ATE403884T1 - Signaldetektor sowie verfahren mit kohärentem akkumulationssystem zur korrelation von unterschiedlichen und disjunkten segmenten von abtastwerten - Google Patents

Signaldetektor sowie verfahren mit kohärentem akkumulationssystem zur korrelation von unterschiedlichen und disjunkten segmenten von abtastwerten

Info

Publication number
ATE403884T1
ATE403884T1 AT01919707T AT01919707T ATE403884T1 AT E403884 T1 ATE403884 T1 AT E403884T1 AT 01919707 T AT01919707 T AT 01919707T AT 01919707 T AT01919707 T AT 01919707T AT E403884 T1 ATE403884 T1 AT E403884T1
Authority
AT
Austria
Prior art keywords
segments
signal detector
different
samples
coherent
Prior art date
Application number
AT01919707T
Other languages
English (en)
Inventor
Steven Gronemeyer
Original Assignee
Sirf Tech Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24199621&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE403884(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sirf Tech Inc filed Critical Sirf Tech Inc
Application granted granted Critical
Publication of ATE403884T1 publication Critical patent/ATE403884T1/de

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13Receivers
    • G01S19/23Testing, monitoring, correcting or calibrating of receiver elements
    • G01S19/235Calibration of receiver components
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13Receivers
    • G01S19/24Acquisition or tracking or demodulation of signals transmitted by the system
    • G01S19/29Acquisition or tracking or demodulation of signals transmitted by the system carrier including Doppler, related
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13Receivers
    • G01S19/24Acquisition or tracking or demodulation of signals transmitted by the system
    • G01S19/30Acquisition or tracking or demodulation of signals transmitted by the system code related
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13Receivers
    • G01S19/24Acquisition or tracking or demodulation of signals transmitted by the system
    • G01S19/25Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS
    • G01S19/254Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS relating to Doppler shift of satellite signals
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13Receivers
    • G01S19/24Acquisition or tracking or demodulation of signals transmitted by the system
    • G01S19/25Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS
    • G01S19/256Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS relating to timing, e.g. time of week, code phase, timing offset
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/0014Carrier regulation
    • H04L2027/0024Carrier regulation at the receiver end
    • H04L2027/0026Correction of carrier offset
    • H04L2027/0034Correction of carrier offset using hypothesis testing

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Radar Systems Or Details Thereof (AREA)
AT01919707T 2000-04-18 2001-04-17 Signaldetektor sowie verfahren mit kohärentem akkumulationssystem zur korrelation von unterschiedlichen und disjunkten segmenten von abtastwerten ATE403884T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/551,047 US6850557B1 (en) 2000-04-18 2000-04-18 Signal detector and method employing a coherent accumulation system to correlate non-uniform and disjoint sample segments

Publications (1)

Publication Number Publication Date
ATE403884T1 true ATE403884T1 (de) 2008-08-15

Family

ID=24199621

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01919707T ATE403884T1 (de) 2000-04-18 2001-04-17 Signaldetektor sowie verfahren mit kohärentem akkumulationssystem zur korrelation von unterschiedlichen und disjunkten segmenten von abtastwerten

Country Status (6)

Country Link
US (1) US6850557B1 (de)
EP (1) EP1301803B1 (de)
JP (1) JP3964681B2 (de)
AT (1) ATE403884T1 (de)
DE (1) DE60135226D1 (de)
WO (1) WO2001079877A2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114371460A (zh) * 2022-01-24 2022-04-19 电子科技大学 一种机载雷达海面运动目标能量积累与海杂波抑制方法

