ATE393401T1 - Verfahren und vorrichtung zur durchführung einer signalkorrelation unter verwendung vorgeschichtlicher korrelationsdaten - Google Patents
Verfahren und vorrichtung zur durchführung einer signalkorrelation unter verwendung vorgeschichtlicher korrelationsdatenInfo
- Publication number
- ATE393401T1 ATE393401T1 AT04817333T AT04817333T ATE393401T1 AT E393401 T1 ATE393401 T1 AT E393401T1 AT 04817333 T AT04817333 T AT 04817333T AT 04817333 T AT04817333 T AT 04817333T AT E393401 T1 ATE393401 T1 AT E393401T1
- Authority
- AT
- Austria
- Prior art keywords
- correlation
- performing signal
- historical
- satellite
- processor
- 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
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
-
- 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
- G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
- G01S19/30—Acquisition or tracking or demodulation of signals transmitted by the system code related
-
- 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
- G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
-
- 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
- G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
- G01S19/29—Acquisition or tracking or demodulation of signals transmitted by the system carrier including Doppler, related
-
- 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
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/14—Determining absolute distances from a plurality of spaced points of known location
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/15—Correlation function computation including computation of convolution operations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7073—Synchronisation aspects
- H04B1/7075—Synchronisation aspects with code phase acquisition
- H04B1/70751—Synchronisation aspects with code phase acquisition using partial detection
- H04B1/70752—Partial correlation
-
- 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
- G01S19/235—Calibration of receiver components
-
- 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
- G01S19/35—Constructional details or hardware or software details of the signal processing chain
- G01S19/37—Hardware or software details of the signal processing chain
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7073—Synchronisation aspects
- H04B1/7075—Synchronisation aspects with code phase acquisition
- H04B1/7077—Multi-step acquisition, e.g. multi-dwell, coarse-fine or validation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
- H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
- H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
- H04B2201/70715—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation with application-specific features
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mathematical Optimization (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Analysis (AREA)
- Signal Processing (AREA)
- Pure & Applied Mathematics (AREA)
- Computational Mathematics (AREA)
- Data Mining & Analysis (AREA)
- Databases & Information Systems (AREA)
- Algebra (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Computing Systems (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Complex Calculations (AREA)
- Image Analysis (AREA)
- Holo Graphy (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/690,973 US7567636B2 (en) | 2001-05-18 | 2003-10-22 | Method and apparatus for performing signal correlation using historical correlation data |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE393401T1 true ATE393401T1 (de) | 2008-05-15 |
Family
ID=34521769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT04817333T ATE393401T1 (de) | 2003-10-22 | 2004-10-21 | Verfahren und vorrichtung zur durchführung einer signalkorrelation unter verwendung vorgeschichtlicher korrelationsdaten |
Country Status (7)
| Country | Link |
|---|---|
| US (2) | US7567636B2 (de) |
