公开(公告)号：WO2007076539A3

公开(公告)日：2008-06-05

申请号：PCT/US2006062732

申请日：2006-12-29

Applicant: CENTRALITY COMMUNICATIONS INC ,  WANG CHI-SHIN ,  QIU ZONGDE ,  KUDRETHAYA SHRIDHARA ,  MO JUN

Inventor： WANG CHI-SHIN ,  QIU ZONGDE ,  KUDRETHAYA SHRIDHARA ,  MO JUN

IPC: G01S19/24 ,  G01S19/23 ,  G01S19/27 ,  G01S19/29 ,  G01S19/34

CPC classification number: G01S19/24 ,  G01S19/246 ,  G01S19/27 ,  G01S19/29 ,  G01S19/34

Abstract: The present invention provides GPS receivers capable of tracking very weak GPS signals particularly in an indoor environment without assistance from an external server or a network. In a preferred embodiment, a GPS receiver initially acquires and locks onto GPS satellite signals to compute receiver position outdoors. The GPS receiver then tracks at least one satellite signal indoors to maintain acquisition parameters for quick acquisition of GPS signals. To save power, the receiver automatically goes to the sleep state and periodically wakes up, i.e., powers up, to maintain the at least one satellite signal tracking. During the wakeup state, the receiver collects ephemeris data from the at least one satellite signal when the ephemeris data needs to be updated for quick acquisition of GPS signals.

Abstract translation: 本发明提供了能够跟踪非常弱的GPS信号的GPS接收机，特别是在室内环境中，无需外部服务器或网络的协助。 在一个优选实施例中，GPS接收机最初获取并锁定到GPS卫星信号上以在室外计算接收器位置。 GPS接收机然后在室内跟踪至少一个卫星信号，以维持采集参数，以便快速获取GPS信号。 为了节省电力，接收机自动进入睡眠状态并周期性地唤醒，即上电，以维持至少一个卫星信号跟踪。 在唤醒状态期间，当需要更新星历数据以快速获取GPS信号时，接收器从至少一个卫星信号收集星历数据。

公开(公告)号：WO2008060100A1

公开(公告)日：2008-05-22

申请号：PCT/KR2007/005717

申请日：2007-11-14

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  CHO, Young-Su ,  KIM, Byung-Doo ,  CHO, Seong-Yun ,  CHOI, Wan-Sik ,  PARK, Jong-Hyun

Inventor： CHO, Young-Su ,  KIM, Byung-Doo ,  CHO, Seong-Yun ,  CHOI, Wan-Sik ,  PARK, Jong-Hyun

IPC: H04L27/26

CPC classification number: H04L27/0014 ,  G01S19/29 ,  H04L2027/0071

Abstract: A method and apparatus for acquiring a refined carrier frequency by optimizing search areas are provided. The apparatus for acquiring a refined carrier frequency by optimizing search areas includes: a refined signal generation unit using a coarse carrier frequency and a coarse code phase extracted from a digitized signal and obtaining a refined carrier frequency approximated to the carrier frequency of an original signal from which the digitized signal is obtained by conversion; and a refined carrier frequency searching unit setting and providing a search area in which the refined signal acquisition unit can obtain the refined carrier frequency based on the coarse carrier frequency. According to the method and apparatus, as a result of the searching method reducing a search time, acquisition of a refined carrier frequency as well as fast acquisition of a signal is enabled, thereby allowing a precise initial value to be provided to a signal tracking unit.

Abstract translation: 提供一种通过优化搜索区域来获取精细载波频率的方法和装置。 通过优化搜索区域来获取精细载波频率的装置包括：使用从数字化信号提取的粗载波频率和粗码相位的精细信号生成单元，并获得近似于原始信号的载波频率的精细载波频率 通过转换获得数字化信号; 以及精细载波频率搜索单元，其设置并提供精确信号获取单元可以基于粗略载波频率获得精细载波频率的搜索区域。 根据该方法和装置，通过搜索方法减少搜索时间的结果，可以获得精确的载波频率以及快速获取信号，从而允许精确的初始值提供给信号跟踪单元 。

公开(公告)号：WO2008033785A2

公开(公告)日：2008-03-20

申请号：PCT/US2007/078077

申请日：2007-09-10

Applicant: QUALCOMM INCORPORATED ,  PON, Rayman, Wai

Inventor： PON, Rayman, Wai

IPC: G01S19/05 ,  G01S19/06 ,  G01S19/28 ,  G01S19/29 ,  G01S19/30 ,  G01S19/33 ,  G01S19/46

CPC classification number: G01S19/29 ,  G01S19/05 ,  G01S19/28 ,  G01S19/30 ,  G01S19/33

Abstract: The subject matter disclosed herein relates to a system and method for acquiring signal received from space vehicles (SVs) in a satellite navigation system. In one example, although claimed subject matter is not so limited, information processed in acquiring a signal from a first SV may be used in acquiring a signal from a second SV.