Families Citing this family (79)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8255149B2 (en) 1999-07-12 2012-08-28 Skybitz, Inc. System and method for dual-mode location determination
US20040143392A1 (en) 1999-07-12 2004-07-22 Skybitz, Inc. System and method for fast acquisition reporting using communication satellite range measurement
US6714158B1 (en) * 2000-04-18 2004-03-30 Sirf Technology, Inc. Method and system for data detection in a global positioning system satellite receiver
WO2002063331A1 (en) * 2001-02-06 2002-08-15 Koninklijke Philips Electronics N.V. A method of despreading gps signals
US7925210B2 (en) * 2001-05-21 2011-04-12 Sirf Technology, Inc. Synchronizing a radio network with end user radio terminals
KR20040101367A (ko) 2002-03-28 2004-12-02 노키아 코포레이션 수신 비콘 신호와 재생 신호 사이의 코릴레이션을결정하는 방법
US7596190B2 (en) * 2002-04-01 2009-09-29 Qualcomm Incorporated System, method, and apparatus for correction of code doppler shift
US7132980B2 (en) * 2002-11-01 2006-11-07 Sirf Technology, Inc. Multi-function device with positioning system and shared processor
US7822105B2 (en) * 2003-09-02 2010-10-26 Sirf Technology, Inc. Cross-correlation removal of carrier wave jamming signals
US7593490B2 (en) 2003-09-12 2009-09-22 Advantech Advanced Microwave Technologies, Inc. Joint synchronizer and decoder
US7839916B1 (en) * 2003-10-08 2010-11-23 L-3 Communications Corporation Systems and methods for communication in a global positioning system (GPS) device
KR100617786B1 (ko) * 2004-07-13 2006-08-28 삼성전자주식회사 도플러 변화를 보상하는 고감도 전세계위치확인 시스템수신기 및 방법
US8254512B2 (en) * 2004-11-17 2012-08-28 Qualcomm Incorporated Method and apparatus for increasing coherent integration length while receiving a positioning signal
DE102005026093B4 (de) * 2005-06-07 2007-07-05 Atmel Germany Gmbh Detektionseinheit
WO2007020693A1 (ja) * 2005-08-18 2007-02-22 Mitsubishi Denki Kabushiki Kaisha Gps測位方法及びgps測位装置
US7498981B2 (en) * 2005-10-07 2009-03-03 The Charles Stark Draper Laboratory, Inc. Method and apparatus for real-time digital processing of satellite positional signals for fast acquisition and low SNR tracking
EP1801991A3 (de) * 2005-12-21 2008-08-20 Nemerix SA Optimale Ressourcenverwendung für Signalprozessoren
US7693211B2 (en) * 2006-04-20 2010-04-06 Sirf Technology Holdings, Inc. Fast fourier transform based phase locked loop for navigational receivers
EP2012137A4 (de) 2006-04-27 2010-03-24 Seiko Epson Corp Globales positionsbestimmungsgerät, steuerverfahren für globale positionsbestimmung, globales positionsbestimmungsprogramm und aufzeichnungsmedium
EP2022177A4 (de) 2006-05-24 2010-09-08 Nokia Corp Verfahren in einem cdma-empfänger mit hardware und software bei akquisition, tracking und hosting
US8553808B2 (en) 2006-12-13 2013-10-08 Motorola Mobility Llc Method and apparatus for detecting the presence of a signal in a frequency band using non-uniform sampling
US7602336B2 (en) * 2007-06-11 2009-10-13 The Aerospace Corporation Coherently combining antennas
US7743177B2 (en) * 2007-06-29 2010-06-22 Sirf Technology Holdings, Inc. High sensitivity global navigation satellite system (GNSS) receiver platform having DMA controller for transferring between internal and external memory
JP4766067B2 (ja) * 2008-03-28 2011-09-07 ソニー株式会社 情報処理装置、位置推定方法、プログラム、および人工衛星システム
JP2008261870A (ja) * 2008-05-19 2008-10-30 Seiko Epson Corp 測位装置、測位装置の制御方法、その制御プログラム及び記録媒体
JP2008233103A (ja) * 2008-05-19 2008-10-02 Seiko Epson Corp 測位装置、測位装置の制御方法、その制御プログラム及び記録媒体
JP2008233102A (ja) * 2008-05-19 2008-10-02 Seiko Epson Corp 測位装置、測位装置の制御方法、その制御プログラム及び記録媒体
ATE482408T1 (de) * 2008-05-26 2010-10-15 Ublox Ag Verfahren zur bearbeitung eines von einem analogen eingangssignal eines gnss-empfängers abgeleiteten digitalen signals, basisbandschaltung eines gnss-empfängers zur durchführung des verfahrens und gnss-empfänger
US8442095B2 (en) * 2008-06-14 2013-05-14 Qualcomm Incorporated Multiple correlation processing in code space search
US7924224B2 (en) * 2008-08-15 2011-04-12 Trueposition, Inc. Variable coherence integration for the location of weak signals
FR2936669B1 (fr) * 2008-09-26 2011-11-25 Thales Sa Procede pour optimiser une acquisition d'un signal a spectre etale provenant d'un satellite par un recepteur mobile
FR2942576B1 (fr) * 2009-02-23 2011-02-18 Commissariat Energie Atomique Procede d'estimation d'un decalage de frequence porteuse dans un recepteur de signaux de telecommunication, notamment un dispositif mobile.