| EP (1) | EP1676144B1 (de) |
| JP (1) | JP2007510891A (de) |
| KR (1) | KR100964935B1 (de) |
| AT (1) | ATE393401T1 (de) |
| DE (1) | DE602004013356T2 (de) |
| WO (1) | WO2005040845A1 (de) |
Families Citing this family (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7567636B2 (en) * | 2001-05-18 | 2009-07-28 | Global Locate, Inc. | Method and apparatus for performing signal correlation using historical correlation data |
| US7769076B2 (en) * | 2001-05-18 | 2010-08-03 | Broadcom Corporation | Method and apparatus for performing frequency synchronization |
| US7995682B2 (en) * | 2001-05-18 | 2011-08-09 | Broadcom Corporation | Method and apparatus for performing signal processing using historical correlation data |
| US7006556B2 (en) * | 2001-05-18 | 2006-02-28 | Global Locate, Inc. | Method and apparatus for performing signal correlation at multiple resolutions to mitigate multipath interference |
| GB2400282B8 (en) * | 2003-03-31 | 2014-08-27 | St Microelectronics Res & Dev | Integrated circuit for code acquisition |
| EP1545019A1 (de) * | 2003-12-19 | 2005-06-22 | Telefonaktiebolaget LM Ericsson (publ) | GPS-Empfänger mit Differentialkorrelation |
| US7447253B2 (en) * | 2004-02-06 | 2008-11-04 | Glocal Locate, Inc. | Method and apparatus for processing satellite positioning system signals to obtain time information |
| ATE515835T1 (de) * | 2005-05-11 | 2011-07-15 | Nordnav Technologies Ab | Spreizspektrumkorrelator |
| US7986723B2 (en) * | 2005-07-06 | 2011-07-26 | National Institute Of Information And Communications Technology | Delay estimation apparatus and method |
| US7778311B2 (en) * | 2005-10-04 | 2010-08-17 | Sirf Technology Holdings, Inc. | Bit synchronization for weak navigational satellite signals |
| US7613258B2 (en) * | 2006-02-28 | 2009-11-03 | O2Micro International Ltd. | Apparatus and method for determining GPS tracking loop parameter based on SNR estimation |
| EP1991881B1 (de) | 2006-03-09 | 2017-05-03 | European Space Agency | Empfänger und sender zur verwendung in einem satellitennavigationssystem |
| US8149897B2 (en) | 2006-05-26 | 2012-04-03 | Global Locate, Inc. | Method and apparatus for performing signal correlation for signals received from satellites in multiple satellite systems |
| US7903028B2 (en) * | 2006-12-18 | 2011-03-08 | Sirf Technology Holdings, Inc. | Ephemeris download from weak signals |
| US7869485B2 (en) * | 2007-06-21 | 2011-01-11 | O2Micro International Ltd. | Method and apparatus for detecting lock status of a GPS signal |
| US8054872B2 (en) * | 2007-06-21 | 2011-11-08 | O2Micro, Inc. | Method and apparatus for signal carrier-to-noise power density ratio calculation |
| JP5005446B2 (ja) * | 2007-07-03 | 2012-08-22 | 日本無線株式会社 | 自立型高感度衛星信号受信機 |
| US7924224B2 (en) * | 2008-08-15 | 2011-04-12 | Trueposition, Inc. | Variable coherence integration for the location of weak signals |
| US8362951B2 (en) * | 2009-07-02 | 2013-01-29 | Qualcomm Incorporated | Carrier phase processing in discontinuous satellite positioning system tracking |
| US8730101B2 (en) * | 2010-05-13 | 2014-05-20 | Qualcomm Incorporated | High sensitivity satellite positioning system receiver |
| US9568609B2 (en) | 2010-05-13 | 2017-02-14 | Qualcomm Incorporated | High sensitivity satellite positioning system receiver |
| US8922430B2 (en) | 2011-12-22 | 2014-12-30 | Trueposition, Inc. | Optimization of variable coherence integration for the location of weak signals |
| US9130786B2 (en) * | 2013-03-15 | 2015-09-08 | Qualcomm Incorporated | Device and method for computing a channel estimate |
| CN103532641B (zh) * | 2013-09-17 | 2015-03-18 | 华中科技大学 | 一种用于卫星导航系统的射频信号质量评估方法 |
| WO2016027727A1 (ja) * | 2014-08-20 | 2016-02-25 | ソニー株式会社 | 全地球航法衛星システムの受信装置および受信方法、並びにプログラム |
| US10094931B2 (en) | 2016-02-23 | 2018-10-09 | Samsung Electronics Co., Ltd | Detection of, and processing of signals within a null zone by a global navigation satellite system receiver |
