G01S19/35 ,  G01S1/00 ,  G01S1/38 ,  G01S19/24 ,  G01S19/30 ,  G01S19/37 ,  G01S

CPC classification number: G01S19/30 ,  G01S5/0036 ,  G01S19/09 ,  G01S19/254 ,  G01S19/256 ,  G01S19/258

Abstract: Methods and apparatuses for processing Satellite Positioning System (SPS) signals. In one exemplary method, a first set of frequency coefficient, which corresponds to a first Doppler frequency of an SPS signal, is determined, and said SPS signal is processed in a matched filter with the first set of frequency coefficients during a first window of time. A second set of frequency coefficients, which corresponds to a second Doppler frequency of the SPS signal, is determined, and the SPS signal is processed in the matched filter with the second set of frequency coefficients during a second window of time, where the first and second windows of time occur within a period of time which is not greater than one SPS frame period. In another exemplary method, a first SPS signal is processed in a matched filter with a first set of pseudonoise (PN) coefficients during a first window of time, where the first set of PN coefficients corresponds to the first SPS signal, and a second SPS signal is processed in the matched filter with a second set of PN coefficients (which correspond with the second SPS signal) during a second window of time, wherein the first window and the second windows occur within a period of time not greater than one SPS frame period.

Abstract translation: 卫星定位系统（SPS）信号处理方法及装置。 在一个示例性方法中，确定对应于SPS信号的第一多普勒频率的第一组频率系数，并且在第一窗口期间，在具有第一组频率系数的匹配滤波器中处理所述SPS信号 。 确定对应于SPS信号的第二多普勒频率的第二组频率系数，并且在第二时间窗口期间，在具有第二组频率系数的匹配滤波器中处理SPS信号，其中第一和第 第二时间窗口在不大于一个SPS帧周期的时间段内出现。 在另一示例性方法中，在第一窗口期间，第一组PN系数对应于第一SPS信号的第一组伪噪声（PN）系数的匹配滤波器中处理第一SPS信号，以及第二SPS 信号在匹配滤波器中在第二时间窗口期间与第二组PN系数（其对应于第二SPS信号）进行处理，其中第一窗口和第二窗口在不大于一个SPS帧的时间段内出现 期。

公开(公告)号：WO0179877A2

公开(公告)日：2001-10-25

申请号：PCT/IB0100636

申请日：2001-04-17

Applicant: CONEXANT SYSTEMS INC

Inventor： GRONEMEYER STEVEN A

IPC: G01S1/00 ,  G01S19/24 ,  G01S19/37 ,  H04B1/707 ,  H04B7/01 ,  H04L27/00 ,  G01S1/04 ,  G01S5/14

CPC classification number: G01S19/235 ,  G01S19/254 ,  G01S19/256 ,  G01S19/29 ,  G01S19/30 ,  H04B1/707 ,  H04L2027/0034

Abstract: A signal detector employs a coherent accumulation system that coherently combines the correlation results derived from segments of samples of a received signal. The segments may have non-uniform lengths and may have been obtained over different and non-overlapping time periods. The segments are obtained during sampling windows of arbitrary length and at arbitrary times, and the results of processing the segments are successively combined in a coherent manner (separate magnitude and phase accumulation) until a threshold signal-to-noise ratio (SNR) has been achieved. Coherent integration is enabled by introducing a carrier phase offset as well as a code phase offset, so that different segments are aligned in carrier phase as well as code phase. Although not limited to this application, in one implementation example, the signal detector is used in connection with and as part of a global positioning system (GPS) receiver.

