FI980967A - Vahvistimen linearisointimenetelmä ja vahvistinjärjestely - Google Patents

Vahvistimen linearisointimenetelmä ja vahvistinjärjestely Download PDF

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Publication number
FI980967A
FI980967A FI980967A FI980967A FI980967A FI 980967 A FI980967 A FI 980967A FI 980967 A FI980967 A FI 980967A FI 980967 A FI980967 A FI 980967A FI 980967 A FI980967 A FI 980967A
Authority
FI
Finland
Prior art keywords
amplifier
amplifiers
signal
difference
amplifier arrangements
Prior art date
Application number
FI980967A
Other languages
English (en)
Swedish (sv)
Other versions
FI105506B (fi
FI980967A0 (fi
Inventor
Olli Tapio
Toni Neffling
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 FI980967A0 publication Critical patent/FI980967A0/fi
Priority to FI980967A priority Critical patent/FI105506B/fi
Priority to EP99919304A priority patent/EP1075731B1/en
Priority to JP2000547694A priority patent/JP2002514028A/ja
Priority to PCT/FI1999/000352 priority patent/WO1999057806A1/en
Priority to AU37128/99A priority patent/AU3712899A/en
Priority to DE69919861T priority patent/DE69919861T2/de
Priority to CN99805648A priority patent/CN1299532A/zh
Priority to AT99919304T priority patent/ATE275301T1/de
Publication of FI980967A publication Critical patent/FI980967A/fi
Application granted granted Critical
Publication of FI105506B publication Critical patent/FI105506B/fi
Priority to NO20005417A priority patent/NO20005417L/no
Priority to US09/702,922 priority patent/US6741663B1/en

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)
FI980967A 1998-04-30 1998-04-30 Vahvistimen linearisointimenetelmä ja vahvistinjärjestely FI105506B (fi)

Priority Applications (10)

Application Number Priority Date Filing Date Title
FI980967A FI105506B (fi) 1998-04-30 1998-04-30 Vahvistimen linearisointimenetelmä ja vahvistinjärjestely
AU37128/99A AU3712899A (en) 1998-04-30 1999-04-28 Linearization method for amplifier, and amplifier arrangement
JP2000547694A JP2002514028A (ja) 1998-04-30 1999-04-28 増幅器の直線化方法及び増幅器構成体
PCT/FI1999/000352 WO1999057806A1 (en) 1998-04-30 1999-04-28 Linearization method for amplifier, and amplifier arrangement
EP99919304A EP1075731B1 (en) 1998-04-30 1999-04-28 Linearization method for amplifier, and amplifier arrangement
DE69919861T DE69919861T2 (de) 1998-04-30 1999-04-28 Linearisierung für verstärkerund verstärkervorrichtung
CN99805648A CN1299532A (zh) 1998-04-30 1999-04-28 用于放大器的线性化方法与放大器设备
AT99919304T ATE275301T1 (de) 1998-04-30 1999-04-28 Linearisierung für verstärkerund verstärkervorrichtung
NO20005417A NO20005417L (no) 1998-04-30 2000-10-27 Fremgangsmåte for linearisering av en forsterker, samt forsterkeranordning
US09/702,922 US6741663B1 (en) 1998-04-30 2000-10-27 Linearization method for amplifier, and amplifier arrangement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI980967A FI105506B (fi) 1998-04-30 1998-04-30 Vahvistimen linearisointimenetelmä ja vahvistinjärjestely
FI980967 1998-04-30

Publications (3)

Publication Number Publication Date
FI980967A0 FI980967A0 (fi) 1998-04-30
FI980967A true FI980967A (fi) 1999-10-31
FI105506B FI105506B (fi) 2000-08-31

Family

ID=8551630

Family Applications (1)

Application Number Title Priority Date Filing Date
FI980967A FI105506B (fi) 1998-04-30 1998-04-30 Vahvistimen linearisointimenetelmä ja vahvistinjärjestely

Country Status (10)