US20110050496A1 (en) * 2009-09-02 2011-03-03 Qualcomm Incorporated Energy Domain Based Peak Reconstruction Methods And Apparatuses
JP5652049B2 (ja) * 2010-08-16 2015-01-14 セイコーエプソン株式会社 位置算出方法及び受信装置
US8559413B2 (en) 2010-09-30 2013-10-15 Qualcomm Incorporated System and method for detecting packet synchronization
CN103718059B (zh) * 2011-08-02 2016-05-18 内克斯特纳夫有限公司 广域定位系统(waps)中的小区组织和传输方案
US8922430B2 (en) 2011-12-22 2014-12-30 Trueposition, Inc. Optimization of variable coherence integration for the location of weak signals
US10861112B2 (en) 2012-07-31 2020-12-08 Causam Energy, Inc. Systems and methods for advanced energy settlements, network-based messaging, and applications supporting the same on a blockchain platform
US8983669B2 (en) 2012-07-31 2015-03-17 Causam Energy, Inc. System, method, and data packets for messaging for electric power grid elements over a secure internet protocol network
US8849715B2 (en) 2012-10-24 2014-09-30 Causam Energy, Inc. System, method, and apparatus for settlement for participation in an electric power grid
US9513648B2 (en) 2012-07-31 2016-12-06 Causam Energy, Inc. System, method, and apparatus for electric power grid and network management of grid elements
US10475138B2 (en) 2015-09-23 2019-11-12 Causam Energy, Inc. Systems and methods for advanced energy network
US9307334B2 (en) * 2013-01-31 2016-04-05 Google Inc. Method for calculating audio latency in real-time audio processing system
US10271233B2 (en) 2013-03-15 2019-04-23 DGS Global Systems, Inc. Systems, methods, and devices for automatic signal detection with temporal feature extraction within a spectrum
US8798548B1 (en) 2013-03-15 2014-08-05 DGS Global Systems, Inc. Systems, methods, and devices having databases for electronic spectrum management
US10257728B2 (en) 2013-03-15 2019-04-09 DGS Global Systems, Inc. Systems, methods, and devices for electronic spectrum management
US10122479B2 (en) 2017-01-23 2018-11-06 DGS Global Systems, Inc. Systems, methods, and devices for automatic signal detection with temporal feature extraction within a spectrum
US8787836B1 (en) 2013-03-15 2014-07-22 DGS Global Systems, Inc. Systems, methods, and devices having databases and automated reports for electronic spectrum management
US8977212B2 (en) 2013-03-15 2015-03-10 DGS Global Systems, Inc. Systems, methods, and devices for electronic spectrum management with remote access to data in a virtual computing network
US10219163B2 (en) 2013-03-15 2019-02-26 DGS Global Systems, Inc. Systems, methods, and devices for electronic spectrum management
US8750156B1 (en) 2013-03-15 2014-06-10 DGS Global Systems, Inc. Systems, methods, and devices for electronic spectrum management for identifying open space
US8805292B1 (en) 2013-03-15 2014-08-12 DGS Global Systems, Inc. Systems, methods, and devices for electronic spectrum management for identifying signal-emitting devices
US10257729B2 (en) 2013-03-15 2019-04-09 DGS Global Systems, Inc. Systems, methods, and devices having databases for electronic spectrum management
US10244504B2 (en) 2013-03-15 2019-03-26 DGS Global Systems, Inc. Systems, methods, and devices for geolocation with deployable large scale arrays
US10257727B2 (en) 2013-03-15 2019-04-09 DGS Global Systems, Inc. Systems methods, and devices having databases and automated reports for electronic spectrum management
US10237770B2 (en) 2013-03-15 2019-03-19 DGS Global Systems, Inc. Systems, methods, and devices having databases and automated reports for electronic spectrum management
US9537586B2 (en) 2013-03-15 2017-01-03 DGS Global Systems, Inc. Systems, methods, and devices for electronic spectrum management with remote access to data in a virtual computing network
US9288683B2 (en) 2013-03-15 2016-03-15 DGS Global Systems, Inc. Systems, methods, and devices for electronic spectrum management
US11646918B2 (en) 2013-03-15 2023-05-09 Digital Global Systems, Inc. Systems, methods, and devices for electronic spectrum management for identifying open space
US10299149B2 (en) 2013-03-15 2019-05-21 DGS Global Systems, Inc. Systems, methods, and devices for electronic spectrum management
US10231206B2 (en) 2013-03-15 2019-03-12 DGS Global Systems, Inc. Systems, methods, and devices for electronic spectrum management for identifying signal-emitting devices
US9612338B2 (en) * 2013-07-12 2017-04-04 Texas Instruments Incorporated Method to improve satellite signal detection