| CN106772459B (zh) * | 2016-12-14 | 2019-05-24 | 中国人民解放军国防科学技术大学 | 一种基于gpu向量运算的多相关器计算方法 |
| EP3671281A1 (de) * | 2018-12-21 | 2020-06-24 | European Space Agency | Verfahren und system zur verarbeitung eines gnss-signals mittels homomorpher verschlüsselung |
| US11630217B2 (en) | 2019-05-21 | 2023-04-18 | Deere & Company | Methods and devices for global navigation satellite system (GNSS) signal acquisition |
| US12379508B2 (en) | 2021-12-30 | 2025-08-05 | Deere & Company | Satellite navigation receiver with aggregate channel digital baseband processing |
| US12153143B2 (en) | 2022-02-18 | 2024-11-26 | Deere & Company | Multi-constellation, multi-frequency GNSS system for interference mitigation |
| US12066551B2 (en) | 2022-02-18 | 2024-08-20 | Deere & Company | Multi-constellation, multi-frequency GNSS system for interference mitigation |
| EP4479778A1 (de) * | 2022-02-18 | 2024-12-25 | Deere & Company | Satellitennavigationsempfänger zur erfassung von gnss-signalen |
Family Cites Families (132)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2016760B (en) | 1978-02-02 | 1982-02-24 | Plessey Co Ltd | Correlators |
| US4445118A (en) | 1981-05-22 | 1984-04-24 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Navigation system and method |
| US4426712A (en) | 1981-05-22 | 1984-01-17 | Massachusetts Institute Of Technology | Correlation system for global position receiver |
| FR2525055A1 (fr) | 1982-04-09 | 1983-10-14 | Trt Telecom Radio Electr | Procede de correction de frequence de la porteuse locale dans le recepteur d'un systeme de transmission de donnees et recepteur utilisant ce procede |
| US4578678A (en) | 1983-11-14 | 1986-03-25 | The United States Of America As Represented By The United States National Aeronautics And Space Administration | High dynamic global positioning system receiver |
| US4660164A (en) | 1983-12-05 | 1987-04-21 | The United States Of America As Represented By The Secretary Of The Navy | Multiplexed digital correlator |
| AU6597086A (en) | 1985-09-03 | 1987-03-24 | Motorola, Inc. | Apparatus for and method of doppler searching in a digital gps receiver |
| US4785463A (en) * | 1985-09-03 | 1988-11-15 | Motorola, Inc. | Digital global positioning system receiver |
| US4811362A (en) | 1987-06-15 | 1989-03-07 | Motorola, Inc. | Low power digital receiver |
| US4894842A (en) * | 1987-10-15 | 1990-01-16 | The Charles Stark Draper Laboratory, Inc. | Precorrelation digital spread spectrum receiver |
| FR2650456A1 (fr) | 1989-07-28 | 1991-02-01 | Trt Telecom Radio Electr | Procede de synchronisation par correlation |
| CH679718A5 (de) | 1989-10-19 | 1992-03-31 | Ascom Zelcom Ag | |
| US5117232A (en) | 1990-06-04 | 1992-05-26 | Raytheon Company | Global system positioning receiver |
| US5185610A (en) | 1990-08-20 | 1993-02-09 | Texas Instruments Incorporated | GPS system and method for deriving pointing or attitude from a single GPS receiver |
| US5390207A (en) | 1990-11-28 | 1995-02-14 | Novatel Communications Ltd. | Pseudorandom noise ranging receiver which compensates for multipath distortion by dynamically adjusting the time delay spacing between early and late correlators |
| US5101416A (en) | 1990-11-28 | 1992-03-31 | Novatel Comunications Ltd. | Multi-channel digital receiver for global positioning system |
| US5148452A (en) | 1990-12-31 | 1992-09-15 | Motorola, Inc. | Global positioning system digital receiver |
| US5199050A (en) | 1991-04-05 | 1993-03-30 | Trw Inc. | Pseudorandom (PN) signal synchronization circuit and related method |
| DE4114058C2 (de) | 1991-04-30 | 2003-11-27 | Sel Alcatel Ag | Mehrkanalempfänger für bandgespreizte Signale |
| US5175557A (en) | 1991-07-18 | 1992-12-29 | Motorola, Inc. | Two channel global positioning system receiver |
| US5153598A (en) | 1991-09-26 | 1992-10-06 | Alves Jr Daniel F | Global Positioning System telecommand link |
