ATE540470T1 - Verzerrungskompensierungsvorrichtung - Google Patents

Verzerrungskompensierungsvorrichtung

Info

Publication number
ATE540470T1
ATE540470T1 AT10162952T AT10162952T ATE540470T1 AT E540470 T1 ATE540470 T1 AT E540470T1 AT 10162952 T AT10162952 T AT 10162952T AT 10162952 T AT10162952 T AT 10162952T AT E540470 T1 ATE540470 T1 AT E540470T1
Authority
AT
Austria
Prior art keywords
distortion compensation
coefficient
amplifier
before input
signal before
Prior art date
Application number
AT10162952T
Other languages
English (en)
Inventor
Mitsuharu Hamano
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of ATE540470T1 publication Critical patent/ATE540470T1/de

Links

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
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3247—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using feedback acting on predistortion circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2201/00—Indexing scheme relating to details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements covered by H03F1/00
    • H03F2201/32—Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion
    • H03F2201/3233—Adaptive predistortion using lookup table, e.g. memory, RAM, ROM, LUT, to generate the predistortion

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)
AT10162952T 2009-05-21 2010-05-17 Verzerrungskompensierungsvorrichtung ATE540470T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009122678A JP5146404B2 (ja) 2009-05-21 2009-05-21 歪補償装置

Publications (1)

Publication Number Publication Date
ATE540470T1 true ATE540470T1 (de) 2012-01-15

Family

ID=42634804

Family Applications (1)

Application Number Title Priority Date Filing Date
AT10162952T ATE540470T1 (de) 2009-05-21 2010-05-17 Verzerrungskompensierungsvorrichtung

Country Status (4)

Country Link
US (1) US7973601B2 (de)
EP (1) EP2254240B1 (de)
JP (1) JP5146404B2 (de)
AT (1) ATE540470T1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102265508B (zh) * 2008-12-27 2014-04-16 住友电气工业株式会社 失真补偿电路及无线基站
CN102480450B (zh) * 2010-11-30 2014-12-10 富士通株式会社 预失真器控制装置和方法、功率控制状态检测方法
JP5734143B2 (ja) * 2011-09-08 2015-06-10 株式会社日立国際電気 増幅装置
WO2014018379A1 (en) 2012-07-23 2014-01-30 Dali Systems Co. Ltd. Method and system for aligning signals widely spaced in frequency for wideband digital predistortion in wireless communication systems
US9722644B2 (en) * 2015-08-18 2017-08-01 Nokia Solutions And Networks Oy Frequency switching within time domain digital pre-distortion
US11239804B2 (en) 2019-05-14 2022-02-01 Empower RF Systems, Inc. Systems and methods for controlling a power amplifier output

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0579899A (ja) 1991-09-24 1993-03-30 Ono Sokki Co Ltd 音響インテンシテイ計測装置
FR2746563B1 (fr) * 1996-03-22 1998-06-05 Matra Communication Procede pour corriger des non-linearites d'un amplificateur, et emetteur radio mettant en oeuvre un tel procede
JP4256057B2 (ja) * 1999-09-30 2009-04-22 株式会社東芝 非線形補償器
JP4183364B2 (ja) * 1999-12-28 2008-11-19 富士通株式会社 歪補償装置
JP4014343B2 (ja) * 1999-12-28 2007-11-28 富士通株式会社 歪補償装置
WO2002087097A1 (fr) * 2001-04-18 2002-10-31 Fujitsu Limited Dispositif de correction de distorsion
JP2004015660A (ja) * 2002-06-10 2004-01-15 Mitsubishi Electric Corp 歪補償器
JP4657920B2 (ja) * 2002-11-14 2011-03-23 株式会社日立国際電気 歪み補償回路、歪み補償信号生成方法、及び電力増幅器
EP1791310B1 (de) * 2004-09-13 2011-07-13 Mitsubishi Electric Corporation Verzerrungskompensations-Vorrichtung
JP2006148691A (ja) * 2004-11-22 2006-06-08 Mitsubishi Electric Corp 歪補償装置
JP2008199200A (ja) 2007-02-09 2008-08-28 Toshiba Corp ループバック遅延推定装置及びループバック遅延推定方法
JP2008211449A (ja) * 2007-02-26 2008-09-11 Fuji Electric Device Technology Co Ltd Ｅｅｒ増幅装置、ｅｅｒ増幅装置における同期制御方法、および無線通信装置
JP4935897B2 (ja) * 2007-03-16 2012-05-23 富士通株式会社 歪補償装置及びその遅延時間推定方法
WO2009011071A1 (en) 2007-07-19 2009-01-22 Fujitsu Limited Amplifier device with nonlinear-distortion compensation

Also Published As

Publication number Publication date
EP2254240B1 (de) 2012-01-04
US7973601B2 (en) 2011-07-05
US20100295611A1 (en) 2010-11-25
EP2254240A1 (de) 2010-11-24
JP2010273064A (ja) 2010-12-02
JP5146404B2 (ja) 2013-02-20

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