WO2008087818A1 - 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
WO2008087818A1
WO2008087818A1 PCT/JP2007/074138 JP2007074138W WO2008087818A1 WO 2008087818 A1 WO2008087818 A1 WO 2008087818A1 JP 2007074138 W JP2007074138 W JP 2007074138W WO 2008087818 A1 WO2008087818 A1 WO 2008087818A1
Authority
WO
WIPO (PCT)
Prior art keywords
correlation
unit
carrier
processing
outputs
Prior art date
Application number
PCT/JP2007/074138
Other languages
English (en)
French (fr)
Inventor
Kaoru Kobayashi
Shigeru Takegishi
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.
Publication of WO2008087818A1 publication Critical patent/WO2008087818A1/ja
Priority to US12/382,158 priority Critical patent/US8233519B2/en

Links

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)
  • Transceivers (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

　相関検出を行う場合、小規模の演算回路で短時間に周波数検出を行うことができる信号処理部及び無線機を提供する。 　キャリアデータ生成部１６と、キャリア復調部１５と、キャリア復調データに対して複数に分割して部分相関検出処理として逆拡散処理、累積演算処理を行い、更に部分相関検出処理の結果について全加算処理を行い、相関検出データを出力するマッチドフィルタ部１９と、相関検出データから相関ピークを検出し、相関ピークの位置情報を出力する相関ピーク検出部２２と、キャリア復調データに対して周波数ズレ量をキャリアデータ生成部１６に出力する粗周波数ズレ検出部２３と、相関検出データと相関ピークの位置情報から微周波数ズレ量をキャリアデータ生成部１６に出力する微周波数検出部２４とを有する信号処理部及び無線機である。
PCT/JP2007/074138 2007-01-19 2007-12-14 信号処理部及び無線機 WO2008087818A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/382,158 US8233519B2 (en) 2007-01-19 2009-03-10 Signal processing unit and wireless communication device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-010653 2007-01-19
JP2007010653A JP4215168B2 (ja) 2007-01-19 2007-01-19 信号処理部及び無線機

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/382,158 Continuation US8233519B2 (en) 2007-01-19 2009-03-10 Signal processing unit and wireless communication device

Publications (1)

Publication Number Publication Date
WO2008087818A1 true WO2008087818A1 (ja) 2008-07-24

Family

ID=39635823

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/074138 WO2008087818A1 (ja) 2007-01-19 2007-12-14 信号処理部及び無線機

Country Status (3)

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

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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
WO2005101711A1 (ja) * 2004-04-14 2005-10-27 Matsushita Electric Industrial Co., Ltd. 受信装置
JP2006246059A (ja) * 2005-03-03 2006-09-14 Nippon Dempa Kogyo Co Ltd 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

Family Cites Families (6)

* 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
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
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
WO2005101711A1 (ja) * 2004-04-14 2005-10-27 Matsushita Electric Industrial Co., Ltd. 受信装置
JP2006246059A (ja) * 2005-03-03 2006-09-14 Nippon Dempa Kogyo Co Ltd 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

Also Published As

Publication number Publication date
JP2008177944A (ja) 2008-07-31
JP4215168B2 (ja) 2009-01-28
US8233519B2 (en) 2012-07-31
US20090196331A1 (en) 2009-08-06

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