| JPH0590904A (ja) | 1991-09-27 | 1993-04-09 | Nec Corp | 制御信号発生回路 |
| US5216961A (en) * | 1991-11-08 | 1993-06-08 | Gray Stephen B | Book index notch cutter |
| US5379224A (en) | 1991-11-29 | 1995-01-03 | Navsys Corporation | GPS tracking system |
| DE4241882A1 (de) | 1991-12-13 | 1993-06-17 | Clarion Co Ltd | |
| US5414729A (en) | 1992-01-24 | 1995-05-09 | Novatel Communications Ltd. | Pseudorandom noise ranging receiver which compensates for multipath distortion by making use of multiple correlator time delay spacing |
| US5323164A (en) | 1992-03-16 | 1994-06-21 | Pioneer Electronic Corporation | Satellite radio wave capturing method for a global positioning system (GPS) receiver |
| US5579338A (en) | 1992-06-29 | 1996-11-26 | Mitsubishi Denki Kabushiki Kaisha | Spread spectrum receiver using partial correlations |
| US5237587A (en) | 1992-11-20 | 1993-08-17 | Magnavox Electronic Systems Company | Pseudo-noise modem and related digital correlation method |
| GB2277853A (en) | 1993-05-07 | 1994-11-09 | Roke Manor Research | Signal compression signals |
| DE4318368C1 (de) | 1993-05-28 | 1994-07-14 | Siemens Ag | Verfahren zum Gewinnen eines einen Ausfall der Synchronisation zwischen einer Pseudozufallssignalfolge eines Senders und einer Referenz-Pseudozufallssignalfolge eines Empfängers anzeigenden Signals |
| US5402347A (en) | 1993-07-22 | 1995-03-28 | Trimble Navigation Limited | Satellite search methods for improving time to first fix in a GPS receiver |
| US5615232A (en) * | 1993-11-24 | 1997-03-25 | Novatel Communications Ltd. | Method of estimating a line of sight signal propagation time using a reduced-multipath correlation function |
| KR970005598B1 (ko) | 1994-06-29 | 1997-04-18 | 삼성전자 주식회사 | 대역확산통신방식의 비동기 디지탈 수신장치 |
| US5748891A (en) | 1994-07-22 | 1998-05-05 | Aether Wire & Location | Spread spectrum localizers |
| AU687228B2 (en) | 1994-07-29 | 1998-02-19 | Qualcomm Incorporated | Method and apparatus for performing code acquisition in a CDMA communications system |
| US5610940A (en) | 1994-09-09 | 1997-03-11 | Omnipoint Corporation | Method and apparatus for noncoherent reception and correlation of a continous phase modulated signal |
| US5594453A (en) | 1994-11-01 | 1997-01-14 | Trimble Navigation, Ltd | GPS receiver having a rapid acquisition of GPS satellite signals |
| US5600670A (en) | 1994-12-21 | 1997-02-04 | Trimble Navigation, Ltd. | Dynamic channel allocation for GPS receivers |
| JP2605648B2 (ja) | 1994-12-22 | 1997-04-30 | 日本電気株式会社 | Ss受信機における逆拡散符号位相検出装置 |
| US5579014A (en) | 1995-01-20 | 1996-11-26 | General Electric Company | Parallel correlator for global positioning system receiver |
| US5694416A (en) | 1995-02-24 | 1997-12-02 | Radix Technologies, Inc. | Direct sequence spread spectrum receiver and antenna array for the simultaneous formation of a beam on a signal source and a null on an interfering jammer |
| US6023489A (en) | 1995-05-24 | 2000-02-08 | Leica Geosystems Inc. | Method and apparatus for code synchronization in a global positioning system receiver |
| US5627855A (en) | 1995-05-25 | 1997-05-06 | Golden Bridge Technology, Inc. | Programmable two-part matched filter for spread spectrum |
| US5600328A (en) | 1995-06-21 | 1997-02-04 | Matsushita Electric Industrial Co., Ltd. | Demodulator circuit in global positioning system receiver |
| US5726659A (en) | 1995-09-21 | 1998-03-10 | Stanford University | Multipath calibration in GPS pseudorange measurements |
| EP0855041B1 (de) | 1995-10-09 | 2002-12-18 | Snaptrack, Inc. | Gps-empfänger und verfahren zur verarbeitung von gps-signalen |
| US6208290B1 (en) * | 1996-03-08 | 2001-03-27 | Snaptrack, Inc. | GPS receiver utilizing a communication link |
| US5884214A (en) | 1996-09-06 | 1999-03-16 | Snaptrack, Inc. | GPS receiver and method for processing GPS signals |
| US6133871A (en) | 1995-10-09 | 2000-10-17 | Snaptrack, Inc. | GPS receiver having power management |