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

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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
US6711221B1 (en) * 2000-02-16 2004-03-23 Thomson Licensing S.A. Sampling offset correction in an orthogonal frequency division multiplexing system
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US6940919B2 (en) * 2001-04-16 2005-09-06 Northrop Grumman Corporation Bandpass predistortion method and apparatus for radio transmission
GB2376581B (en) * 2001-06-15 2005-03-09 Wireless Systems Int Ltd Control scheme for signal processing arrangement
GB2376613B (en) * 2001-06-15 2005-01-05 Wireless Systems Int Ltd Methods and apparatus for signal distortion correction
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
US8811917B2 (en) 2002-05-01 2014-08-19 Dali Systems Co. Ltd. Digital hybrid mode power amplifier system
US8064850B2 (en) 2002-05-01 2011-11-22 Dali Systems Co., Ltd. High efficiency linearization power amplifier for wireless communication
US8380143B2 (en) 2002-05-01 2013-02-19 Dali Systems Co. Ltd Power amplifier time-delay invariant predistortion methods and apparatus
US8472897B1 (en) 2006-12-22 2013-06-25 Dali Systems Co. Ltd. Power amplifier predistortion methods and apparatus
US6985704B2 (en) * 2002-05-01 2006-01-10 Dali Yang System and method for digital memorized predistortion for wireless communication
SE525221C2 (sv) 2003-03-25 2004-12-28 Ericsson Telefon Ab L M Förförvrängare för effektförstärkare
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
CN1604577A (zh) * 2003-09-30 2005-04-06 因芬尼昂技术股份公司 具适应性数字预失真的发射装置、具该发射装置的收发器及操作该发射装置的方法
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
WO2006030481A1 (ja) * 2004-09-13 2006-03-23 Mitsubishi Denki Kabushiki Kaisha 歪補償装置
US7193462B2 (en) * 2005-03-22 2007-03-20 Powerwave Technologies, Inc. RF power amplifier system employing an analog predistortion module using zero crossings
CN100563225C (zh) 2005-05-27 2009-11-25 华为技术有限公司 对基带数字信号进行预失真处理的通用装置
FI20055354A0 (fi) * 2005-06-29 2005-06-29 Nokia Corp Datankäsittelymenetelmä, lähetin, laite, verkkoelementti ja tukiasema
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
KR20140091616A (ko) 2006-12-26 2014-07-21 달리 시스템즈 씨오. 엘티디. 다중 채널 광대역 통신 시스템에서의 기저 대역 전치 왜곡 선형화를 위한 방법 및 시스템
US8274332B2 (en) 2007-04-23 2012-09-25 Dali Systems Co. Ltd. N-way Doherty distributed power amplifier with power tracking
KR101484796B1 (ko) * 2007-04-23 2015-01-20 달리 시스템즈 씨오. 엘티디. Ｎ-웨이 도허티 분산형 전력 증폭기
US20080285640A1 (en) * 2007-05-15 2008-11-20 Crestcom, Inc. RF Transmitter With Nonlinear Predistortion and Method Therefor
US8224266B2 (en) * 2007-08-30 2012-07-17 Dali Systems Co., Ltd. Power amplifier predistortion methods and apparatus using envelope and phase detector
WO2009109808A2 (en) * 2007-12-07 2009-09-11 Dali Systems Co. Ltd. Baseband-derived rf digital predistortion
CN101184070B (zh) * 2007-12-07 2010-06-02 北京北方烽火科技有限公司 一种百兆宽带数字预失真功率放大装置和方法
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
EP3068047A3 (en) 2009-12-21 2017-03-01 Dali Systems Co. Ltd. Modulation agnostic digital hybrid mode power amplifier system and method
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 (en) * 2016-10-07 2021-04-21 Rohde & Schwarz GmbH & Co. KG Predistortion system and method
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
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Also Published As

Publication number Publication date
EP1075731B1 (en) 2004-09-01
FI105506B (fi) 2000-08-31
JP2002514028A (ja) 2002-05-14
EP1075731A1 (en) 2001-02-14
DE69919861T2 (de) 2005-09-01
CN1299532A (zh) 2001-06-13
DE69919861D1 (de) 2004-10-07
WO1999057806A1 (en) 1999-11-11
NO20005417D0 (no) 2000-10-27
FI980967A0 (fi) 1998-04-30
US6741663B1 (en) 2004-05-25
NO20005417L (no) 2000-12-27
ATE275301T1 (de) 2004-09-15
AU3712899A (en) 1999-11-23

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