WO2008129897A1 - Ｏｆｄｍ受信装置 - Google Patents

Ｏｆｄｍ受信装置 Download PDF

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Publication number
WO2008129897A1
WO2008129897A1 PCT/JP2008/052728 JP2008052728W WO2008129897A1 WO 2008129897 A1 WO2008129897 A1 WO 2008129897A1 JP 2008052728 W JP2008052728 W JP 2008052728W WO 2008129897 A1 WO2008129897 A1 WO 2008129897A1
Authority
WO
WIPO (PCT)
Prior art keywords
unit
transmission path
reception apparatus
signal
ofdm reception
Prior art date
Application number
PCT/JP2008/052728
Other languages
English (en)
French (fr)
Inventor
Handa Chen
Original Assignee
Megachips Corporation
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 Megachips Corporation filed Critical Megachips Corporation
Priority to KR1020097019628A priority Critical patent/KR101488240B1/ko
Publication of WO2008129897A1 publication Critical patent/WO2008129897A1/ja

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2649—Demodulators
    • H04L27/26524—Fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators in combination with other circuits for demodulation
    • H04L27/26526—Fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators in combination with other circuits for demodulation with inverse FFT [IFFT] or inverse DFT [IDFT] demodulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] receiver or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0212—Channel estimation of impulse response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/022—Channel estimation of frequency response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2675—Pilot or known symbols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/01—Equalisers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Noise Elimination (AREA)

Abstract

　本発明は、受信信号から伝送路情報をより正確に取り出すことができるＯＦＤＭ受信装置を提供することを目的とする。そして、本発明に係るＯＦＤＭ受信装置（１００）は、ＦＦＴ部（１）、除算部（２）、ＩＦＦＴ部（７）、およびＬＰＦ部（８）を備えている。ＦＦＴ部（１）は、外部から受信した受信信号をフーリエ変換する。除算部（２）は、ＦＦＴ部（１）からの出力信号に含まれるパイロット信号を、規定のパイロット信号で除して、周波数領域の伝送路伝達関数を生成する。ＩＦＦＴ部（７）は、周波数領域の伝送路伝達関数を逆フーリエ変換し、時間領域の伝送路インパルス応答を生成する。ＬＰＦ部（８）は、ＩＦＦＴ部（７）で生成された時間領域の伝送路インパルス応答に対して、フィルタリング処理を施す。当該ＯＦＤＭ受信装置（１００）は、ＬＰＦ部８からの出力信号を基に、ＯＦＤＭ信号の復調処理を実施する。
PCT/JP2008/052728 2007-04-18 2008-02-19 Ｏｆｄｍ受信装置 WO2008129897A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020097019628A KR101488240B1 (ko) 2007-04-18 2008-02-19 Ｏｆｄｍ 수신장치

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-109258 2007-04-18
JP2007109258A JP5146929B2 (ja) 2007-04-18 2007-04-18 Ｏｆｄｍ受信装置

Publications (1)

Publication Number Publication Date
WO2008129897A1 true WO2008129897A1 (ja) 2008-10-30

Family

ID=39875426

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/052728 WO2008129897A1 (ja) 2007-04-18 2008-02-19 Ｏｆｄｍ受信装置

Country Status (3)

Country Link
JP (1) JP5146929B2 (ja)
KR (1) KR101488240B1 (ja)
WO (1) WO2008129897A1 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5995703B2 (ja) 2012-12-19 2016-09-21 三菱電機株式会社 等化装置及び等化方法並びに受信装置
DE112014006182T5 (de) * 2014-01-16 2016-09-29 Mitsubishi Electric Corporation Empfangsvorrichtung und Empfangsverfahren
JP6324257B2 (ja) * 2014-08-12 2018-05-16 三菱電機株式会社 電波識別システム

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0575568A (ja) * 1991-01-17 1993-03-26 Fr Telecom 通信路の周波数応答の評価と限界判定を備えた時間周波数領域に多重化されたデイジタルデータをコヒレント復調するための装置
JPH1075226A (ja) * 1996-08-30 1998-03-17 Jisedai Digital Television Hoso Syst Kenkyusho:Kk 直交周波数分割多重信号復調装置
JPH1117642A (ja) * 1997-06-26 1999-01-22 Toshiba Corp 受信装置
JPH11163822A (ja) * 1997-11-26 1999-06-18 Jisedai Digital Television Hoso System Kenkyusho Ｏｆｄｍ用受信装置
JP2000115087A (ja) * 1998-09-30 2000-04-21 Jisedai Digital Television Hoso System Kenkyusho:Kk 遅延プロファイル測定装置
JP2002009724A (ja) * 2000-06-19 2002-01-11 Nippon Hoso Kyokai <Nhk> 直交周波数分割多重伝送方式におけるキャリアの配置方法、及び送信装置並びに受信装置
JP2003218827A (ja) * 2002-01-23 2003-07-31 Mitsubishi Electric Corp 受信装置および伝送路推定方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001211102A (ja) * 2000-01-27 2001-08-03 Nec Ic Microcomput Syst Ltd レイク受信機

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0575568A (ja) * 1991-01-17 1993-03-26 Fr Telecom 通信路の周波数応答の評価と限界判定を備えた時間周波数領域に多重化されたデイジタルデータをコヒレント復調するための装置
JPH1075226A (ja) * 1996-08-30 1998-03-17 Jisedai Digital Television Hoso Syst Kenkyusho:Kk 直交周波数分割多重信号復調装置
JPH1117642A (ja) * 1997-06-26 1999-01-22 Toshiba Corp 受信装置
JPH11163822A (ja) * 1997-11-26 1999-06-18 Jisedai Digital Television Hoso System Kenkyusho Ｏｆｄｍ用受信装置
JP2000115087A (ja) * 1998-09-30 2000-04-21 Jisedai Digital Television Hoso System Kenkyusho:Kk 遅延プロファイル測定装置
JP2002009724A (ja) * 2000-06-19 2002-01-11 Nippon Hoso Kyokai <Nhk> 直交周波数分割多重伝送方式におけるキャリアの配置方法、及び送信装置並びに受信装置
JP2003218827A (ja) * 2002-01-23 2003-07-31 Mitsubishi Electric Corp 受信装置および伝送路推定方法

Also Published As

Publication number Publication date
JP2008271018A (ja) 2008-11-06
JP5146929B2 (ja) 2013-02-20
KR20090128419A (ko) 2009-12-15
KR101488240B1 (ko) 2015-01-30

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