| JPH09148980A (ja) | 1995-11-22 | 1997-06-06 | Sony Corp | パイロット信号検出方法、パイロット信号検出装置及び移動局受信装置 |
| US6133874A (en) | 1996-03-08 | 2000-10-17 | Snaptrack, Inc. | Method and apparatus for acquiring satellite positioning system signals |
| US6393046B1 (en) | 1996-04-25 | 2002-05-21 | Sirf Technology, Inc. | Spread spectrum receiver with multi-bit correlator |
| US6125325A (en) * | 1996-04-25 | 2000-09-26 | Sirf Technology, Inc. | GPS receiver with cross-track hold |
| US5901171A (en) | 1996-03-15 | 1999-05-04 | Sirf Technology, Inc. | Triple multiplexing spread spectrum receiver |
| US5897605A (en) | 1996-03-15 | 1999-04-27 | Sirf Technology, Inc. | Spread spectrum receiver with fast signal reacquisition |
| US6252863B1 (en) | 1996-04-09 | 2001-06-26 | Trimble Navigation Limited | Multipath compensation for pseudorange signals |
| EP0895599B1 (de) | 1996-04-25 | 2002-08-07 | Sirf Technology, Inc. | Spreizspektrumempfänger mit multibitkorrelation |
| US6047017A (en) | 1996-04-25 | 2000-04-04 | Cahn; Charles R. | Spread spectrum receiver with multi-path cancellation |
| US5907578A (en) | 1996-05-20 | 1999-05-25 | Trimble Navigation | Weighted carrier phase multipath reduction |
| US6034635A (en) | 1996-06-06 | 2000-03-07 | Gilhousen; Klein S. | Method for using only two base stations for determining the position of a mobile subscriber in a CDMA cellular telephone system |
| US5859612A (en) | 1996-06-06 | 1999-01-12 | Qualcomm Incorporated | Method for using an antenna with a rotating beam for determining the position of a mobile subscriber in a CDMA cellular telephone system |
| US5828694A (en) | 1996-07-01 | 1998-10-27 | Trimble Navigation Limited | Determination of multipath tracking error |
| US5896304A (en) | 1996-07-12 | 1999-04-20 | General Electric Company | Low power parallel correlator for measuring correlation between digital signal segments |
| US6118808A (en) | 1996-07-12 | 2000-09-12 | General Electric Company | GPS receiver with efficient signal acquisition |
| US6151353A (en) | 1996-07-12 | 2000-11-21 | General Electric Company | Pre-acquisition frequency offset removal in a GPS receiver |
| KR100197352B1 (ko) | 1996-07-31 | 1999-06-15 | 이계철 | 기준 정합여파기를 이용한 병렬포착시스템 |
| US5781543A (en) | 1996-08-29 | 1998-07-14 | Qualcomm Incorporated | Power-efficient acquisition of a CDMA pilot signal |
| US5945948A (en) | 1996-09-03 | 1999-08-31 | Motorola, Inc. | Method and apparatus for location finding in a communication system |
| JPH1079941A (ja) | 1996-09-05 | 1998-03-24 | Fujitsu Ltd | 画像処理装置 |
| US5808582A (en) | 1996-09-13 | 1998-09-15 | Litton Consulting Group, Inc. | Global positioning system receiver with improved multipath signal rejection |
| US5798732A (en) * | 1996-09-19 | 1998-08-25 | Trimble Navigation Limited | GPS receiver having a fast time to first fix |
| US5901183A (en) | 1996-09-25 | 1999-05-04 | Magellan Corporation | Signal correlation technique for a receiver of a spread spectrum signal including a pseudo-random noise code that reduces errors when a multipath signal is present |
| US6256337B1 (en) | 1996-11-21 | 2001-07-03 | Dsp Group, Inc. | Rapid acquisition of PN synchronization in a direct-sequence spread-spectrum digital communications system |
| US6377209B1 (en) | 1997-02-03 | 2002-04-23 | Snaptrack, Inc. | Method and apparatus for satellite positioning system (SPS) time measurement |
| US5812087A (en) | 1997-02-03 | 1998-09-22 | Snaptrack, Inc. | Method and apparatus for satellite positioning system based time measurement |
| US6289041B1 (en) | 1997-02-11 | 2001-09-11 | Snaptrack, Inc. | Fast Acquisition, high sensitivity GPS receiver |
| US5768319A (en) | 1997-02-18 | 1998-06-16 | Motorola, Inc. | GPS data collection in high noise-to-signal ratio environments |
| US5864315A (en) | 1997-04-07 | 1999-01-26 | General Electric Company | Very low power high accuracy time and frequency circuits in GPS based tracking units |