Abstract translation: 信号检测器采用相干累加系统，其相干地组合从接收信号的采样段导出的相关结果。 这些段可以具有不均匀的长度，并且可以在不同的和非重叠的时间段上获得。 在任意长度和任意时间的采样窗口期间获得段，并且以相干方式（分开的幅度和相位累积）连续地组合段的处理结果，直到阈值信噪比（SNR）已经被 实现。 通过引入载波相位偏移以及码相位偏移来实现相干积分，使得不同的段在载波相位以及码相位中对准。 尽管不限于该应用，但是在一个实施例中，信号检测器与全球定位系统（GPS）接收机相关并且作为全球定位系统（GPS）接收机的一部分使用。

公开(公告)号：WO00014571A1

公开(公告)日：2000-03-16

申请号：PCT/US1999/020372

申请日：1999-09-03

IPC: G01S1/00 ,  G01S1/04 ,  G01S5/00 ,  G01S19/23 ,  G01S19/25 ,  G01S19/30 ,  G01S19/48 ,  H04M1/725 ,  H04Q7/34 ,  G01S5/14

CPC classification number: G01S5/0036 ,  G01S19/235 ,  G01S19/254 ,  G01S19/258 ,  G01S19/30

Abstract: The present invention is a novel and improved method and apparatus for performing position location in wireless communications system. A method for performing position location on a subscriber unit in a terrestrial wireless telephone system using a set of satellites each transmitting a signal, the terrestrial wireless telephone system having base stations (12), including the steps of transmitting an aiding message from the base station (12) to the subscriber unit, said aiding message containing information regarding a data boundary for each signal from the set of satellites, applying correlation codes to each signal yielding corresponding correlation data and accumulating said correlation data over a first interval preceding a corresponding data boundary yielding a first accumulation result, and a second interval following said corresponding data boundary yielding a second accumulation result.

Abstract translation: 本发明是一种用于在无线通信系统中执行位置定位的新颖且改进的方法和装置。 一种用于在地面无线电话系统中的用户单元上执行位置定位的方法，该方法使用一组发射信号的卫星，所述地面无线电话系统具有基站（12），包括从基站发送辅助消息的步骤 （12）到所述用户单元，所述辅助消息包含关于来自所述卫星组的每个信号的数据边界的信息，将相关代码应用于产生相应相关数据的每个信号，并且在对应数据边界之前的第一间隔上累加所述相关数据 产生第一累积结果，并且在所述对应数据边界之后的第二间隔产生第二累积结果。

公开(公告)号：WO1997014057A1

公开(公告)日：1997-04-17

申请号：PCT/US1996016178

申请日：1996-10-08

Applicant: SNAPTRACK, INC.

Inventor： SNAPTRACK, INC. ,  KRASNER, Norman, F.

IPC: G01S05/14

CPC classification number: H04B1/3805 ,  G01S5/0027 ,  G01S5/0036 ,  G01S5/0054 ,  G01S19/07 ,  G01S19/09 ,  G01S19/11 ,  G01S19/235 ,  G01S19/252 ,  G01S19/254 ,  G01S19/256 ,  G01S19/258 ,  G01S19/34 ,  G01S19/41 ,  G01S2205/008 ,  G06F2221/2111 ,  H01Q1/273 ,  H01Q21/28 ,  H03D7/163 ,  H03J7/06 ,  H03J2200/11

Abstract: A global positioning system (GPS) receiver has first circuitry for receiving and processing pseudorandom sequences transmitted by a number of GPS satellites. The first circuitry is configured to perform conventional correlation operations on the received pseudorandom sequences to determine pseudoranges from the GPS receiver to the GPS satellites. The GPS receiver also includes second circuitry coupled to the first circuitry. The second circuitry is configured to receive and process the pseudorandom sequences during blockage conditions. The second circuitry processes the pseudorandom sequences by digitizing and storing a predetermined record length of the received sequences and then performing fast convolution operations on the stored data to determine the pseudoranges. The GPS receiver may have a common circuitry for receiving GPS signals from in view satellites and downconverting the RF frequency of the received GPS signals to an intermediate frequency (IF). The IF signals are split into two signal paths, a first of which provides the conventional correlation processing to calculate the pseudoranges. During blockage conditions, the IF signal is passed to the second signal path wherein the IF signals are digitized and stored in memory and later processed using the fast convolution operations to provide the pseudoranges. Alternative arrangements for the two signal paths include separate downconverters or shared digitizers. One embodiment provides both signal paths on a single integrated circuit with shared circuitry executing computer-readable instructions to perform GPS signal processing appropriate to the reception conditions.

