ATE271277T1 - Adaptive linearisierung von leistungsverstärkern - Google Patents

Adaptive linearisierung von leistungsverstärkern

Info

Publication number
ATE271277T1
ATE271277T1 AT00971382T AT00971382T ATE271277T1 AT E271277 T1 ATE271277 T1 AT E271277T1 AT 00971382 T AT00971382 T AT 00971382T AT 00971382 T AT00971382 T AT 00971382T AT E271277 T1 ATE271277 T1 AT E271277T1
Authority
AT
Austria
Prior art keywords
power amplifier
distortion
signal
ramp
well
Prior art date
Application number
AT00971382T
Other languages
English (en)
Inventor
Jonas Persson
Original Assignee
Ericsson Mobile Platforms Ab
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 Ericsson Mobile Platforms Ab filed Critical Ericsson Mobile Platforms Ab
Application granted granted Critical
Publication of ATE271277T1 publication Critical patent/ATE271277T1/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

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)
AT00971382T 1999-10-26 2000-10-16 Adaptive linearisierung von leistungsverstärkern ATE271277T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/427,773 US6246286B1 (en) 1999-10-26 1999-10-26 Adaptive linearization of power amplifiers
PCT/EP2000/010139 WO2001031778A1 (en) 1999-10-26 2000-10-16 Adaptive linearization of power amplifiers

Publications (1)

Publication Number Publication Date
ATE271277T1 true ATE271277T1 (de) 2004-07-15

Family

ID=23696216

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00971382T ATE271277T1 (de) 1999-10-26 2000-10-16 Adaptive linearisierung von leistungsverstärkern

Country Status (8)

Country Link
US (1) US6246286B1 (de)
EP (1) EP1224733B1 (de)
JP (1) JP2003513498A (de)
CN (1) CN1218475C (de)
AT (1) ATE271277T1 (de)
AU (1) AU1025401A (de)
DE (1) DE60012209T2 (de)
WO (1) WO2001031778A1 (de)