| US5999561A (en) * | 1997-05-20 | 1999-12-07 | Sanconix, Inc. | Direct sequence spread spectrum method, computer-based product, apparatus and system tolerant to frequency reference offset |
| US5920278A (en) | 1997-05-28 | 1999-07-06 | Gregory D. Gibbons | Method and apparatus for identifying, locating, tracking, or communicating with remote objects |
| US5909471A (en) | 1997-08-08 | 1999-06-01 | Arraycomm, Inc. | Method and system for rapid initial control signal detection in a wireless communications system |
| US5952947A (en) | 1997-09-09 | 1999-09-14 | Raytheon Company | Flexible and programmable delta-sigma analog signal converter |
| US6307840B1 (en) | 1997-09-19 | 2001-10-23 | Qualcomm Incorporated | Mobile station assisted timing synchronization in CDMA communication system |
| US5872774A (en) | 1997-09-19 | 1999-02-16 | Qualcomm Incorporated | Mobile station assisted timing synchronization in a CDMA communication system |
| US6005899A (en) | 1997-09-29 | 1999-12-21 | Ericsson, Inc. | Method for efficiently computing sequence correlations |
| US5963264A (en) | 1997-10-30 | 1999-10-05 | Echostar Engineering Corporation | Selecting a digital television program and the control of a non-attached recording device |
| US5931893A (en) | 1997-11-11 | 1999-08-03 | Ericsson, Inc. | Efficient correlation over a sliding window |
| EP0924532B1 (de) | 1997-11-19 | 2006-04-19 | IMEC vzw | Verfahren und Vorrichtung zum Empfang von GPS/GLONASS-Signalen |
| US6252629B1 (en) | 1997-12-26 | 2001-06-26 | Matsushita Electric Industrial Co., Ltd. | Timer-recording controller for controlling a timer-recording apparatus used to record a broadcast audio signal, a broadcast video signal, or a broadcast data signal |
| US5949364A (en) | 1998-01-06 | 1999-09-07 | The United States Of America As Represented By The Administration Of The National Aeronautics And Space Administration | Method and system for producing images of an object |
| US6298083B1 (en) | 1998-03-16 | 2001-10-02 | Trimble Navigation Limited | Power savings technique for a positioning system receiver |
| US6252543B1 (en) | 1998-05-28 | 2001-06-26 | Ericsson Inc. | Location system combining ranging measurements from GPS and cellular networks |
| US6208291B1 (en) | 1998-05-29 | 2001-03-27 | Snaptrack, Inc. | Highly parallel GPS correlator system and method |
| US6236354B1 (en) | 1998-07-02 | 2001-05-22 | Snaptrack, Inc. | Reducing satellite signal interference in a global positioning system receiver |
| US6313786B1 (en) | 1998-07-02 | 2001-11-06 | Snaptrack, Inc. | Method and apparatus for measurement processing of satellite positioning system (SPS) signals |
| US6282248B1 (en) | 1998-07-14 | 2001-08-28 | Agere Systems Guardian Corp. | Variable baud rate demodulator |
| JP3695732B2 (ja) | 1998-09-02 | 2005-09-14 | 富士通株式会社 | Cdma受信装置のサーチ装置 |
| US6327473B1 (en) | 1998-09-08 | 2001-12-04 | Qualcomm Incorporated | Method and apparatus for increasing the sensitivity of a global positioning satellite receiver |
| US6211820B1 (en) | 1998-09-09 | 2001-04-03 | Qualcomm Incorporated | Call maintainance during position location |
| US6208292B1 (en) | 1998-09-09 | 2001-03-27 | Qualcomm Incorporated | Position location with low tolerance oscillator |
| US6181911B1 (en) | 1998-09-09 | 2001-01-30 | Qualcomm Incorporated | Simplified receiver with rotator for performing position location |
| US6324227B1 (en) | 1998-09-09 | 2001-11-27 | Qualcomm Incorporated | Receiver for performing position location with efficient rotator |
| US6693953B2 (en) | 1998-09-30 | 2004-02-17 | Skyworks Solutions, Inc. | Adaptive wireless communication receiver |
| US6441780B1 (en) * | 1998-11-11 | 2002-08-27 | Samsung Electronics Co., Ltd. | Receiver for pseudo-noise signals from a satellite radio-navigation systems |
| US6157891A (en) | 1998-11-16 | 2000-12-05 | Lin; Ching-Fang | Positioning and ground proximity warning method and system thereof for vehicle |