Abstract translation: 本文公开的主题涉及一种用于从卫星导航系统中从太空飞行器（SV）接收的信号的系统和方法。 在一个示例中，虽然所要求保护的主题不限于此，但是在从第一SV获取信号时处理的信息可以用于从第二SV获取信号。

公开(公告)号：WO2008017860A1

公开(公告)日：2008-02-14

申请号：PCT/GB2007/003050

申请日：2007-08-10

Applicant: THE UNIVERSITY OF SURREY ,  HODGART, Matthew, Stephen ,  BLUNT, Paul, David

Inventor： HODGART, Matthew, Stephen ,  BLUNT, Paul, David

IPC: G01S1/00

CPC classification number: G01S19/30 ,  G01S19/24 ,  G01S19/29

Abstract: Binary Offset Carrier (BOC) is the agreed modulation for signals of next generation Global Navigation satellite systems (GNSS). Compared to current phase shift keying (PSK) modulation by a code, there is a further modulation by a sub-carrier. There is a known major difficulty with BOC called 'false lock' where early/late gates settle on the wrong peak of the multi-peaked correlation function. This invention eliminates the problem by eliminating that correlation. Instead, a two dimensional correlation is tracked independently to realise a dual estimate. An unambiguous lower accuracy estimate derived from the code phase is used to make an integer correction to a higher accuracy but ambiguous independent estimate based on the sub-carrier phase. The actual receiver may adopt a triple loop, instead of the usual double loop, where.carrier phase, sub-carrier phase and code phase are tracked independently but interactively.

Abstract translation: 二进制偏移载波（BOC）是下一代全球导航卫星系统（GNSS）信号的协商调制。 与通过码的当前相移键控（PSK）调制相比，副载波进一步进行调制。 BOC称之为“假锁”，其中早/晚门定位于多峰相关函数的错误峰值，已知一个主要困难。 本发明通过消除该相关性来消除该问题。 相反，独立地跟踪二维相关以实现双重估计。 使用从码相位导出的明确的较低精度估计来使得基于子载波相位的更高精度但是模糊的独立估计的整数校正。 实际的接收机可以采用三重环路，而不是通常的双回路，其中载波相位，子载波相位和码相位被独立地跟踪，但是交互地被跟踪。

公开(公告)号：WO2007138388A1

公开(公告)日：2007-12-06

申请号：PCT/IB2006/051714

申请日：2006-05-30

Applicant: Nokia Corporation ,  WIROLA, Lauri ,  SYRJARINNE, Jari

Inventor： WIROLA, Lauri ,  SYRJARINNE, Jari

IPC: G01S5/14 ,  G01S1/00

CPC classification number: G01S19/43 ,  G01S19/29

Abstract: The invention relates to a method comprising receiving at least one set of data on satellite signals from at least one first GNSS receiver 22, each received set of data being associated to a particular instant of time. The method further comprises estimating data for at least one additional set of data associated to a respective additional instant of time based on the at least one received set of data. The method further comprises providing data from the at least one additional set of data in addition to data from the at least one received set of data for a determination of a position of at least one second GNSS receiver 12 relative to a position of the at least one first GNSS receiver 22.

Abstract translation: 本发明涉及一种方法，包括从至少一个第一GNSS接收器22接收关于卫星信号的至少一组数据，每个接收到的数据集合与特定时刻相关联。 所述方法还包括基于所述至少一个接收的数据集来估计与相应附加时刻相关联的至少一个附加数据集的数据。 该方法还包括从至少一个附加数据集合提供数据，除了来自至少一个接收的数据集的数据之外，还确定至少一个第二GNSS接收器12相对于至少一个第二GNSS接收器12的位置的位置 一个第一GNSS接收器22。

公开(公告)号：WO2007076539A2

公开(公告)日：2007-07-05

申请号：PCT/US2006/062732

申请日：2006-12-29

Applicant: CENTRALITY COMMUNICATIONS, INC. ,  WANG, Chi-Shin ,  QIU, Zongde ,  KUDRETHAYA, Shridhara ,  MO, Jun

Inventor： WANG, Chi-Shin ,  QIU, Zongde ,  KUDRETHAYA, Shridhara ,  MO, Jun

IPC: G01S5/14

CPC classification number: G01S19/24 ,  G01S19/246 ,  G01S19/27 ,  G01S19/29 ,  G01S19/34

Abstract: The present invention provides GPS receivers capable of tracking very weak GPS signals particularly in an indoor environment without assistance from an external server or a network. In a preferred embodiment, a GPS receiver initially acquires and locks onto GPS satellite signals to compute receiver position outdoors. The GPS receiver then tracks at least one satellite signal indoors to maintain acquisition parameters for quick acquisition of GPS signals. To save power, the receiver automatically goes to the sleep state and periodically wakes up, i.e., powers up, to maintain the at least one satellite signal tracking. During the wakeup state, the receiver collects ephemeris data from the at least one satellite signal when the ephemeris data needs to be updated for quick acquisition of GPS signals.