Families Citing this family (150)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI990680A (fi) * 1999-03-26 2000-09-27 Nokia Networks Oy I/Q-modulaattorin epälineaarisuuden korjaus
IT1313906B1 (it) * 1999-06-15 2002-09-26 Cit Alcatel Precorrezione digitale adattiva di non-linearita' introdotte daamplicatori di potenza.
US6342810B1 (en) * 1999-07-13 2002-01-29 Pmc-Sierra, Inc. Predistortion amplifier system with separately controllable amplifiers
US6515712B1 (en) * 1999-07-31 2003-02-04 Lg Information & Communications, Ltd. Signal distortion compensating apparatus and method in digital TV translator
DE19956073C2 (de) * 1999-11-22 2002-03-28 Infineon Technologies Ag Modulationsanordnung
DE19959403A1 (de) * 1999-12-09 2001-06-13 Rohde & Schwarz Anordnung zum Regeln der Ausgangsleistung eines HF-Senders
US6449465B1 (en) * 1999-12-20 2002-09-10 Motorola, Inc. Method and apparatus for linear amplification of a radio frequency signal
US6421397B1 (en) * 2000-01-28 2002-07-16 Alcatel Canada Inc. Modulation system having on-line IQ calibration
US6421398B1 (en) 2000-01-28 2002-07-16 Alcatel Canada Inc. Modulation system having on-line IQ calibration
US6831954B1 (en) * 2000-02-01 2004-12-14 Nokia Corporation Apparatus, and associated method, for compensating for distortion introduced upon a send signal by an amplifier
US6687311B1 (en) * 2000-02-15 2004-02-03 General Instrument Corporation Direct QAM modulator with digital feedback control and complex pre-equalization for phase and amplitude distortion
GB2359432B (en) * 2000-02-17 2002-07-03 Wireless Systems Int Ltd Signal detection
CN1193511C (zh) * 2000-03-21 2005-03-16 皇家菲利浦电子有限公司 具有单独本地振荡器的调频通信***
CN1252910C (zh) * 2000-10-17 2006-04-19 艾利森电话股份有限公司 通信***
US7471935B2 (en) * 2000-10-23 2008-12-30 Intel Corporation Automatic level control
KR100446500B1 (ko) * 2001-03-19 2004-09-04 삼성전자주식회사 비선형 왜곡 보상 방법 및 비선형 왜곡 보상 회로
US7035345B2 (en) * 2001-06-08 2006-04-25 Polyvalor S.E.C. Adaptive predistortion device and method using digital receiver
US7088958B2 (en) * 2001-06-19 2006-08-08 Intersil Americas Inc. Remote power amplifier linearization
SE520466C2 (sv) * 2001-11-12 2003-07-15 Ericsson Telefon Ab L M Metod och anordning vid en digital linjäriseringskoppling
US7058139B2 (en) * 2001-11-16 2006-06-06 Koninklijke Philips Electronics N.V. Transmitter with transmitter chain phase adjustment on the basis of pre-stored phase information
KR100438551B1 (ko) * 2001-11-17 2004-07-03 엘지전자 주식회사 기지국 수신기의 수신신호 세기 검출 장치 및 방법
US6750709B2 (en) * 2001-11-30 2004-06-15 The Boeing Company Bipolar transistor-based linearizer with programmable gain and phase response system
US6885241B2 (en) * 2002-03-26 2005-04-26 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Industry Type-based baseband predistorter function estimation technique for non-linear circuits
US6853246B2 (en) * 2002-04-18 2005-02-08 Agere Systems Inc. Adaptive predistortion system and a method of adaptively predistorting a signal
FI20020820A0 (fi) * 2002-04-30 2002-04-30 Nokia Corp Menetelmä signaalin rajoittamiseksi ja lähetin
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
US8811917B2 (en) 2002-05-01 2014-08-19 Dali Systems Co. Ltd. Digital hybrid mode power amplifier system
US8380143B2 (en) 2002-05-01 2013-02-19 Dali Systems Co. Ltd Power amplifier time-delay invariant predistortion methods and apparatus
JP3502087B2 (ja) * 2002-05-14 2004-03-02 松下電器産業株式会社 ハイブリッド歪補償方法およびハイブリッド歪補償装置