| US6121923A (en) | 1999-02-19 | 2000-09-19 | Motorola, Inc. | Fixed site and satellite data-aided GPS signal acquisition method and system |
| US6370208B1 (en) | 1999-02-26 | 2002-04-09 | Industrial Technical Research Institute | Correlator for CDMA applications |
| JP3600529B2 (ja) | 1999-03-01 | 2004-12-15 | 富士通株式会社 | Cdma用受信機 |
| US6304216B1 (en) | 1999-03-30 | 2001-10-16 | Conexant Systems, Inc. | Signal detector employing correlation analysis of non-uniform and disjoint sample segments |
| US6363108B1 (en) * | 1999-03-31 | 2002-03-26 | Qualcomm Inc. | Programmable matched filter searcher |
| AU4486700A (en) | 1999-04-23 | 2000-11-10 | Global Locate, Inc. | Apparatus for computing gps correlations in parallel |
| US6606346B2 (en) | 2001-05-18 | 2003-08-12 | Global Locate, Inc. | Method and apparatus for computing signal correlation |
| JP2000310673A (ja) | 1999-04-26 | 2000-11-07 | Matsushita Electric Ind Co Ltd | Gps受信機 |
| AU5601800A (en) | 1999-08-09 | 2001-03-05 | Motorola, Inc. | Adaptive delay lock loop tracking |
| US6292132B1 (en) | 1999-08-13 | 2001-09-18 | Daimlerchrysler Ag | System and method for improved accuracy in locating and maintaining positions using GPS |
| US6278403B1 (en) | 1999-09-17 | 2001-08-21 | Sirf Technology, Inc. | Autonomous hardwired tracking loop coprocessor for GPS and WAAS receiver |
| US6421372B1 (en) | 1999-11-10 | 2002-07-16 | Itt Manufacturing Enterprises, Inc. | Sequential-acquisition, multi-band, multi-channel, matched filter |
| US6868110B2 (en) | 1999-12-01 | 2005-03-15 | The Board Of Trustees Of The Leland Stanford Junior University | Multipath and tracking error reduction method for spread-spectrum receivers |
| US6658048B1 (en) | 2000-04-07 | 2003-12-02 | Nokia Mobile Phones, Ltd. | Global positioning system code phase detector with multipath compensation and method for reducing multipath components associated with a received signal |
| US6804290B1 (en) | 2000-05-26 | 2004-10-12 | Motorola, Inc. | Method of acquiring signal code phases and geographic positioning receiver |
| JP3673700B2 (ja) | 2000-06-27 | 2005-07-20 | 株式会社日立製作所 | スペクトル拡散信号を用いた測距及び位置測定方法、その方法を行う装置 |
| US6934317B1 (en) | 2000-10-11 | 2005-08-23 | Ericsson Inc. | Systems and methods for communicating spread spectrum signals using variable signal constellations |
| US6560534B2 (en) | 2001-06-06 | 2003-05-06 | Global Locate, Inc. | Method and apparatus for distributing satellite tracking information |
| US6542820B2 (en) | 2001-06-06 | 2003-04-01 | Global Locate, Inc. | Method and apparatus for generating and distributing satellite tracking information |
| US6427122B1 (en) | 2000-12-23 | 2002-07-30 | American Gnc Corporation | Positioning and data integrating method and system thereof |
| US6819707B2 (en) | 2001-05-18 | 2004-11-16 | Global Locate, Inc. | Method and apparatus for performing signal correlation using historical correlation data |
| US7567636B2 (en) * | 2001-05-18 | 2009-07-28 | Global Locate, Inc. | Method and apparatus for performing signal correlation using historical correlation data |
| US6888849B2 (en) | 2001-06-15 | 2005-05-03 | Lucent Technologies Inc. | Method for evaluating capacity utilization of a terminus in a communication system |
| US6433726B1 (en) | 2001-06-22 | 2002-08-13 | Koninklijke Philips Electronics N.V. | Fractional decimation filter using oversampled data |
| US6651000B2 (en) | 2001-07-25 | 2003-11-18 | Global Locate, Inc. | Method and apparatus for generating and distributing satellite tracking information in a compact format |
| US6775319B2 (en) | 2001-08-16 | 2004-08-10 | Motorola, Inc. | Spread spectrum receiver architectures and methods therefor |
-
2003
- 2003-10-22 US US10/690,973 patent/US7567636B2/en not_active Expired - Fee Related
-
2004
- 2004-10-21 KR KR1020067009798A patent/KR100964935B1/ko not_active Expired - Fee Related
- 2004-10-21 EP EP04817333A patent/EP1676144B1/de not_active Expired - Lifetime
