SE9700909D0 - Synkroniseringsackvisitionsmetod och anordning för korrelationsdemodulering - Google Patents

Synkroniseringsackvisitionsmetod och anordning för korrelationsdemodulering

Info

Publication number
SE9700909D0
SE9700909D0 SE9700909A SE9700909A SE9700909D0 SE 9700909 D0 SE9700909 D0 SE 9700909D0 SE 9700909 A SE9700909 A SE 9700909A SE 9700909 A SE9700909 A SE 9700909A SE 9700909 D0 SE9700909 D0 SE 9700909D0
Authority
SE
Sweden
Prior art keywords
chip
candidates
synchronism
phases
correlation values
Prior art date
Application number
SE9700909A
Other languages
English (en)
Other versions
SE9700909L (sv
Inventor
Takayuki Kondo
Original Assignee
Nec Corp
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
Application filed by Nec Corp filed Critical Nec Corp
Publication of SE9700909D0 publication Critical patent/SE9700909D0/sv
Publication of SE9700909L publication Critical patent/SE9700909L/sv

Links

Classifications

    • 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
    • H04B1/70775—Multi-dwell schemes, i.e. multiple accumulation times
    • 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
    • H04B1/70757—Synchronisation aspects with code phase acquisition with increased resolution, i.e. higher than half a chip

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
SE9700909A 1996-03-22 1997-03-13 Synkroniseringsackvisitionsmetod och anordning för korrelationsdemodulering SE9700909L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6639296A JP2780697B2 (ja) 1996-03-22 1996-03-22 相関復調における同期捕捉方法及び装置

Publications (2)

Publication Number Publication Date
SE9700909D0 true SE9700909D0 (sv) 1997-03-13
SE9700909L SE9700909L (sv) 1997-09-23

Family

ID=13314510

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9700909A SE9700909L (sv) 1996-03-22 1997-03-13 Synkroniseringsackvisitionsmetod och anordning för korrelationsdemodulering

Country Status (5)

Country Link
US (1) US5995537A (sv)
JP (1) JP2780697B2 (sv)
AU (1) AU686965B2 (sv)
GB (1) GB2311450B (sv)
SE (1) SE9700909L (sv)

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US6531982B1 (en) 1997-09-30 2003-03-11 Sirf Technology, Inc. Field unit for use in a GPS system
US6144691A (en) * 1997-09-30 2000-11-07 Nokia Mobile Phones Limited Method and apparatus for synchronizing to a direct sequence spread spectrum signal
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US6348744B1 (en) 1998-04-14 2002-02-19 Conexant Systems, Inc. Integrated power management module
US6324159B1 (en) * 1998-05-06 2001-11-27 Sirius Communications N.V. Method and apparatus for code division multiple access communication with increased capacity through self-noise reduction
DE19832850A1 (de) * 1998-07-21 2000-02-10 Siemens Ag Akquisitionsverfahren und Vorrichtung zur Durchführung des Verfahrens
US7545854B1 (en) 1998-09-01 2009-06-09 Sirf Technology, Inc. Doppler corrected spread spectrum matched filter
US7711038B1 (en) 1998-09-01 2010-05-04 Sirf Technology, Inc. System and method for despreading in a spread spectrum matched filter
US6944149B1 (en) * 1998-09-24 2005-09-13 Samsung Electronics Co., Ltd. Apparatus and method or searching for PN sequence phase in multi-carrier CDMA mobile communication system
JP3031353B1 (ja) 1998-09-29 2000-04-10 日本電気株式会社 受信回路及びこれを有する移動端末、並びに受信方法
US6693953B2 (en) 1998-09-30 2004-02-17 Skyworks Solutions, Inc. Adaptive wireless communication receiver
US6606349B1 (en) 1999-02-04 2003-08-12 Sirf Technology, Inc. Spread spectrum receiver performance improvement
US6448925B1 (en) 1999-02-04 2002-09-10 Conexant Systems, Inc. Jamming detection and blanking for GPS receivers
US6304216B1 (en) 1999-03-30 2001-10-16 Conexant Systems, Inc. Signal detector employing correlation analysis of non-uniform and disjoint sample segments
US6577271B1 (en) 1999-03-30 2003-06-10 Sirf Technology, Inc Signal detector employing coherent integration
WO2000069086A1 (en) * 1999-05-10 2000-11-16 Sirius Communications N.V. Method and apparatus for high-speed software reconfigurable code division multiple access communication
US7372888B1 (en) 1999-05-10 2008-05-13 Agilent Technologies Inc. Method and apparatus for software reconfigurable communication transmission/reception and navigation signal reception
US6351486B1 (en) 1999-05-25 2002-02-26 Conexant Systems, Inc. Accelerated selection of a base station in a wireless communication system
US7327779B1 (en) 1999-07-23 2008-02-05 Agilent Technologies, Inc. Method and apparatus for high-speed software reconfigurable code division multiple access communication
JP2001061176A (ja) * 1999-08-20 2001-03-06 Pioneer Electronic Corp 通信装置
US6788655B1 (en) 2000-04-18 2004-09-07 Sirf Technology, Inc. Personal communications device with ratio counter
US6714158B1 (en) 2000-04-18 2004-03-30 Sirf Technology, Inc. Method and system for data detection in a global positioning system satellite receiver
US7885314B1 (en) 2000-05-02 2011-02-08 Kenneth Scott Walley Cancellation system and method for a wireless positioning system
US6778136B2 (en) 2001-12-13 2004-08-17 Sirf Technology, Inc. Fast acquisition of GPS signal
CN1173486C (zh) * 2000-07-03 2004-10-27 三菱电机株式会社 时标校正装置及时标校正方法
KR100342496B1 (ko) * 2000-09-08 2002-06-28 윤종용 고속 서처의 직교확산부호 가설 변경 장치 및 방법
US6934732B2 (en) * 2001-02-06 2005-08-23 3G. Com, Inc. Simplified circuit for correlating binary and non-binary sequences
CN115149979B (zh) * 2022-06-24 2023-12-29 中国电子科技集团公司第五十四研究所 一种适用于任意长度的可变采样率的伪码同步方法

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JPH033530A (ja) * 1989-05-31 1991-01-09 Nec Corp 相関復調装置
JP2720076B2 (ja) * 1989-07-17 1998-02-25 京セラ株式会社 直接スペクトラム拡散受信機の自動校正装置
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JP3283913B2 (ja) * 1992-08-20 2002-05-20 日本無線株式会社 Ｇｐｓ受信装置
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JP2689890B2 (ja) * 1993-12-30 1997-12-10 日本電気株式会社 スペクトラム拡散受信機
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JP3376224B2 (ja) * 1996-10-23 2003-02-10 株式会社エヌ・ティ・ティ・ドコモ Ｄｓ−ｃｄｍａ基地局間非同期セルラ方式における初期同期方法および受信機

Also Published As

Publication number Publication date
GB2311450A (en) 1997-09-24
GB9705962D0 (en) 1997-05-07
GB2311450B (en) 2000-07-26
SE9700909L (sv) 1997-09-23
JPH09261120A (ja) 1997-10-03
US5995537A (en) 1999-11-30
AU1642597A (en) 1997-11-27
AU686965B2 (en) 1998-02-12
JP2780697B2 (ja) 1998-07-30

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