WO2008146355A1 - 歪補償装置 - Google Patents

歪補償装置 Download PDF

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Publication number
WO2008146355A1
WO2008146355A1 PCT/JP2007/060823 JP2007060823W WO2008146355A1 WO 2008146355 A1 WO2008146355 A1 WO 2008146355A1 JP 2007060823 W JP2007060823 W JP 2007060823W WO 2008146355 A1 WO2008146355 A1 WO 2008146355A1
Authority
WO
WIPO (PCT)
Prior art keywords
distortion
band
signal
lpf
amplifier
Prior art date
Application number
PCT/JP2007/060823
Other languages
English (en)
French (fr)
Inventor
Hitomaro Tougou
Original Assignee
Panasonic 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 Panasonic Corporation filed Critical Panasonic Corporation
Priority to PCT/JP2007/060823 priority Critical patent/WO2008146355A1/ja
Publication of WO2008146355A1 publication Critical patent/WO2008146355A1/ja

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
    • H03F1/0216—Continuous control

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

　信号帯域が広帯域化する場合においても、適応プリディストーション処理量の増加を抑圧し、コストアップを回避しつつ、低消費電力で歪補償を実現することができる歪補償装置。この装置において、ＰＤ部（１２０）は、増幅器（１５０）の出力信号に基づいて、増幅器（１５０）への入力信号をプリディストーションし、ＬＰＦ（１１０）は、プリディストーション前の前記入力信号を帯域制限し、ＬＰＦ（１７０）は、ＬＰＦ（１１０）と同等の特性を有し、増幅器（１５０）の出力である帰還信号を帯域制限し、修正部１８０は、入力信号及び帰還信号の帯域制限後の入出力特性に基づいてＰＤ部（１２０）の歪補償パラメータを更新する。
PCT/JP2007/060823 2007-05-28 2007-05-28 歪補償装置 WO2008146355A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/060823 WO2008146355A1 (ja) 2007-05-28 2007-05-28 歪補償装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/060823 WO2008146355A1 (ja) 2007-05-28 2007-05-28 歪補償装置

Publications (1)

Publication Number Publication Date
WO2008146355A1 true WO2008146355A1 (ja) 2008-12-04

Family

ID=40074640

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/060823 WO2008146355A1 (ja) 2007-05-28 2007-05-28 歪補償装置

Country Status (1)

Country Link
WO (1) WO2008146355A1 (ja)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013042238A (ja) * 2011-08-11 2013-02-28 Fujitsu Ltd 歪補償装置、歪補償方法及び無線送信機
JP2013106330A (ja) * 2011-11-16 2013-05-30 Fujitsu Ltd 狭帯域のフィードバック経路を有する適応的リニアライザ
JP2014121080A (ja) * 2012-12-19 2014-06-30 Fujitsu Ltd 歪補償装置および電力増幅装置の歪補償方法
JP2014132727A (ja) * 2013-01-07 2014-07-17 Fujitsu Ltd 送信信号電力制御装置、通信装置及びプリディストーション係数更新方法
JP2014526863A (ja) * 2011-09-22 2014-10-06 ダリ システムズ カンパニー リミテッド マルチチャネル広帯域通信システムにおいてデジタルプリディストーションの帯域幅を増大するシステム及び方法
JP2015154364A (ja) * 2014-02-17 2015-08-24 富士通株式会社 歪補償装置、無線送信装置及び歪補償方法
WO2017145285A1 (ja) * 2016-02-24 2017-08-31 三菱電機株式会社 歪み補償回路
US10218392B2 (en) 2013-02-26 2019-02-26 Dali Systems Co. Ltd. Wide bandwidth digital predistortion system with reduced sampling rate

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003103166A1 (ja) * 2002-05-31 2003-12-11 富士通株式会社 歪補償装置
JP2004128867A (ja) * 2002-10-02 2004-04-22 Nippon Hoso Kyokai <Nhk> 電力増幅器用歪補償装置
JP2004312344A (ja) * 2003-04-07 2004-11-04 Hitachi Kokusai Electric Inc 歪補償装置
JP2005244937A (ja) * 2004-01-28 2005-09-08 Ntt Docomo Inc 多周波帯用ルックアップテーブル型プリディストータ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003103166A1 (ja) * 2002-05-31 2003-12-11 富士通株式会社 歪補償装置
JP2004128867A (ja) * 2002-10-02 2004-04-22 Nippon Hoso Kyokai <Nhk> 電力増幅器用歪補償装置
JP2004312344A (ja) * 2003-04-07 2004-11-04 Hitachi Kokusai Electric Inc 歪補償装置
JP2005244937A (ja) * 2004-01-28 2005-09-08 Ntt Docomo Inc 多周波帯用ルックアップテーブル型プリディストータ

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013042238A (ja) * 2011-08-11 2013-02-28 Fujitsu Ltd 歪補償装置、歪補償方法及び無線送信機
US10256853B2 (en) 2011-09-22 2019-04-09 Dali Systems Co. Ltd. System and method for increasing bandwidth for digital predistortion in multi-channel wideband communication systems
JP2014526863A (ja) * 2011-09-22 2014-10-06 ダリ システムズ カンパニー リミテッド マルチチャネル広帯域通信システムにおいてデジタルプリディストーションの帯域幅を増大するシステム及び方法
US11245429B2 (en) 2011-09-22 2022-02-08 Dali Systems Co. Ltd. System and method for increasing bandwidth for digital predistortion in multi-channel wideband communication systems
US10749553B2 (en) 2011-09-22 2020-08-18 Dali Systems Co. Ltd System and method for increasing bandwidth for digital predistortion in multi-channel wideband communication systems
JP2013106330A (ja) * 2011-11-16 2013-05-30 Fujitsu Ltd 狭帯域のフィードバック経路を有する適応的リニアライザ
JP2014121080A (ja) * 2012-12-19 2014-06-30 Fujitsu Ltd 歪補償装置および電力増幅装置の歪補償方法
JP2014132727A (ja) * 2013-01-07 2014-07-17 Fujitsu Ltd 送信信号電力制御装置、通信装置及びプリディストーション係数更新方法
US10727879B2 (en) 2013-02-26 2020-07-28 Dali Systems Co. Ltd. Wide bandwidth digital predistortion system with reduced sampling rate
US10218392B2 (en) 2013-02-26 2019-02-26 Dali Systems Co. Ltd. Wide bandwidth digital predistortion system with reduced sampling rate
US11095326B2 (en) 2013-02-26 2021-08-17 Dali Systems Co. Ltd. Wide bandwidth digital predistortion system with reduced sampling rate
JP2015154364A (ja) * 2014-02-17 2015-08-24 富士通株式会社 歪補償装置、無線送信装置及び歪補償方法
WO2017145285A1 (ja) * 2016-02-24 2017-08-31 三菱電機株式会社 歪み補償回路

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