Abstract translation: 本发明提供了能够跟踪非常弱的GPS信号的GPS接收机，特别是在室内环境中，无需外部服务器或网络的协助。 在优选实施例中，GPS接收机最初获取并锁定到GPS卫星信号上以在室外计算接收机位置。 GPS接收机然后在室内跟踪至少一个卫星信号，以维持采集参数，以便快速获取GPS信号。 为了节省电力，接收机自动进入睡眠状态并周期性地唤醒，即上电，以维持至少一个卫星信号跟踪。 在唤醒状态期间，当需要更新星历数据以便快速获取GPS信号时，接收器从至少一个卫星信号收集星历数据。

公开(公告)号：WO2007050925A1

公开(公告)日：2007-05-03

申请号：PCT/US2006/042059

申请日：2006-10-27

Applicant: QUALCOMM INCORPORATED ,  BREHLER, Matthias ,  CHALLA, Raghu ,  MAHAJAN, Amit ,  SIMIC, Emilija, M.

Inventor： BREHLER, Matthias ,  CHALLA, Raghu ,  MAHAJAN, Amit ,  SIMIC, Emilija, M.

IPC: H04L27/00 ,  G01S1/00

CPC classification number: H04L27/0014 ,  G01S19/235 ,  G01S19/29 ,  H04L2027/0046 ,  H04L2027/0065

Abstract: A system, method and device for frequency acquisition. In particular, the embodiments allow for a mobile telephone to simultaneously receive data and/or voice signals while acquiring a GPS signal for its navigation feature. The system, method and device of the present embodiments employ a digital rotator and a local oscillator in concert to acquire the respective signals, correct any frequency errors associated with those signals, and maintain a local timing reference suitable for receiving and transmitting data through a mobile network while simultaneously providing an accurate location through a GPS system.

Abstract translation: 一种用于频率采集的系统，方法和装置。 具体地，实施例允许移动电话在获取用于其导航特征的GPS信号的同时接收数据和/或语音信号。 本实施例的系统，方法和装置一起使用数字旋转器和本地振荡器来获取相应的信号，校正与这些信号相关联的任何频率误差，并且维持适合于通过移动台接收和发送数据的本地定时参考 同时通过GPS系统提供准确的位置。

公开(公告)号：WO0031888A9

公开(公告)日：2006-11-16

申请号：PCT/US9927749

申请日：1999-11-22

Applicant: NAVCOM TECH INC

Inventor： WOO RICHARD K T ,  QUAN JOSE O ,  CHENG UNJENG

IPC: G01S1/00 ,  G01S19/24 ,  G01S19/29 ,  G01S19/30 ,  G01S19/32 ,  G01S19/37 ,  H04B1/7085 ,  H04L27/00

CPC classification number: H04B1/7085 ,  G01S19/24 ,  G01S19/29 ,  G01S19/30 ,  G01S19/32 ,  G01S19/37

Abstract: A GPS receiver uses the energy of the L1 (221) and L2 (222) GPS satellite signals to track the phase of the L1 and L2 P-code and the carrier phase of the L2 signal. The in-phase channel of the L1 signal is correlated with the P-code (316) from a P-code generator (303) in the L1 channel of the receiver. Similarly, the in-phase and quadrature channels of the received L2 P-code signal are correlated with the P-code (357, 358) in the receiver L2 channel. Polarity transitions between the two W-bits over the I & D integration (310, 311) period are detected by a threshold comparison (320) with the I & D output of the L1 punctual P-code correlation signal (312). When there is polarity change, the L1 and L2 I & D outputs are not used for L2 carrier demodulation. Otherwise, the I & D output of the L1 in-phase Punctual P-code correlation (312) is combined (347) with the L2 in-phase Punctual P-code correlation (337) in accordance with the L1 and L2 signal power ratio. This summed signal (347) is multiplied (348) with the I & D output of the L2 quadrature channel early-late P-code correlation (338) to obtain a product signal that provides an estimate of the L2 carrier phase.

