JP4215168B2 - 信号処理部及び無線機 - Google Patents

信号処理部及び無線機 Download PDF

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Publication number
JP4215168B2
JP4215168B2 JP2007010653A JP2007010653A JP4215168B2 JP 4215168 B2 JP4215168 B2 JP 4215168B2 JP 2007010653 A JP2007010653 A JP 2007010653A JP 2007010653 A JP2007010653 A JP 2007010653A JP 4215168 B2 JP4215168 B2 JP 4215168B2
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JP
Japan
Prior art keywords
unit
carrier
correlation
detection
data
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
JP2007010653A
Other languages
English (en)
Japanese (ja)
Other versions
JP2008177944A (ja
JP2008177944A5 (enExample
Inventor
薫 小林
滋 竹岸
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nihon Dempa Kogyo Co Ltd
Original Assignee
Nihon Dempa Kogyo Co Ltd
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 Nihon Dempa Kogyo Co Ltd filed Critical Nihon Dempa Kogyo Co Ltd
Priority to JP2007010653A priority Critical patent/JP4215168B2/ja
Priority to PCT/JP2007/074138 priority patent/WO2008087818A1/ja
Publication of JP2008177944A publication Critical patent/JP2008177944A/ja
Publication of JP2008177944A5 publication Critical patent/JP2008177944A5/ja
Application granted granted Critical
Publication of JP4215168B2 publication Critical patent/JP4215168B2/ja
Priority to US12/382,158 priority patent/US8233519B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end
    • H04L2027/0026—Correction of carrier offset
    • H04L2027/0036—Correction of carrier offset using a recovered symbol clock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0046—Open loops
    • H04L2027/0051—Harmonic tracking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0083—Signalling arrangements
    • H04L2027/0089—In-band signals
    • H04L2027/0093—Intermittant signals
    • H04L2027/0095—Intermittant signals in a preamble or similar structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Transceivers (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
JP2007010653A 2007-01-19 2007-01-19 信号処理部及び無線機 Expired - Fee Related JP4215168B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2007010653A JP4215168B2 (ja) 2007-01-19 2007-01-19 信号処理部及び無線機
PCT/JP2007/074138 WO2008087818A1 (ja) 2007-01-19 2007-12-14 信号処理部及び無線機
US12/382,158 US8233519B2 (en) 2007-01-19 2009-03-10 Signal processing unit and wireless communication device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007010653A JP4215168B2 (ja) 2007-01-19 2007-01-19 信号処理部及び無線機

Publications (3)

Publication Number Publication Date
JP2008177944A JP2008177944A (ja) 2008-07-31
JP2008177944A5 JP2008177944A5 (enExample) 2008-11-13
JP4215168B2 true JP4215168B2 (ja) 2009-01-28

Family

ID=39635823

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007010653A Expired - Fee Related JP4215168B2 (ja) 2007-01-19 2007-01-19 信号処理部及び無線機

Country Status (3)

Country Link
US (1) US8233519B2 (enExample)
JP (1) JP4215168B2 (enExample)
WO (1) WO2008087818A1 (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4224105B2 (ja) * 2007-01-19 2009-02-12 日本電波工業株式会社 信号処理部及び無線機
US8275077B1 (en) * 2010-10-13 2012-09-25 The United States Of America As Represented By The Director, National Security Agency Coherent demodulation of ais-GMSK signals in co-channel

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5608722A (en) * 1995-04-03 1997-03-04 Qualcomm Incorporated Multi-user communication system architecture with distributed receivers
JP2001094471A (ja) * 1999-09-24 2001-04-06 Fujitsu Ltd 受信機
JP2001177436A (ja) * 1999-12-15 2001-06-29 Nec Corp 移動通信システムにおけるａｆｃ制御装置及びその方法並びにそれを使用した移動通信機
JP3464645B2 (ja) * 2000-08-30 2003-11-10 松下電器産業株式会社 無線受信装置
JP2004214960A (ja) 2002-12-27 2004-07-29 Sony Corp Ｏｆｄｍ復調装置
JP4346465B2 (ja) * 2003-09-29 2009-10-21 三洋電機株式会社 受信方法および装置
JP4583374B2 (ja) * 2004-04-14 2010-11-17 パナソニック株式会社 受信装置
JP4031003B2 (ja) * 2005-03-03 2008-01-09 日本電波工業株式会社 微弱電力によるスペクトル拡散通信方法及びシステム、高周波無線機
JP2006261985A (ja) * 2005-03-16 2006-09-28 Mitsubishi Electric Corp スペクトル拡散通信用受信機
US8139680B2 (en) * 2007-01-12 2012-03-20 General Dynamics C4 Systems, Inc. Signal acquisition methods and apparatus in wireless communication systems
JP4224105B2 (ja) * 2007-01-19 2009-02-12 日本電波工業株式会社 信号処理部及び無線機

Also Published As

Publication number Publication date
WO2008087818A1 (ja) 2008-07-24
US8233519B2 (en) 2012-07-31
JP2008177944A (ja) 2008-07-31
US20090196331A1 (en) 2009-08-06

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