US7801244B2 (en) * 2002-05-16 2010-09-21 Rf Micro Devices, Inc. Am to AM correction system for polar modulator
US7991071B2 (en) * 2002-05-16 2011-08-02 Rf Micro Devices, Inc. AM to PM correction system for polar modulator
US7194043B2 (en) * 2002-05-31 2007-03-20 Lucent Technologies Inc. System and method for predistorting a signal to reduce out-of-band error
US7269231B2 (en) * 2002-05-31 2007-09-11 Lucent Technologies Inc. System and method for predistorting a signal using current and past signal samples
US20040057533A1 (en) * 2002-09-23 2004-03-25 Kermalli Munawar Hussein System and method for performing predistortion at intermediate frequency
JP4142384B2 (ja) * 2002-10-01 2008-09-03 松下電器産業株式会社 送信装置
US7756421B2 (en) * 2002-10-03 2010-07-13 Ciena Corporation Electrical domain compensation of non-linear effects in an optical communications system
US7245183B2 (en) * 2002-11-14 2007-07-17 M/A-Com Eurotec Bv Apparatus, methods and articles of manufacture for processing an electromagnetic wave
US7298854B2 (en) * 2002-12-04 2007-11-20 M/A-Com, Inc. Apparatus, methods and articles of manufacture for noise reduction in electromagnetic signal processing
US7187231B2 (en) * 2002-12-02 2007-03-06 M/A-Com, Inc. Apparatus, methods and articles of manufacture for multiband signal processing
US7526260B2 (en) * 2002-11-14 2009-04-28 M/A-Com Eurotec, B.V. Apparatus, methods and articles of manufacture for linear signal modification
US7203262B2 (en) 2003-05-13 2007-04-10 M/A-Com, Inc. Methods and apparatus for signal modification in a fractional-N phase locked loop system
US6891432B2 (en) * 2002-11-14 2005-05-10 Mia-Com, Inc. Apparatus, methods and articles of manufacture for electromagnetic processing
US6924699B2 (en) * 2003-03-06 2005-08-02 M/A-Com, Inc. Apparatus, methods and articles of manufacture for digital modification in electromagnetic signal processing
US7545865B2 (en) * 2002-12-03 2009-06-09 M/A-Com, Inc. Apparatus, methods and articles of manufacture for wideband signal processing
US20040070454A1 (en) * 2002-10-15 2004-04-15 Triquint Semiconductor, Inc. Continuous bias circuit and method for an amplifier
US7010284B2 (en) * 2002-11-06 2006-03-07 Triquint Semiconductor, Inc. Wireless communications device including power detector circuit coupled to sample signal at interior node of amplifier
US20040072554A1 (en) * 2002-10-15 2004-04-15 Triquint Semiconductor, Inc. Automatic-bias amplifier circuit
US7277678B2 (en) * 2002-10-28 2007-10-02 Skyworks Solutions, Inc. Fast closed-loop power control for non-constant envelope modulation
US6859098B2 (en) 2003-01-17 2005-02-22 M/A-Com, Inc. Apparatus, methods and articles of manufacture for control in an electromagnetic processor
US7805115B1 (en) * 2003-06-02 2010-09-28 Analog Devices, Inc. Variable filter systems and methods for enhanced data rate communication systems
US7720171B2 (en) * 2003-06-13 2010-05-18 Alcatel-Lucent Usa Inc. Coefficient estimation method and apparatus
US7026871B2 (en) * 2003-07-03 2006-04-11 Icefyre Semiconductor, Inc. Adaptive predistortion for a transmit system
WO2005004323A1 (en) 2003-07-03 2005-01-13 Icefyre Semiconductor Corporation Adaptive predistortion for a transmit system
US6975167B2 (en) * 2003-07-03 2005-12-13 Icefyre Semiconductor Corporation Adaptive predistortion for a transmit system with gain, phase and delay adjustments
US7453952B2 (en) 2003-07-03 2008-11-18 Saed Aryan Predistortion circuit for a transmit system