Abstract translation: GPS接收机使用L1（221）和L2（222）GPS卫星信号的能量来跟踪L1和L2 P码的相位以及L2信号的载波相位。 L1信号的同相信道与来自接收机的L1信道中的P码发生器（303）的P码（316）相关。 类似地，接收的L2P码信号的同相和正交信道与接收机L2信道中的P码（357,358）相关。 通过与L1准时P码相关信号（312）的I＆D输出的阈值比较（320）来检测在I＆D积分（310,311）周期之间的两个W位之间的极性转换。 当有极性变化时，L1和L2 I＆D输出不用于L2载波解调。 否则，根据L1和L2信号功率比，将L1同相准时P码相关（312）的I＆D输出与L2同步准点P码相关（337）组合（347） 。 将该求和信号（347）与L2正交信道提前P码相关（338）的I＆D输出相乘（348）以获得提供L2载波相位的估计的乘积信号。

公开(公告)号：WO2006069852A1

公开(公告)日：2006-07-06

申请号：PCT/EP2005/056073

申请日：2005-11-18

Applicant: ALCATEL ,  MONNERAT, Michel ,  LOBERT, Bruno

Inventor： MONNERAT, Michel ,  LOBERT, Bruno

IPC: G01S1/00 ,  G01S5/14

CPC classification number: G01S19/26 ,  G01S19/28 ,  G01S19/29 ,  G01S19/52

Abstract: A receiver (R) for use in a user mobile terminal (U) in a satellite positioning system having a constellation of satellites (S) in which the receiver (R) acquires data from a satellite related to the position of the mobile terminal (U). A MEMS device (M) is incorporated in the receiver (R) and is adapted for detecting the absolute value Formula (I) of the speed of the mobile terminal (U) and subsequently providing said value to the receiver (U). Means are provided for computing, by or for the receiver (R), the value corresponding to the vector components (V ux , V uy , V uz ) of the speed of the mobile terminal which in turn make possible the Doppler effect related to the users speed is obtained.

Abstract translation: 一种在具有卫星星座（S）的卫星定位系统中的用户移动终端（U）中使用的接收机（R），其中接收机（R）从与移动终端（U）的位置相关的卫星获取数据 ）。 MEMS器件（M）被并入接收器（R）中，并且适于检测移动终端（U）的速度的绝对值公式（I），并且随后向接收器（U）提供所述值。 提供了用于由接收器（R）计算或为其接收（R）的装置，对应于矢量分量的值（V ux ux，u u y，，，u / / / /） 获得移动终端的速度，从而使得与用户速度相关的多普勒效应成为可能。

公开(公告)号：WO2005066650A1

公开(公告)日：2005-07-21

申请号：PCT/FR2004/002993

申请日：2004-11-22

Applicant: ALCATEL ,  MONNERAT, Michel

Inventor： MONNERAT, Michel

IPC: G01S1/00

CPC classification number: G01S19/29 ,  G01S19/25

Abstract: La présente invention concerne un procédé d'acquisition de données satellitaires par un dispositif mobile incluant un récepteur 10 de radionavigation satellitaire RNSS. Ce procédé comporte les étapes suivantes - réception par ledit récepteur 10 d'un signal S(t) émis par une pluralité de satellites, ledit signal correspondant à une somme de signaux envoyés chacun par un satellite et modulés chacun par un signal étalé spectralement et caractéristique dudit satellite, - génération d'une pluralité de répliques locales RS1, RS2, RS3 générées par ledit récepteur 10, chacune desdites répliques étant la réplique d'un signal étalé spectralement et caractéristique d'un satellite, - correction fréquentielle de chacune desdites répliques locales par compensation de l'effet Doppler de chacun desdits satellites, - sommation de ladite pluralité de répliques corrigées CD1, CD2 CD3, - détermination de la fonction F(t) de corrélation en fonction du temps entre la somme de ladite pluralité de répliques corrigées et ledit signal S(t) de données satellitaires.

Abstract translation: 本发明涉及使用包括无线电导航卫星（RNSS）接收机（10）的移动设备来采集卫星数据的方法。 本发明的方法包括以下步骤：接收机（10）接收由多个卫星发送的信号S（t），所述信号对应于由卫星发送并被频谱调制的信号之和， 是卫星特征的扩频信号; 生成由接收机（10）生成的多个本地应答RS1，RS2，RS3，每个所述应答是来自作为卫星特征的频谱扩展信号的应答; 通过补偿每个卫星的多普勒效应来对每个本地应答进行频率校正; 多个校正回答CD1，CD2 CD3的总和; 以及根据所述多个经校正的答复的总和与卫星数据信号S（t）之间的时间的函数确定相关函数F（t）。