Abstract translation: 全球定位系统（GPS）接收机具有用于接收和处理由多个GPS卫星发送的伪随机序列的第一电路。 第一电路被配置为对所接收的伪随机序列执行传统的相关操作，以确定从GPS接收机到GPS卫星的伪距离。 GPS接收机还包括耦合到第一电路的第二电路。 第二电路被配置为在阻塞状态期间接收和处理伪随机序列。 第二电路通过数字化并存储接收到的序列的预定记录长度然后对所存储的数据执行快速卷积运算来确定伪距来处理伪随机序列。 GPS接收机可以具有用于从视频卫星接收GPS信号并将接收的GPS信号的RF频率下变频到中频（IF）的公共电路。 IF信号被分成两个信号路径，第一个信号路径提供常规的相关处理来计算伪距离。 在阻塞条件期间，IF信号被传递到第二信号路径，其中IF信号被数字化并存储在存储器中，并且随后使用快速卷积运算来处理以提供伪距。 两个信号路径的替代布置包括单独的下变频器或共享数字化仪。 一个实施例在单个集成电路上提供两个信号路径，共享电路执行计算机可读指令以执行适合于接收条件的GPS信号处理。

公开(公告)号：WO1997014055A1

公开(公告)日：1997-04-17

申请号：PCT/US1996016160

申请日：1996-10-08

Applicant: SNAPTRACK, INC.

Inventor： SNAPTRACK, INC. ,  KRASNER, Norman, F.

IPC: G01S05/14

CPC classification number: G01S19/235 ,  G01S5/0027 ,  G01S5/0036 ,  G01S5/0045 ,  G01S5/009 ,  G01S19/07 ,  G01S19/09 ,  G01S19/11 ,  G01S19/252 ,  G01S19/254 ,  G01S19/256 ,  G01S19/258 ,  G01S19/34 ,  G01S19/37 ,  G01S19/41 ,  G01S2205/008 ,  G06F2221/2111 ,  H01Q1/273 ,  H01Q21/28 ,  H03D7/163 ,  H03J7/06 ,  H03J2200/11 ,  H04B1/3805 ,  H04B2001/3894

Abstract: A positioning sensor receives and stores a predetermined record length of positioning signals while in a fix position located such that the positioning sensor can receive positioning signals. Thereafter, the stored positioning signals are processed to determine the geographic location of the fix position. The fix position may correspond to a location of an object of interest or it may be in a known location relative to the position of the object, in which case once the geographic location of the fix position has been computed, the geographic location of the object can be derived. The positioning sensor includes a Snapshot GPS receiver which may collect and process GPS signals transmitted by GPS satellites using fast convolution operations to compute pseudoranges from the GPS satellites to the fix position. Alternatively, these computations may be performed at a basestation. The computed pseudoranges may then be used to determine the geographic location of the fix position. The positioning sensor may be equipped with depth sensing means, such as a pressure sensor, which allows a determination of the depth of submerged object to be made. The positioning sensor may further be equipped with signal detecting means for determining when the positioning sensor is in the fix position.

Abstract translation: 定位传感器接收并存储定位信号的预定记录长度，同时位于定位传感器可以接收定位信号的固定位置。 此后，处理存储的定位信号以确定固定位置的地理位置。 固定位置可以对应于感兴趣对象的位置，或者它可以在相对于对象的位置的已知位置中，在这种情况下，一旦已经计算了固定位置的地理位置，该对象的地理位置 可以派生。 定位传感器包括一个快照GPS接收器，它可以采集快速卷积运算来收集和处理由GPS卫星发射的GPS信号，以计算从GPS卫星到固定位置的伪距。 或者，这些计算可以在基站执行。 然后可以使用计算的伪距来确定固定位置的地理位置。 定位传感器可以配备有诸如压力传感器的深度感测装置，其允许确定要被制造的浸没物体的深度。 定位传感器还可以配备有用于确定定位传感器何时处于固定位置的信号检测装置。