US7409193B2 (en) * 2003-07-03 2008-08-05 Zarbana Digital Fund Llc Predistortion circuit for a transmit system
JP3844352B2 (ja) * 2003-08-07 2006-11-08 松下電器産業株式会社 送信装置
US7480511B2 (en) * 2003-09-19 2009-01-20 Trimble Navigation Limited Method and system for delivering virtual reference station data
US7091778B2 (en) * 2003-09-19 2006-08-15 M/A-Com, Inc. Adaptive wideband digital amplifier for linearly modulated signal amplification and transmission
US6882221B2 (en) * 2003-09-22 2005-04-19 Northrop Grumman Corporation Digital predistortion for power amplifier
US7023273B2 (en) * 2003-10-06 2006-04-04 Andrew Corporation Architecture and implementation methods of digital predistortion circuitry
KR100518456B1 (ko) * 2003-10-10 2005-09-30 학교법인 포항공과대학교 전력 증폭기의 선형화를 위한 디지털 피드백 선형화 장치및 방법
US7146138B2 (en) * 2003-10-21 2006-12-05 Kiomars Anvari Power boosting technique for wireless multi-carrier power amplifier
US7343138B2 (en) * 2003-12-08 2008-03-11 M/A-Com, Inc. Compensating for load pull in electromagentic signal propagation using adaptive impedance matching
US7305041B2 (en) * 2004-02-20 2007-12-04 Kiomars Anvari Peak suppression of multi-carrier signal with different modulation
DE102004019984B4 (de) 2004-04-23 2006-06-29 Infineon Technologies Ag Einrichtung zur Verarbeitung von Funk-Sendedaten mit einer digitalen Vorverzerrung
US7551686B1 (en) 2004-06-23 2009-06-23 Rf Micro Devices, Inc. Multiple polynomial digital predistortion
US20060050810A1 (en) * 2004-07-29 2006-03-09 Interdigital Technology Corporation Hybrid transmitter architecture having high efficiency and large dynamic range
US7529523B1 (en) 2004-08-23 2009-05-05 Rf Micro Devices, Inc. N-th order curve fit for power calibration in a mobile terminal
US7327803B2 (en) 2004-10-22 2008-02-05 Parkervision, Inc. Systems and methods for vector power amplification
US7355470B2 (en) 2006-04-24 2008-04-08 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioning
DE102004055934A1 (de) * 2004-11-19 2006-06-08 Siemens Ag Vorrichtung und Verfahren zur Korrektur von Stützpunkten einer Einhüllenden eines Hochfrequenzpulses
WO2006066448A1 (fr) * 2004-12-21 2006-06-29 Zte Corporation Procédé et dispositif de détection de grandeur de distorsion non linéaire de signal
US7193462B2 (en) * 2005-03-22 2007-03-20 Powerwave Technologies, Inc. RF power amplifier system employing an analog predistortion module using zero crossings
US8224265B1 (en) 2005-06-13 2012-07-17 Rf Micro Devices, Inc. Method for optimizing AM/AM and AM/PM predistortion in a mobile terminal
FI20055354A0 (fi) * 2005-06-29 2005-06-29 Nokia Corp Datankäsittelymenetelmä, lähetin, laite, verkkoelementti ja tukiasema
FI20055355A0 (fi) * 2005-06-29 2005-06-29 Nokia Corp Datankäsittelymenetelmä, esivääristysjärjestely, lähetin, verkkoelementti ja tukiasema
US7653147B2 (en) * 2005-08-17 2010-01-26 Intel Corporation Transmitter control
FR2890262B1 (fr) * 2005-08-30 2007-10-12 Thales Sa Procede et dispositif de controle de puissance crete et de largeur d'impulsion d'un emetteur de forte puissance rf impulsionnel gaussien large bande
WO2007046370A1 (ja) 2005-10-17 2007-04-26 Hitachi Kokusai Electric Inc. 非線形歪検出方法及び歪補償増幅装置
US7911272B2 (en) 2007-06-19 2011-03-22 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including blended control embodiments
US8013675B2 (en) 2007-06-19 2011-09-06 Parkervision, Inc. Combiner-less multiple input single output (MISO) amplification with blended control
US7877060B1 (en) 2006-02-06 2011-01-25 Rf Micro Devices, Inc. Fast calibration of AM/PM pre-distortion
