FI982738A - Lähettimen linearisointi - Google Patents

Lähettimen linearisointi Download PDF

Info

Publication number
FI982738A
FI982738A FI982738A FI982738A FI982738A FI 982738 A FI982738 A FI 982738A FI 982738 A FI982738 A FI 982738A FI 982738 A FI982738 A FI 982738A FI 982738 A FI982738 A FI 982738A
Authority
FI
Finland
Prior art keywords
transmitter linearization
linearization
transmitter
Prior art date
Application number
FI982738A
Other languages
English (en)
Swedish (sv)
Other versions
FI982738A0 (fi
Inventor
Mikko Huttunen
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
Priority to FI982738A priority Critical patent/FI982738A/fi
Publication of FI982738A0 publication Critical patent/FI982738A0/fi
Priority to JP2000588938A priority patent/JP2002533022A/ja
Priority to PCT/FI1999/001051 priority patent/WO2000036800A2/en
Priority to BR9916227-0A priority patent/BR9916227A/pt
Priority to EP99963619A priority patent/EP1151532A2/en
Priority to CN99814593.9A priority patent/CN1330808A/zh
Priority to AU19860/00A priority patent/AU1986000A/en
Publication of FI982738A publication Critical patent/FI982738A/fi
Priority to US09/881,335 priority patent/US7062233B2/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
    • H04L27/367—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion
    • H04L27/368—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion adaptive predistortion

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
FI982738A 1998-12-17 1998-12-17 Lähettimen linearisointi FI982738A (fi)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FI982738A FI982738A (fi) 1998-12-17 1998-12-17 Lähettimen linearisointi
JP2000588938A JP2002533022A (ja) 1998-12-17 1999-12-16 送信器の線形化
PCT/FI1999/001051 WO2000036800A2 (en) 1998-12-17 1999-12-16 Transmitter linearization
BR9916227-0A BR9916227A (pt) 1998-12-17 1999-12-16 Processo para definir parâmetros de correção usados na linearização de transmissão executado por um método de predistorção, e, transmissor
EP99963619A EP1151532A2 (en) 1998-12-17 1999-12-16 Transmitter linearization
CN99814593.9A CN1330808A (zh) 1998-12-17 1999-12-16 发射机线性化
AU19860/00A AU1986000A (en) 1998-12-17 1999-12-16 Transmitter linearization
US09/881,335 US7062233B2 (en) 1998-12-17 2001-06-14 Transmitter linearization

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI982738A FI982738A (fi) 1998-12-17 1998-12-17 Lähettimen linearisointi

Publications (2)

Publication Number Publication Date
FI982738A0 FI982738A0 (fi) 1998-12-17
FI982738A true FI982738A (fi) 2000-06-18

Family

ID=8553142

Family Applications (1)

Application Number Title Priority Date Filing Date
FI982738A FI982738A (fi) 1998-12-17 1998-12-17 Lähettimen linearisointi

Country Status (8)