CN104090282B (zh) * 2014-06-18 2016-10-05 北京邮电大学 一种捕获卫星信号的多普勒频移和伪码相位的方法及装置
US10139473B2 (en) * 2015-02-02 2018-11-27 Panasonic Intellectual Property Management Co., Ltd. Radar apparatus including transmitting antenna and receiving antenna
GB2566748B (en) * 2017-09-26 2022-08-17 Focal Point Positioning Ltd A method and system for calibrating a system parameter
US11808865B2 (en) * 2016-03-24 2023-11-07 Focal Point Positioning Limited Method and system for calibrating a system parameter
US10222480B2 (en) * 2016-09-30 2019-03-05 Intel Corporation Methods and devices for compensating misadjustment of a GNSS device
US10529241B2 (en) 2017-01-23 2020-01-07 Digital Global Systems, Inc. Unmanned vehicle recognition and threat management
US10498951B2 (en) 2017-01-23 2019-12-03 Digital Global Systems, Inc. Systems, methods, and devices for unmanned vehicle detection
US10700794B2 (en) 2017-01-23 2020-06-30 Digital Global Systems, Inc. Systems, methods, and devices for automatic signal detection based on power distribution by frequency over time within an electromagnetic spectrum
US10459020B2 (en) 2017-01-23 2019-10-29 DGS Global Systems, Inc. Systems, methods, and devices for automatic signal detection based on power distribution by frequency over time within a spectrum
US10594406B2 (en) * 2018-03-09 2020-03-17 Nokia Solutions And Networks Oy Pilot-aided digital signal processing for reception of coherent optical communication
WO2020012298A1 (en) * 2018-07-09 2020-01-16 University Of Iowa Research Foundation Pattern and delay recovery with higher-order spectra
US10943461B2 (en) 2018-08-24 2021-03-09 Digital Global Systems, Inc. Systems, methods, and devices for automatic signal detection based on power distribution by frequency over time
CN110703202B (zh) * 2019-10-22 2022-06-21 哈尔滨工程大学 基于多声学波浪滑翔机和水面无人艇的水下脉冲声定位系统
CN110907958B (zh) * 2019-10-23 2022-04-01 深圳华大北斗科技股份有限公司 信号捕获方法、装置、计算机设备和存储介质
US11265076B2 (en) * 2020-04-10 2022-03-01 Totum Labs, Inc. System and method for forward error correcting across multiple satellites
US10951357B1 (en) * 2020-04-10 2021-03-16 Totum Labs, Inc. System and method for detecting a satellite
CN114545459B (zh) * 2021-12-22 2024-04-05 中国西安卫星测控中心 基于统一逻辑表征的低轨卫星例行测控任务预处理方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5592173A (en) * 1994-07-18 1997-01-07 Trimble Navigation, Ltd GPS receiver having a low power standby mode
US5884214A (en) * 1996-09-06 1999-03-16 Snaptrack, Inc. GPS receiver and method for processing GPS signals
US5841396A (en) * 1996-03-08 1998-11-24 Snaptrack, Inc. GPS receiver utilizing a communication link
US5831574A (en) * 1996-03-08 1998-11-03 Snaptrack, Inc. Method and apparatus for determining the location of an object which may have an obstructed view of the sky
US5874914A (en) * 1995-10-09 1999-02-23 Snaptrack, Inc. GPS receiver utilizing a communication link
AU7396596A (en) * 1995-10-09 1997-04-30 Precision Tracking, Inc. Method and apparatus for determining the location of an object which may have an obstructed view of the sky
US6002363A (en) * 1996-03-08 1999-12-14 Snaptrack, Inc. Combined GPS positioning system and communications system utilizing shared circuitry
US5825327A (en) * 1996-03-08 1998-10-20 Snaptrack, Inc. GPS receivers and garments containing GPS receivers and methods for using these GPS receivers
US5945944A (en) * 1996-03-08 1999-08-31 Snaptrack, Inc. Method and apparatus for determining time for GPS receivers
US6118808A (en) * 1996-07-12 2000-09-12 General Electric Company GPS receiver with efficient signal acquisition
US5852630A (en) * 1997-07-17 1998-12-22 Globespan Semiconductor, Inc. Method and apparatus for a RADSL transceiver warm start activation procedure with precoding
US5999124A (en) * 1998-04-22 1999-12-07 Snaptrack, Inc, Satellite positioning system augmentation with wireless communication signals
US6236359B1 (en) * 1998-05-14 2001-05-22 Nortel Networks Limited Cellular terminal location using GPS signals in the cellular band
US6044105A (en) * 1998-09-01 2000-03-28 Conexant Systems, Inc. Doppler corrected spread spectrum matched filter
US6327473B1 (en) * 1998-09-08 2001-12-04 Qualcomm Incorporated Method and apparatus for increasing the sensitivity of a global positioning satellite receiver
US6181911B1 (en) * 1998-09-09 2001-01-30 Qualcomm Incorporated Simplified receiver with rotator for performing position location