US8195103B2 (en) * 2006-02-15 2012-06-05 Texas Instruments Incorporated Linearization of a transmit amplifier
US7856105B2 (en) * 2006-03-09 2010-12-21 Andrew Llc Apparatus and method for processing of amplifier linearization signals
US7962108B1 (en) 2006-03-29 2011-06-14 Rf Micro Devices, Inc. Adaptive AM/PM compensation
DE102006017515B3 (de) * 2006-04-13 2007-10-18 Infineon Technologies Ag Vorverzerrer, Verstärker und Verfahren
US7937106B2 (en) 2006-04-24 2011-05-03 ParkerVision, Inc, Systems and methods of RF power transmission, modulation, and amplification, including architectural embodiments of same
US8031804B2 (en) 2006-04-24 2011-10-04 Parkervision, Inc. Systems and methods of RF tower transmission, modulation, and amplification, including embodiments for compensating for waveform distortion
CN101479956B (zh) 2006-04-28 2013-07-31 大力***有限公司 用于无线通信的高效率线性化功率放大器
DE102006020831B4 (de) * 2006-05-04 2014-08-28 Siemens Aktiengesellschaft Regler für einen Hochfrequenzverstärker
US8315336B2 (en) 2007-05-18 2012-11-20 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including a switching stage embodiment
US8032336B2 (en) * 2006-09-29 2011-10-04 Netlogic Microsystems, Inc. Distortion cancellation using adaptive linearization
US8370113B2 (en) 2006-09-29 2013-02-05 Netlogic Microsystems, Inc. Low-power and low-cost adaptive self-linearization system with fast convergence
US8041757B2 (en) 2006-09-29 2011-10-18 Netlogic Microsystems, Inc. Low power and low complexity adaptive self-linearization
US7689182B1 (en) 2006-10-12 2010-03-30 Rf Micro Devices, Inc. Temperature compensated bias for AM/PM improvement
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
US7627293B2 (en) * 2006-12-28 2009-12-01 Alcatel-Lucent Usa Inc. Strategic predistortion function selection
US8009762B1 (en) 2007-04-17 2011-08-30 Rf Micro Devices, Inc. Method for calibrating a phase distortion compensated polar modulated radio frequency transmitter
US8274332B2 (en) * 2007-04-23 2012-09-25 Dali Systems Co. Ltd. N-way Doherty distributed power amplifier with power tracking
WO2008144049A1 (en) * 2007-05-18 2008-11-27 Optichron, Inc. Distortion cancellation using adaptive linearization
JP4986737B2 (ja) * 2007-06-26 2012-07-25 パナソニック株式会社 プリディストーション型歪補償増幅装置
WO2009005768A1 (en) 2007-06-28 2009-01-08 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
US8463189B2 (en) * 2007-07-31 2013-06-11 Texas Instruments Incorporated Predistortion calibration and built in self testing of a radio frequency power amplifier using subharmonic mixing
US8224266B2 (en) * 2007-08-30 2012-07-17 Dali Systems Co., Ltd. Power amplifier predistortion methods and apparatus using envelope and phase detector
US8238849B2 (en) * 2007-10-18 2012-08-07 Freescale Semiconductor, Inc. Method and system of adaptive predistortion of a wireless transmitter
WO2009109808A2 (en) 2007-12-07 2009-09-11 Dali Systems Co. Ltd. Baseband-derived rf digital predistortion
US8023588B1 (en) 2008-04-08 2011-09-20 Pmc-Sierra, Inc. Adaptive predistortion of non-linear amplifiers with burst data
JP2009278513A (ja) * 2008-05-16 2009-11-26 Mitsubishi Electric Corp 送信機
WO2009145887A1 (en) 2008-05-27 2009-12-03 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
CN101603992B (zh) * 2008-06-12 2011-06-29 深圳富泰宏精密工业有限公司 功率放大器输出功率对照表的建立方法
CN101656512B (zh) * 2008-08-18 2012-06-27 富士通株式会社 功率放大器非线性程度度量装置、方法和预失真补偿装置
JP5338378B2 (ja) * 2009-03-02 2013-11-13 富士通株式会社 歪補償装置及び方法