- 2004-10-21 JP JP2006536804A patent/JP2007510891A/ja not_active Withdrawn
- 2004-10-21 WO PCT/US2004/034954 patent/WO2005040845A1/en not_active Ceased
- 2004-10-21 DE DE602004013356T patent/DE602004013356T2/de not_active Expired - Lifetime
- 2004-10-21 AT AT04817333T patent/ATE393401T1/de not_active IP Right Cessation
-
2009
- 2009-06-25 US US12/491,814 patent/US8005174B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007510891A (ja) | 2007-04-26 |
| KR100964935B1 (ko) | 2010-06-21 |
| EP1676144A1 (de) | 2006-07-05 |
| DE602004013356D1 (de) | 2008-06-05 |
| DE602004013356T2 (de) | 2009-05-07 |
| US20040141549A1 (en) | 2004-07-22 |
| WO2005040845A1 (en) | 2005-05-06 |
| US20090262789A1 (en) | 2009-10-22 |
| EP1676144B1 (de) | 2008-04-23 |
| US7567636B2 (en) | 2009-07-28 |
| KR20060094098A (ko) | 2006-08-28 |
| US8005174B2 (en) | 2011-08-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ATE393401T1 (de) | Verfahren und vorrichtung zur durchführung einer signalkorrelation unter verwendung vorgeschichtlicher korrelationsdaten | |
| ATE381716T1 (de) | Verfahren und vorrichtung zur verwendung von satelliten-statusinformation bei satellitenortungssystemen | |
| ATE484758T1 (de) | Verfahren und vorrichtung zur zeitfreien verarbeitung von gps-signalen | |
| ATE332555T1 (de) | Verfahren und system zur überwachung des orts einer vorrichtung | |
| DE60239406D1 (de) | Verfahren und vorrichtung zur positionsbestimmung unter verwendung einer groben positionsabschätzung | |
| ATE407370T1 (de) | Verfahren und vorrichtung zur seismischen überwachung eines unterirdischen gebiets unter gleichzeitiger verwendung von mehreren vibroseismischen quellen | |
| DE602004022900D1 (de) | Verfahren und Vorrichtung zur optischen Zielverfolgung unter Verwendung von einer Triangulationstechnik | |
| DE60314877D1 (de) | Verfahren und vorrichtung zur bereitstellung elektronischer post an ein mobiles gerät | |
| ATE489642T1 (de) | Verfahren und vorrichtung zur verarbeitung von satellitensignalen ohne tageszeitinformationen | |
| DE59905558D1 (de) | Verfahren zur überwachung von objekten bzw. eines objektraumes | |
| EP1315095A3 (de) | System und Verfahren zur Verbesserung des FFT Signal-Rauschverhältnisses durch Identifizierung ohne Bitzahlwachstum Stufen | |
| ATE491163T1 (de) | Systeme und verfahren zur kohlenwasserstoff- detektion durch verwendung einer wavelet- energieabsorptionsanalyse | |
| DE60221149D1 (de) | System und verfahren zur identifikation des vorhandenseins von defekten in einer vibrierenden maschine | |
| ATE532083T1 (de) | Verfahren und vorrichtung zur genauen bestimmung der höhenkoordinaten in einem satelliten- /laserpositionierungssystem | |
| ATE502311T1 (de) | System und verfahren zur bestimmung der position einer schallquelle | |
| ATE542153T1 (de) | Verfahren und vorrichtung zum verarbeiten von satellitenpositionierungssignalen zum erhalten von zeitinformationen | |
| ATE456061T1 (de) | Verfahren und vorrichtungen zur verarbeitung von gps-signalen mit einem angepassten filter | |
| ATE315289T1 (de) | Übertragungs-verfahren, -einrichtung und - rechnerprogrammprodukte zur kanalcharakterisierung | |
| DE602004028747D1 (de) | Verfahren zum zählen von objekten in einer überwachten umgebung und vorrichtung dafür | |
| ATE266232T1 (de) | Verfahren und vorrichtung zur automatischen wahrnehmung | |
| DE59906278D1 (de) | Vorrichtung und verfahren zur sitzüberwachung mittels einer optoelektronischen triangulationstechnik | |
| ATE336030T1 (de) | Verfahren und vorrichtung zur seriellen datenübertragung zwischen einem positionsmesssystem und einer verarbeitungseinheit | |
| DE60327916D1 (de) | Verfahren zur Herstellung einer elektro-optischen Vorrichtung | |
| ATE428122T1 (de) | Verfahren und vorrichtung zur navigation | |
| ATE366011T1 (de) | Verfahren zur überwachung von computer systemen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |