NO20005417L - Fremgangsmåte for linearisering av en forsterker, samt forsterkeranordning - Google Patents

Fremgangsmåte for linearisering av en forsterker, samt forsterkeranordning

Info

Publication number
NO20005417L
NO20005417L NO20005417A NO20005417A NO20005417L NO 20005417 L NO20005417 L NO 20005417L NO 20005417 A NO20005417 A NO 20005417A NO 20005417 A NO20005417 A NO 20005417A NO 20005417 L NO20005417 L NO 20005417L
Authority
NO
Norway
Prior art keywords
amplifier
signal
linearizing
difference
well
Prior art date
Application number
NO20005417A
Other languages
English (en)
Norwegian (no)
Other versions
NO20005417D0 (no
Inventor
Olli Tapio
Toni Nefling
Original Assignee
Nokia Networks Oy
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 Nokia Networks Oy filed Critical Nokia Networks Oy
Publication of NO20005417D0 publication Critical patent/NO20005417D0/no
Publication of NO20005417L publication Critical patent/NO20005417L/no

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)
  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
NO20005417A 1998-04-30 2000-10-27 Fremgangsmåte for linearisering av en forsterker, samt forsterkeranordning NO20005417L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI980967A FI105506B (fi) 1998-04-30 1998-04-30 Vahvistimen linearisointimenetelmä ja vahvistinjärjestely
PCT/FI1999/000352 WO1999057806A1 (en) 1998-04-30 1999-04-28 Linearization method for amplifier, and amplifier arrangement

Publications (2)

Publication Number Publication Date
NO20005417D0 NO20005417D0 (no) 2000-10-27
NO20005417L true NO20005417L (no) 2000-12-27

Family

ID=8551630

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20005417A NO20005417L (no) 1998-04-30 2000-10-27 Fremgangsmåte for linearisering av en forsterker, samt forsterkeranordning

Country Status (10)

Country Link
US (1) US6741663B1 (de)
EP (1) EP1075731B1 (de)
JP (1) JP2002514028A (de)
CN (1) CN1299532A (de)
AT (1) ATE275301T1 (de)
AU (1) AU3712899A (de)
DE (1) DE69919861T2 (de)
FI (1) FI105506B (de)
NO (1) NO20005417L (de)
WO (1) WO1999057806A1 (de)