BRPI0924414A2 (pt) 2009-03-09 2016-01-26 Zte Wistron Telecom Ab "método e aparelho para linearização de um amplificador de potência não linear"
JP5383274B2 (ja) * 2009-03-26 2014-01-08 三菱電機株式会社 歪み補償システム
US8489042B1 (en) 2009-10-08 2013-07-16 Rf Micro Devices, Inc. Polar feedback linearization
US8730786B2 (en) 2009-12-21 2014-05-20 Dali Systems Co. Ltd. Remote radio head unit system with wideband power amplifier and method
CN106160674A (zh) 2009-12-21 2016-11-23 大力***有限公司 用于改善发射机与接收机之间的隔离的***
US8542768B2 (en) 2009-12-21 2013-09-24 Dali Systems Co. Ltd. High efficiency, remotely reconfigurable remote radio head unit system and method for wireless communications
US8351877B2 (en) 2010-12-21 2013-01-08 Dali Systems Co. Ltfd. Multi-band wideband power amplifier digital predistorition system and method
US8718576B2 (en) * 2010-02-11 2014-05-06 Mediatek Inc. Radio frequency modulator and method thereof
US8937762B2 (en) 2010-04-20 2015-01-20 Fujitsu Limited Level control circuit, level control method, and level control system
TWI407686B (zh) * 2010-06-11 2013-09-01 Realtek Semiconductor Corp 應用於功率放大器之補償裝置、決定功率放大器之預失真值的方法以及補償功率放大器之線性度的方法
CN105208083B (zh) 2010-09-14 2018-09-21 大力***有限公司 用于发送信号的***和分布式天线***
WO2012083546A1 (en) * 2010-12-23 2012-06-28 Huawei Technologies Co., Ltd. Signal processing arrangement and signal processing method
US20120195392A1 (en) * 2011-02-02 2012-08-02 Provigent Ltd. Predistortion in split-mount wireless communication systems
KR20140026458A (ko) 2011-04-08 2014-03-05 파커비전, 인크. Ｒｆ 전력 송신, 변조 및 증폭 시스템들 및 방법들
WO2012167111A2 (en) 2011-06-02 2012-12-06 Parkervision, Inc. Antenna control
CN102882478B (zh) * 2011-07-15 2016-03-16 瑞昱半导体股份有限公司 功率放大器的补偿装置及其相关方法
US9093958B2 (en) * 2011-10-20 2015-07-28 Mediatek Singapore Pte. Ltd. Predistortion circuit, wireless communication unit and method for coefficient estimation
JP5811929B2 (ja) * 2012-03-30 2015-11-11 富士通株式会社 無線装置、歪補償方法、及び歪補償プログラム
KR101389880B1 (ko) * 2012-10-31 2014-05-07 한국과학기술원 포락선 검출 궤환 방식의 저비용 디지털 전치왜곡 장치 및 그 방법
JP6098178B2 (ja) * 2013-01-17 2017-03-22 富士通株式会社 増幅装置、歪補償装置および歪補償方法
US9729110B2 (en) * 2013-03-27 2017-08-08 Qualcomm Incorporated Radio-frequency device calibration
CN103401511A (zh) * 2013-07-05 2013-11-20 华南理工大学 一种用于实时性***的功放预失真方法
US9306507B2 (en) * 2013-07-12 2016-04-05 Intel Deutschland Gmbh Controller and method for controlling a signal processor
EP3047348A4 (de) 2013-09-17 2016-09-07 Parkervision Inc Verfahren, vorrichtung und system für die darstellung einer datenträgerzeitfunktion
CN103685111B (zh) * 2013-12-26 2017-01-11 大唐移动通信设备有限公司 一种数字预失真参数的求取方法及预失真***
JP6330594B2 (ja) * 2014-09-12 2018-05-30 株式会社デンソー フィルタ装置及び物標検出装置
CN105577298B (zh) * 2014-11-05 2018-10-16 辰芯科技有限公司 一种自适应相位检测方法及***
CN114710122A (zh) 2015-08-14 2022-07-05 维尔塞特公司 数字动态偏置电路
CN107046445B (zh) * 2016-02-06 2020-07-28 富士通株式会社 谐波失真分离方法、非线性特性确定方法、装置和***
EP3306817B8 (de) * 2016-10-07 2021-04-21 Rohde & Schwarz GmbH & Co. KG Vorverzerrungssystem und -verfahren
JP2018074198A (ja) * 2016-10-24 2018-05-10 富士通株式会社 演算方法、基地局装置および演算回路
US9876657B1 (en) * 2017-03-06 2018-01-23 Xilinx, Inc. System and method for downlink processing in communication systems
US10374838B2 (en) * 2017-06-30 2019-08-06 Futurewei Technologies, Inc. Image distortion correction in a wireless terminal
US20200244509A1 (en) * 2019-01-28 2020-07-30 Qualcomm Incorporated In-phase and quadrature-phase estimation and correction using kernel analysis
JP7193652B2 (ja) * 2019-08-27 2022-12-20 株式会社日立国際電気 歪補償回路、無線装置

