WO2008078480A1 - 信号処理装置、プログラムおよび信号処理方法 - Google Patents

信号処理装置、プログラムおよび信号処理方法 Download PDF

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Publication number
WO2008078480A1
WO2008078480A1 PCT/JP2007/072550 JP2007072550W WO2008078480A1 WO 2008078480 A1 WO2008078480 A1 WO 2008078480A1 JP 2007072550 W JP2007072550 W JP 2007072550W WO 2008078480 A1 WO2008078480 A1 WO 2008078480A1
Authority
WO
WIPO (PCT)
Prior art keywords
section
signal processing
transmission path
filter
detecting section
Prior art date
Application number
PCT/JP2007/072550
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
Publication of WO2008078480A1 publication Critical patent/WO2008078480A1/ja

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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
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/03414—Multicarrier
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03445—Time domain
    • H04L2025/03471—Tapped delay lines

Landscapes

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

Abstract

　マルチパスによる受信品質の劣化を抑制する。 　信号処理装置のフィルタ１２を制御するコントローラ１６において、検出部１６３、推定部１６４および更新部１６５を設ける。ＯＦＤＭ信号が入力されたフィルタ１２からＦＦＴ、伝送路推定部、ＩＦＦＴ１５を介して検出部１６３に入力された信号に基づいて、検出部１６３は、主波に対して遅延した電波の振幅と遅延とを検出し、推定部１６４に伝達する。推定部１６４は、検出部１６３から伝達された振幅に応じて、伝送路の伝達関数のパラメータを推定してパラメータデータ１６７を生成する。更新部１６５は、パラメータデータ１６７に基づいて、伝送路の伝達関数をキャンセルするためのフィルタ係数を演算し、新たにフィルタ１２のフィルタ係数を更新する。
PCT/JP2007/072550 2006-12-22 2007-11-21 信号処理装置、プログラムおよび信号処理方法 WO2008078480A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006345844A JP2008160386A (ja) 2006-12-22 2006-12-22 信号処理装置、プログラムおよび信号処理方法
JP2006-345844 2006-12-22

Publications (1)

Publication Number Publication Date
WO2008078480A1 true WO2008078480A1 (ja) 2008-07-03

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PCT/JP2007/072550 WO2008078480A1 (ja) 2006-12-22 2007-11-21 信号処理装置、プログラムおよび信号処理方法

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JP (1) JP2008160386A (ja)
WO (1) WO2008078480A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015174294A1 (ja) * 2014-05-14 2015-11-19 ソニー株式会社 信号処理装置および信号処理方法、並びにプログラム

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2211512B1 (en) 2009-01-23 2017-12-27 Telefonaktiebolaget LM Ericsson (publ) Method and arrangement of delay spread compensation

Citations (6)

* 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
JPH08340315A (ja) * 1995-03-22 1996-12-24 Philips Electron Nv カスケード等化器を備えた受信機及びディジタル伝送システム
JP2001292120A (ja) * 2000-04-10 2001-10-19 Nippon Hoso Kyokai <Nhk> デジタル放送受信装置
JP2001313594A (ja) * 2000-04-28 2001-11-09 Fujitsu Ltd Ｄｍｔシステムのタイムドメインイコライザーの係数更新方法、レシーブ方法、ｄｍｔシステム及びｄｍｔモデム
JP2002111625A (ja) * 2000-10-03 2002-04-12 Nippon Hoso Kyokai <Nhk> Ｏｆｄｍ信号受信装置
JP2002111624A (ja) * 2000-10-03 2002-04-12 Nippon Hoso Kyokai <Nhk> Ｏｆｄｍ信号受信装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3694216B2 (ja) * 2000-05-22 2005-09-14 アルプス電気株式会社 Ｏｆｄｍ受信装置

Patent Citations (6)

* 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
JPH08340315A (ja) * 1995-03-22 1996-12-24 Philips Electron Nv カスケード等化器を備えた受信機及びディジタル伝送システム
JP2001292120A (ja) * 2000-04-10 2001-10-19 Nippon Hoso Kyokai <Nhk> デジタル放送受信装置
JP2001313594A (ja) * 2000-04-28 2001-11-09 Fujitsu Ltd Ｄｍｔシステムのタイムドメインイコライザーの係数更新方法、レシーブ方法、ｄｍｔシステム及びｄｍｔモデム
JP2002111625A (ja) * 2000-10-03 2002-04-12 Nippon Hoso Kyokai <Nhk> Ｏｆｄｍ信号受信装置
JP2002111624A (ja) * 2000-10-03 2002-04-12 Nippon Hoso Kyokai <Nhk> Ｏｆｄｍ信号受信装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015174294A1 (ja) * 2014-05-14 2015-11-19 ソニー株式会社 信号処理装置および信号処理方法、並びにプログラム

Also Published As

Publication number Publication date
JP2008160386A (ja) 2008-07-10

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