Country Link
US (1) US7062233B2 (fi)
EP (1) EP1151532A2 (fi)
JP (1) JP2002533022A (fi)
CN (1) CN1330808A (fi)
AU (1) AU1986000A (fi)
BR (1) BR9916227A (fi)
FI (1) FI982738A (fi)
WO (1) WO2000036800A2 (fi)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
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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
US7382833B1 (en) * 2001-08-16 2008-06-03 Rockwell Collins, Inc. System for phase, gain, and DC offset error correction for a quadrature modulator
KR100408043B1 (ko) * 2001-09-21 2003-12-01 엘지전자 주식회사 디지탈 아이에프 기술을 적용한 전치 왜곡 방식의 디지털선형화기
US20030096588A1 (en) * 2001-11-20 2003-05-22 Vanderhelm Ronald J. Receiver intermod enhancer
US20050143025A1 (en) * 2002-06-19 2005-06-30 Masayoshi Suzuki Transmitting apparatus
FR2846812B1 (fr) * 2002-11-05 2005-01-28 Eads Defence & Security Ntwk Perfectionnement aux procedes et dispositifs d'apprentissage d'un dispositif de linearisation d'un amplificateur rf
FR2846813B1 (fr) * 2002-11-05 2005-01-28 Eads Defence & Security Ntwk Procede et dispositif d'apprentissage d'un dispositif de linearisation d'un amplificateur rf, et terminal mobile incorporant un tel dispositif
GB2395843B (en) * 2002-11-29 2006-04-26 Motorola Inc Wireless subscriber communication unit and antenna arrangement therefor
US7206355B2 (en) * 2002-12-02 2007-04-17 Nortel Networks Limited Digitally convertible radio
JP4175503B2 (ja) * 2003-04-18 2008-11-05 ソニー・エリクソン・モバイルコミュニケーションズ株式会社 歪み補償回路及び送信装置
US7280612B2 (en) * 2003-07-25 2007-10-09 Zarbana Digital Fund Llc Digital branch calibrator for an RF transmitter
GB2407929A (en) * 2003-11-05 2005-05-11 Motorola Inc A predistorter for a polar transmitter, using look-up tables and interpolation, and possessing a simple training procedure.
JP4417174B2 (ja) * 2004-05-19 2010-02-17 株式会社日立国際電気 プリディストータ
EP1776819B1 (en) * 2004-07-29 2014-12-31 Nxp B.V. Complex signal scaling for phase and/or amplitude modulated signals
JP4284630B2 (ja) 2004-09-21 2009-06-24 株式会社日立国際電気 歪補償増幅装置
JP4702362B2 (ja) * 2004-09-29 2011-06-15 日本電気株式会社 ミキサのためのエラー計算回路
US7570201B1 (en) * 2004-11-05 2009-08-04 Northrop Grumman Corporation Radar exciter including phase compensation of the waveform generator
DE102005006660B3 (de) * 2005-02-14 2006-11-16 Siemens Audiologische Technik Gmbh Verfahren zum Einstellen eines Hörhilfsgeräts, Hörhilfsgerät und mobile Ansteuervorrichtung zur Einstellung eines Hörhilfsgeräts sowie Verfahren zur automatischen Einstellung
JP4582360B2 (ja) * 2005-08-19 2010-11-17 日本電気株式会社 変調器のための１ビット信号変換を用いるｄｃオフセット除去回路
US7466197B2 (en) * 2005-11-15 2008-12-16 Alcatel-Lucent Usa Inc. Selecting samples for amplifier digital predistortion estimation
US7756491B2 (en) * 2006-08-04 2010-07-13 Axiom Microdevices, Inc. Phase shifter
US7689180B2 (en) * 2007-05-15 2010-03-30 Sige Semiconductor Inc. Method and apparatus for a cartesian error feedback circuit to correct distortion within a power amplifier
US8682315B2 (en) * 2007-08-23 2014-03-25 Texas Instruments Incorporated Predistortion system and method based on look up table interpolation
EP2194684B1 (en) 2007-09-26 2012-12-19 Fujitsu Limited Transmitter-receiver amplifier and method for compensating delay deviation
CN100578922C (zh) 2007-12-17 2010-01-06 华为技术有限公司 高效功率放大器
CN101414804B (zh) * 2008-09-18 2010-05-12 北京创毅视讯科技有限公司 功率放大器非线性校正方法、装置和功率放大器
US7876261B1 (en) * 2008-10-28 2011-01-25 Lockheed Martin Corporation Reflected wave clock synchronization
JP5121691B2 (ja) * 2008-12-22 2013-01-16 株式会社東芝 歪補償器、送信機、歪補償方法
ES2532407T3 (es) 2009-04-29 2015-03-26 Covidien Lp Dispositivos para cortar y raspar tejido
US8774314B2 (en) * 2009-06-23 2014-07-08 Qualcomm Incorporated Transmitter architectures
US20100327932A1 (en) * 2009-06-26 2010-12-30 Qualcomm Incorporated Feedback system with improved stability
FR2947411B1 (fr) * 2009-06-30 2015-02-13 Thales Sa Generateur d'un signal radiofrequence module de forte puissance, procede de calibration du generateur et systeme d'imagerie par resonance magnetique
US20110143697A1 (en) * 2009-12-11 2011-06-16 Qualcomm Incorporated Separate i and q baseband predistortion in direct conversion transmitters
US8880010B2 (en) * 2009-12-30 2014-11-04 Qualcomm Incorporated Dual-loop transmit noise cancellation
US20110250853A1 (en) * 2010-04-09 2011-10-13 Andrea Camuffo Operating point setting of an amplifier
CN102739571B (zh) * 2011-04-12 2016-01-13 中兴通讯股份有限公司 接收端iq路数据的校准方法、装置及系统
CN106537862A (zh) * 2014-04-30 2017-03-22 华为技术有限公司 一种预失真系统和方法
WO2019106826A1 (ja) 2017-12-01 2019-06-06 三菱電機株式会社 カルテシアンフィードバック回路
US10454509B2 (en) 2018-03-13 2019-10-22 Qualcomm Incorporated Communication circuit including a transmitter
US11381328B2 (en) * 2019-09-24 2022-07-05 Cypress Semiconductor Corporation Detection of variation in load impedance of wireless communications devices

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0771118B2 (ja) * 1989-12-27 1995-07-31 三菱電機株式会社 変調装置
US5252930A (en) * 1989-09-07 1993-10-12 Ortel Corporation Predistorter for linearization of electronic and optical signals
US5049832A (en) * 1990-04-20 1991-09-17 Simon Fraser University Amplifier linearization by adaptive predistortion
IT1265271B1 (it) * 1993-12-14 1996-10-31 Alcatel Italia Sistema di predistorsione in banda base per la linearizzazione adattativa di amplificatori di potenza
JP2967699B2 (ja) * 1995-03-06 1999-10-25 日本電気株式会社 送信装置
KR100251561B1 (ko) * 1997-06-19 2000-04-15 윤종용 디지털통신시스템의송신기선형화장치및방법
US6081158A (en) * 1997-06-30 2000-06-27 Harris Corporation Adaptive pre-distortion apparatus for linearizing an amplifier output within a data transmission system
US6054894A (en) * 1998-06-19 2000-04-25 Datum Telegraphic Inc. Digital control of a linc linear power amplifier
US6519010B2 (en) * 1998-06-26 2003-02-11 Harris Corporation Broadcast transmission system with sampling and correction arrangement for correcting distortion caused by amplifying and signal conditioning components
KR100326176B1 (ko) 1998-08-06 2002-04-17 윤종용 이동통신시스템의전력증폭장치및방법

Also Published As

Publication number Publication date
AU1986000A (en) 2000-07-03
FI982738A0 (fi) 1998-12-17
CN1330808A (zh) 2002-01-09
WO2000036800A2 (en) 2000-06-22
US7062233B2 (en) 2006-06-13
WO2000036800A3 (en) 2000-09-14
EP1151532A2 (en) 2001-11-07
BR9916227A (pt) 2001-10-02
JP2002533022A (ja) 2002-10-02
US20020016154A1 (en) 2002-02-07

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