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JP4256057B2 (ja) 1999-09-30 2009-04-22 株式会社東芝 非線形補償器
AU2069001A (en) * 1999-12-28 2001-07-09 Motorola, Inc. Locally-adapted fractionally-spaced linear predistorter
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US7061991B2 (en) * 2000-07-21 2006-06-13 Pmc - Sierra Inc. Systems and methods for the reduction of peak to average signal levels of multi-bearer single-carrier and multi-carrier waveforms
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US7409004B2 (en) * 2001-06-19 2008-08-05 Matsushita Electric Industrial Co., Ltd. Hybrid polar modulator differential phase Cartesian feedback correction circuit for power amplifier linearization
JP4012725B2 (ja) 2001-12-05 2007-11-21 株式会社日立コミュニケーションテクノロジー プリディストーション型増幅装置
FR2835120B1 (fr) * 2002-01-21 2006-10-20 Evolium Sas Procede et dispositif de preparation de signaux destines a etre compares pour etablir une pre-distorsion sur l'entree d'un amplificateur
CN1177449C (zh) 2002-04-23 2004-11-24 华为技术有限公司 基于基带数字预失真技术的提高射频功率放大器效率的方法
US8064850B2 (en) * 2002-05-01 2011-11-22 Dali Systems Co., Ltd. High efficiency linearization power amplifier for wireless communication
US8811917B2 (en) 2002-05-01 2014-08-19 Dali Systems Co. Ltd. Digital hybrid mode power amplifier system
US6985704B2 (en) 2002-05-01 2006-01-10 Dali Yang System and method for digital memorized predistortion for wireless communication
US8472897B1 (en) 2006-12-22 2013-06-25 Dali Systems Co. Ltd. Power amplifier predistortion methods and apparatus
US8380143B2 (en) 2002-05-01 2013-02-19 Dali Systems Co. Ltd Power amplifier time-delay invariant predistortion methods and apparatus
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US20050111574A1 (en) * 2003-09-30 2005-05-26 Jan-Erik Muller Transmission device with digital predistortion, and method for regulating predistortion in a transmission device
US7372918B2 (en) * 2003-09-30 2008-05-13 Infineon Technologies Ag Transmission device with adaptive digital predistortion, transceiver with transmission device, and method for operating a transmission device
US7239671B2 (en) * 2004-07-09 2007-07-03 Powerwave Technologies, Inc. System and method for digital timing error correction in a communications system utilizing adaptive predistortion
EP1791310B1 (de) * 2004-09-13 2011-07-13 Mitsubishi Electric Corporation Verzerrungskompensations-Vorrichtung
US7193462B2 (en) * 2005-03-22 2007-03-20 Powerwave Technologies, Inc. RF power amplifier system employing an analog predistortion module using zero crossings
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JP4951238B2 (ja) 2005-12-27 2012-06-13 パナソニック株式会社 極座標変調送信装置及び適応歪補償処理システム並びに極座標変調送信方法及び適応歪補償処理方法
KR100720743B1 (ko) 2006-11-22 2007-05-23 주식회사 프리웍스 디지털 전치 왜곡을 이용한 디지털 광중계 시스템 및 그방법
US9026067B2 (en) * 2007-04-23 2015-05-05 Dali Systems Co. Ltd. Remotely reconfigurable power amplifier system and method
KR20100014339A (ko) * 2006-12-26 2010-02-10 달리 시스템즈 씨오. 엘티디. 다중 채널 광대역 통신 시스템에서의 기저 대역 전치 왜곡 선형화를 위한 방법 및 시스템
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US8224266B2 (en) * 2007-08-30 2012-07-17 Dali Systems Co., Ltd. Power amplifier predistortion methods and apparatus using envelope and phase detector
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KR101669173B1 (ko) 2007-12-07 2016-10-25 달리 시스템즈 씨오. 엘티디. 베이스밴드-도출형 광대역 ｒｆ 디지털 전치 왜곡 시스템
CN100578922C (zh) 2007-12-17 2010-01-06 华为技术有限公司 高效功率放大器
GB2465399B (en) 2008-11-17 2015-07-15 Nujira Ltd Generation of pre-distortion coefficients
CN101908861B (zh) * 2009-06-08 2012-11-07 瑞昱半导体股份有限公司 传送器、输出信号失真降低方法及预失真参数产生方法
US8295790B2 (en) * 2009-12-10 2012-10-23 Vyycore Ltd. Apparatus and method for pre-distorting and amplifying a signal
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KR102136940B1 (ko) 2010-09-14 2020-07-23 달리 시스템즈 씨오. 엘티디. 원격으로 재구성가능한 분산 안테나 시스템 및 방법
JP2013115725A (ja) * 2011-11-30 2013-06-10 Asahi Kasei Electronics Co Ltd 歪補償器
US9225296B2 (en) 2012-07-23 2015-12-29 Dali Systems Co. Ltd. Method and system for aligning signals widely spaced in frequency for wideband digital predistortion in wireless communication systems
CN104038459B (zh) * 2013-03-04 2018-01-05 中兴通讯股份有限公司 一种iq调制器及其处理方法
US10656254B2 (en) * 2015-11-19 2020-05-19 Analog Devices, Inc. Analog ultrasound beamformer
EP3306817B8 (de) * 2016-10-07 2021-04-21 Rohde & Schwarz GmbH & Co. KG Vorverzerrungssystem und -verfahren
CN109683115B (zh) * 2019-02-12 2024-05-03 泰山医学院 一种磁共振射频功率放大器装置及磁共振系统

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JPH0771118B2 (ja) * 1989-12-27 1995-07-31 三菱電機株式会社 変調装置
FR2652969A1 (fr) * 1989-10-06 1991-04-12 Philips Electronique Lab Dispositif de predistorsion pour systeme de transmission numerique.
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IT1265271B1 (it) * 1993-12-14 1996-10-31 Alcatel Italia Sistema di predistorsione in banda base per la linearizzazione adattativa di amplificatori di potenza
FR2746564B1 (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
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US6075411A (en) * 1997-12-22 2000-06-13 Telefonaktiebolaget Lm Ericsson Method and apparatus for wideband predistortion linearization

Also Published As

Publication number Publication date
WO1999057806A1 (en) 1999-11-11
DE69919861T2 (de) 2005-09-01
DE69919861D1 (de) 2004-10-07
FI980967A0 (fi) 1998-04-30
ATE275301T1 (de) 2004-09-15
AU3712899A (en) 1999-11-23
US6741663B1 (en) 2004-05-25
EP1075731A1 (de) 2001-02-14
FI105506B (fi) 2000-08-31
FI980967A7 (fi) 1999-10-31
EP1075731B1 (de) 2004-09-01
JP2002514028A (ja) 2002-05-14
NO20005417D0 (no) 2000-10-27
CN1299532A (zh) 2001-06-13

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