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4462001A (en) * 1982-02-22 1984-07-24 Canadian Patents & Development Limited Baseband linearizer for wideband, high power, nonlinear amplifiers
US4485349A (en) * 1983-04-08 1984-11-27 Varian Associates, Inc. Stabilized microwave power amplifier system
JPS6278902A (ja) * 1985-10-01 1987-04-11 Nec Corp 線形化回路付高出力増幅器
US4999583A (en) * 1990-02-28 1991-03-12 Hughes Aircraft Company Amplifier drive controller
US5049832A (en) * 1990-04-20 1991-09-17 Simon Fraser University Amplifier linearization by adaptive predistortion
EP0513402A1 (de) 1991-04-24 1992-11-19 Thomcast Ag Verfahren zur Kompensation von Nichtlinearitäten einer Verstärkerschaltung mit ausgeprägter Signaldurchlaufszeit
JPH05218752A (ja) * 1992-02-03 1993-08-27 Hitachi Ltd 線形電力増幅装置
DE69324210T2 (de) * 1992-11-16 1999-08-05 Linear Modulation Tech Automatische Kalibrierung der Quadraturbalance in einem kartesischen Verstärker
GB9316869D0 (en) 1993-08-13 1993-09-29 Philips Electronics Uk Ltd Transmitter and power amplifier therefor
IT1265271B1 (it) 1993-12-14 1996-10-31 Alcatel Italia Sistema di predistorsione in banda base per la linearizzazione adattativa di amplificatori di potenza
GB2287595B (en) 1994-03-09 1997-03-05 Motorola Ltd Method for amplitude training in a linear power amplifier
GB2287371B (en) 1994-03-11 1998-12-16 Motorola Israel Ltd Radio transmitter power amplifier calibration
JP3268135B2 (ja) * 1994-09-06 2002-03-25 株式会社日立国際電気 無線機
US5870668A (en) * 1995-08-18 1999-02-09 Fujitsu Limited Amplifier having distortion compensation and base station for radio communication using the same
JP3560398B2 (ja) * 1995-08-31 2004-09-02 富士通株式会社 歪補償を有する増幅器
US5903823A (en) * 1995-09-19 1999-05-11 Fujitsu Limited Radio apparatus with distortion compensating function
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
US5892397A (en) 1996-03-29 1999-04-06 Spectrian Adaptive compensation of RF amplifier distortion by injecting predistortion signal derived from respectively different functions of input signal amplitude
US5760646A (en) * 1996-03-29 1998-06-02 Spectrian Feed-forward correction loop with adaptive predistortion injection for linearization of RF power amplifier
JPH1022756A (ja) * 1996-07-04 1998-01-23 Mitsubishi Electric Corp 無線送信機およびその送信制御方法
US5898338A (en) * 1996-09-20 1999-04-27 Spectrian Adaptive digital predistortion linearization and feed-forward correction of RF power amplifier
US5850162A (en) * 1997-02-20 1998-12-15 Harris Corporation Linearization of an amplifier employing modified feedforward correction
JP3865336B2 (ja) * 1997-10-21 2007-01-10 株式会社ケンウッド 高周波電力増幅器
JPH11136302A (ja) * 1997-10-29 1999-05-21 Fujitsu Ltd 歪補償回路
JPH11243430A (ja) * 1998-02-25 1999-09-07 Sumitomo Electric Ind Ltd 直交変調器
US6275685B1 (en) * 1998-12-10 2001-08-14 Nortel Networks Limited Linear amplifier arrangement

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US6246286B1 (en) 2001-06-12
DE60012209T2 (de) 2005-08-18
CN1384996A (zh) 2002-12-11
AU1025401A (en) 2001-05-08
DE60012209D1 (de) 2004-08-19
WO2001031778A1 (en) 2001-05-03
EP1224733B1 (de) 2004-07-14
EP1224733A1 (de) 2002-07-24
JP2003513498A (ja) 2003-04-08
CN1218475C (zh) 2005-09-07

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