BR0005611A - Método de calibração de temporização - Google Patents
Método de calibração de temporizaçãoInfo
- Publication number
- BR0005611A BR0005611A BR0005611-1A BR0005611A BR0005611A BR 0005611 A BR0005611 A BR 0005611A BR 0005611 A BR0005611 A BR 0005611A BR 0005611 A BR0005611 A BR 0005611A
- Authority
- BR
- Brazil
- Prior art keywords
- gps
- timing
- frame boundary
- time
- umpteenth
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
- G01S19/05—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing aiding data
- G01S19/06—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing aiding data employing an initial estimate of the location of the receiver as aiding data or in generating aiding data
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/14—Systems for determining direction or deviation from predetermined direction
- G01S3/46—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/23—Testing, monitoring, correcting or calibrating of receiver elements
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
<B>MéTODO DE CALIBRAçãO DE TEMPORIZAçãO<D> é mostrado um método para a derivação de uma temporização precisa de satélite de posicionamento global (GPS), pela calibração de fronteiras de quadro, para a temporização de GPS. A calibração de tempo é obtida pela determinação de uma diferença de tempo <30>t entre um tempo de GPS (ou pulso) e uma enésima fronteira de quadro. A diferença de tempo <30>t e um identificador de fronteira de quadro, especificando a enésima fronteira de quadro, são providos para um dispositivo equipado com um receptor de GPS total ou parcial, de modo que o dispositivo equipado com GPS possa sincronizar a si mesmo com a temporização de GPS. Ao sincronizar a si mesmo com a temporização de GPS, o dispositivo equipado com GPS pode pesquisar sinais de GPS, usando a informação provida por um servidor de localização geográfica, por exemplo, um servidor de WAG.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US45488399A | 1999-12-03 | 1999-12-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
BR0005611A true BR0005611A (pt) | 2001-07-17 |
Family
ID=23806461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR0005611-1A BR0005611A (pt) | 1999-12-03 | 2000-11-28 | Método de calibração de temporização |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1107017A3 (pt) |
JP (1) | JP2001183438A (pt) |
KR (1) | KR20010062101A (pt) |
CN (1) | CN1299063A (pt) |
AU (1) | AU7190100A (pt) |
BR (1) | BR0005611A (pt) |
CA (1) | CA2326292A1 (pt) |
ID (1) | ID28577A (pt) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6907224B2 (en) * | 2001-03-15 | 2005-06-14 | Qualcomm Incorporated | Time acquisition in a wireless position determination system |
JP3491631B2 (ja) * | 2001-11-28 | 2004-01-26 | 株式会社デンソー | 無線通信端末 |
US6748202B2 (en) * | 2001-12-12 | 2004-06-08 | Nokia Corporation | Method, apparatus and system for synchronizing a cellular communication system to GPS time |
US6944540B2 (en) * | 2002-03-28 | 2005-09-13 | Motorola, Inc. | Time determination in satellite positioning system receivers and methods therefor |
WO2005077063A2 (en) * | 2004-02-09 | 2005-08-25 | Semtech Corporation | Method and apparatus for aligning time references when separated by an unreliable data packet network |
US7453956B2 (en) * | 2004-08-16 | 2008-11-18 | Sony Ericsson Mobile Communications Ab | Apparatus, methods and computer program products for signal acquisition using common demodulation templates |
CN1812457B (zh) * | 2005-01-28 | 2010-12-08 | 浙江移动通信有限责任公司 | 通信网元自动时间校准方法 |
KR100912808B1 (ko) | 2007-07-11 | 2009-08-18 | 한국전자통신연구원 | 위성항법수신기를 이용한 차량용 시각동기 |
CN101644913B (zh) * | 2009-08-20 | 2013-05-29 | 中国科学院声学研究所 | 一种水下授时和同步方法及其系统 |
CN102176031B (zh) * | 2011-01-06 | 2013-02-20 | 中国科学院国家授时中心 | 双模导航系统中基于系统时差接收机完好性故障检测方法 |
CN111025339B (zh) * | 2018-10-09 | 2022-04-15 | 百度在线网络技术(北京)有限公司 | 确定定位延时的方法、装置、设备和计算机可读存储介质 |
CN112434108B (zh) * | 2020-11-10 | 2024-07-19 | 深圳市明源云科技有限公司 | 一种数据库同步的方法、装置及设备 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9524754D0 (en) * | 1995-12-04 | 1996-04-24 | Symmetricom Inc | Mobile position determination |
US6070078A (en) * | 1997-10-15 | 2000-05-30 | Ericsson Inc. | Reduced global positioning system receiver code shift search space for a cellular telephone system |
US6411811B2 (en) * | 1998-04-20 | 2002-06-25 | Ericsson Inc. | System and method for provisioning assistance global positioning system information to a mobile station |
-
2000
- 2000-11-20 CA CA002326292A patent/CA2326292A1/en not_active Abandoned
- 2000-11-20 EP EP00310294A patent/EP1107017A3/en not_active Withdrawn
- 2000-11-28 BR BR0005611-1A patent/BR0005611A/pt not_active Application Discontinuation
- 2000-11-29 AU AU71901/00A patent/AU7190100A/en not_active Abandoned
- 2000-12-01 JP JP2000366456A patent/JP2001183438A/ja active Pending
- 2000-12-01 ID IDP20001043D patent/ID28577A/id unknown
- 2000-12-01 CN CN00134464A patent/CN1299063A/zh active Pending
- 2000-12-02 KR KR1020000072763A patent/KR20010062101A/ko not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
CN1299063A (zh) | 2001-06-13 |
ID28577A (id) | 2001-06-07 |
EP1107017A3 (en) | 2003-05-02 |
JP2001183438A (ja) | 2001-07-06 |
KR20010062101A (ko) | 2001-07-07 |
CA2326292A1 (en) | 2001-06-03 |
AU7190100A (en) | 2001-06-07 |
EP1107017A2 (en) | 2001-06-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B11A | Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing | ||
B11Y | Definitive dismissal acc. article 33 of ipl - extension of time limit for request of examination expired |