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114371460A (zh) * 2022-01-24 2022-04-19 电子科技大学 一种机载雷达海面运动目标能量积累与海杂波抑制方法

Also Published As

Publication number Publication date
WO2001079877A3 (en) 2002-05-16
DE60135226D1 (de) 2008-09-18
EP1301803B1 (de) 2008-08-06
EP1301803A2 (de) 2003-04-16
US6850557B1 (en) 2005-02-01
JP3964681B2 (ja) 2007-08-22
WO2001079877A2 (en) 2001-10-25
JP2004501352A (ja) 2004-01-15

Similar Documents

Publication Publication Date Title
ATE403884T1 (de) Signaldetektor sowie verfahren mit kohärentem akkumulationssystem zur korrelation von unterschiedlichen und disjunkten segmenten von abtastwerten
KR100676780B1 (ko) 약한 확산 스팩트럼 신호의 처리를 개선하기 위한 강한 신호의 소거
US7522100B2 (en) Method and device for acquiring weak global navigation satellite system (GNSS) signals
FI20010236A (fi) Menetelmä ja järjestelmä satelliittipaikannusjärjestelmän signaalien keräämiseksi
KR100754559B1 (ko) Gps 시스템의 신호 처리 방법 및 서버와 무선 터미널
US6990140B2 (en) Signal receiver using coherent integration in interleaved time periods for signal acquisition at low signal strength
WO2000010030A8 (en) Fast acquisition, high sensitivity gps receiver
DE69729736D1 (de) Signalkorrelationsverfahren für spreizspektrumempfänger zur reduzierung von mehrwegfehlern
ATE418079T1 (de) Signaldetektor mit korrelationsanalyse von nichteinheitlichen und getrennten abtastsegmenten
MY129436A (en) Method for efficient sampling in a correlator
DE60036010D1 (de) System zur signalerfassung für einen spreizspektrumempfänger
JP2004525362A (ja) Gps信号の逆拡散方法
JP2008510160A (ja) Gps受信器および関連する方法並びに装置
EP1589349A2 (de) Unterstützung der Feststellung einer Korrelation
US6898234B1 (en) Signal receiver for integrating and combining integrations in alternating time segments for signal acquisition at low signal strength
CN1375707A (zh) 确定信息单元边界的方法、系统和电子设备
Pany et al. On the state-of-the-art of real-time GNSS signal acquisition—A comparison of time and frequency domain methods
US8238411B2 (en) Acquisition of a code modulated signal
EP1152546A3 (de) Erfassungssystem für Speizspektrumsignale
Soloviev et al. Decoding navigation data messages from weak GPS signals
DE60108221D1 (de) Verfahren zur Verringerung der Mehrwegstörungen in einem Navigationsempfänger
Ta et al. A novel signal acquisition method for GPS dual-frequency L1 C/A and L2C receivers
Deshpande et al. Analysis of the effects of GPS receiver acquisition parameters
EP1426782A3 (de) Parallelkorrelator für einen Spreizband-Empfänger
KR101088536B1 (ko) 상관 방법, 신호 프로세서 및 직접 시퀀스 확산 스펙트럼신호 수신기

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties