DE69836330D1 - Adaptive digitale vorverzerrungsvorrichtung zur linearisierung eines leistungsverstärkers für digitalen rundfunk - Google Patents

Adaptive digitale vorverzerrungsvorrichtung zur linearisierung eines leistungsverstärkers für digitalen rundfunk

Info

Publication number
DE69836330D1
DE69836330D1 DE69836330T DE69836330T DE69836330D1 DE 69836330 D1 DE69836330 D1 DE 69836330D1 DE 69836330 T DE69836330 T DE 69836330T DE 69836330 T DE69836330 T DE 69836330T DE 69836330 D1 DE69836330 D1 DE 69836330D1
Authority
DE
Germany
Prior art keywords
digital
precording
linearizing
power amplifier
adaptive
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE69836330T
Other languages
English (en)
Other versions
DE69836330T2 (de
Inventor
Ray Twitchell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harris Corp
Original Assignee
Harris Corp
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 Harris Corp filed Critical Harris Corp
Application granted granted Critical
Publication of DE69836330D1 publication Critical patent/DE69836330D1/de
Publication of DE69836330T2 publication Critical patent/DE69836330T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • 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
    • H03F1/3258—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits based on polynomial terms
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/57—Separate feedback of real and complex signals being present
    • 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

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Amplifiers (AREA)
  • Dc Digital Transmission (AREA)
DE69836330T 1997-07-23 1998-07-23 Adaptive digitale vorverzerrungsvorrichtung zur linearisierung eines leistungsverstärkers für digitalen rundfunk Expired - Lifetime DE69836330T2 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US5348297P 1997-07-23 1997-07-23
US53482P 1997-07-23
US09/105,824 US6285412B1 (en) 1997-07-23 1998-06-26 Adaptive pre-equalization apparatus for correcting linear distortion of a non-ideal data transmission system
US105824 1998-06-26
PCT/US1998/015014 WO1999005869A2 (en) 1997-07-23 1998-07-23 Adaptive pre-equalization apparatus for correcting linear distortion of a non-ideal data transmission system

Publications (2)

Publication Number Publication Date
DE69836330D1 true DE69836330D1 (de) 2006-12-14
DE69836330T2 DE69836330T2 (de) 2007-06-14

Family

ID=26731918

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69836330T Expired - Lifetime DE69836330T2 (de) 1997-07-23 1998-07-23 Adaptive digitale vorverzerrungsvorrichtung zur linearisierung eines leistungsverstärkers für digitalen rundfunk

Country Status (10)

Country Link
US (1) US6285412B1 (de)
EP (1) EP0998823B1 (de)
JP (1) JP2001511631A (de)
KR (1) KR100545461B1 (de)
CN (1) CN1268271A (de)
AU (1) AU752776B2 (de)
BR (1) BR9810788A (de)
CA (1) CA2297462C (de)
DE (1) DE69836330T2 (de)
WO (1) WO1999005869A2 (de)

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI103306B1 (fi) * 1997-03-17 1999-05-31 Nokia Telecommunications Oy Osoitteen muodostusmenetelmä ja järjestely
ID22693A (id) * 1998-02-06 1999-12-09 Zenith Electronics Corp Penyandi vsb dan modulator rf biaya rendah untuk memasok sinyal jalur alas vsb ke masukan rf dari penerima televisi digital
US6335767B1 (en) * 1998-06-26 2002-01-01 Harris Corporation Broadcast transmission system with distributed correction
GB2349994B (en) 1999-05-10 2003-06-04 Intek Global Technologies Ltd Apparatus for producing a radio-frequency signal
AU5631000A (en) * 1999-06-22 2001-01-09 Harris Corporation Companion nyquist filter and linear equalizer within a data transmission system
US6515712B1 (en) * 1999-07-31 2003-02-04 Lg Information & Communications, Ltd. Signal distortion compensating apparatus and method in digital TV translator
JP4256057B2 (ja) 1999-09-30 2009-04-22 株式会社東芝 非線形補償器
EP1089428B1 (de) * 1999-09-30 2006-08-09 Kabushiki Kaisha Toshiba Nichtlineare Korrekturvorrichtung
KR100386572B1 (ko) * 1999-12-24 2003-06-02 엘지전자 주식회사 디지털 티브이 중계 시스템
US6674808B1 (en) * 1999-12-28 2004-01-06 General Dynamics Decision Systems, Inc. Post-amplifier filter rejection equalization
US6639537B1 (en) * 2000-03-31 2003-10-28 Massachusetts Institute Of Technology Highly linear analog-to-digital conversion system and method thereof
US6600516B1 (en) * 2000-04-21 2003-07-29 Harris Corporation Digital RF transmitter system employing both digital pre-correction and analog pre-correction
KR100360273B1 (ko) * 2000-12-28 2002-11-09 엘지전자 주식회사 디지탈 티브이 중계기의 선형보상 적응 등화기 및 그의제어방법
GB2376583B (en) * 2001-06-15 2005-01-05 Wireless Systems Int Ltd Time alignment of signals
GB2376584B (en) 2001-06-15 2005-02-16 Wireless Systems Int Ltd Signal correction techniques
US6819938B2 (en) * 2001-06-26 2004-11-16 Qualcomm Incorporated System and method for power control calibration and a wireless communication device
KR100426215B1 (ko) * 2001-08-20 2004-04-06 엘지전자 주식회사 디지털 텔레비전 송신 시스템의 선형성 자동 보상 장치 및그 방법
US20030103578A1 (en) * 2001-12-04 2003-06-05 Yeh Alex C. Method and system for determining tap gain values for a transmit frequency domain equalizer to achieve unity power gain
US7103112B2 (en) * 2001-12-04 2006-09-05 Conexant, Inc. Transmit frequency domain equalizer
EP1318643B1 (de) * 2001-12-05 2007-05-02 Telefonaktiebolaget LM Ericsson (publ) Verfahren und Vorrichtung zur Durchführung einer adaptiven Vorverzerrung
JP3707549B2 (ja) * 2002-03-22 2005-10-19 日本電気株式会社 送信装置
GB2388983B (en) * 2002-05-24 2006-06-28 Wireless Systems Int Ltd Predistortion Control
US6674326B1 (en) 2002-06-17 2004-01-06 The Boeing Company Digitally controllable nonlinear pre-equalizer
KR100471592B1 (ko) * 2002-07-09 2005-03-10 한국전자통신연구원 전치 등화 장치, 이를 이용한 ｖｓｂ 전송 시스템 및 그전송 방법
AU2002317424A1 (en) * 2002-07-15 2004-02-02 Nokia Corporation Adaptive pre-equalization method and apparatus
KR20040025009A (ko) * 2002-09-18 2004-03-24 대한민국(전남대학교총장) 비터비와 연계한 격자구조 채널 등화기
US20050163249A1 (en) * 2004-01-27 2005-07-28 Crestcom, Inc. Predistortion circuit and method for compensating linear distortion in a digital RF communications transmitter
US7469491B2 (en) 2004-01-27 2008-12-30 Crestcom, Inc. Transmitter predistortion circuit and method therefor
US7430248B2 (en) * 2004-01-27 2008-09-30 Crestcom, Inc. Predistortion circuit and method for compensating nonlinear distortion in a digital RF communications transmitter
BRPI0507137A (pt) * 2004-01-27 2007-06-19 Crestcom Inc circuito de pré-distorção de transmissor e método para isto
US20050233712A1 (en) * 2004-04-16 2005-10-20 Thales Broadcast & Multimedia, Inc. Low-frequency signal correction circuit
US7782978B2 (en) * 2006-04-13 2010-08-24 Harris Corporation Phase correction of a constant envelope signal without introducing amplitude modulation
US7729419B1 (en) * 2006-11-24 2010-06-01 Kiomars Anvari Reconditioning equalizer filter using convolution
US7729420B1 (en) * 2006-11-24 2010-06-01 Kiomars Anvari Reconditioning equalizer filter for OFDM and non-OFDM signals
KR100967399B1 (ko) 2006-12-08 2010-07-02 한국전자통신연구원 디지털 방송 시스템에서 톤 신호를 이용한 역방향 경로보상 장치 및 그 방법
WO2008069580A1 (en) * 2006-12-08 2008-06-12 Electronics And Telecommunications Research Institute Apparatus and method for compensating feedback path distortion
US7724840B2 (en) * 2006-12-19 2010-05-25 Crestcom, Inc. RF transmitter with predistortion and method therefor
US20080285640A1 (en) * 2007-05-15 2008-11-20 Crestcom, Inc. RF Transmitter With Nonlinear Predistortion and Method Therefor
US8107572B1 (en) 2007-10-12 2012-01-31 Harris Corporation Communications system using adaptive filter for interference reduction
US8204164B1 (en) 2007-10-12 2012-06-19 Harris Corporation Communications system using adaptive filter and selected adaptive filter taps
US7860200B2 (en) * 2007-10-12 2010-12-28 Harris Corporation Communications system using adaptive filter that is selected based on output power
US8094763B1 (en) 2007-10-12 2012-01-10 Harris Corporation Communications system using adaptive filter with adaptive update gain
US8121236B1 (en) 2007-10-12 2012-02-21 Harris Corporation Communications system using adaptive filter circuit using parallel adaptive filters
US8098781B1 (en) 2007-10-12 2012-01-17 Harris Corporation Communications system using adaptive filter with normalization circuit
US7864835B2 (en) * 2007-10-12 2011-01-04 Harris Corporation Communications system using adaptive filter and variable delay before adaptive filter taps
US8064851B2 (en) * 2008-03-06 2011-11-22 Crestcom, Inc. RF transmitter with bias-signal-induced distortion compensation and method therefor
US8081722B1 (en) 2008-04-04 2011-12-20 Harris Corporation Communications system and device using simultaneous wideband and in-band narrowband operation and related method
TWI415459B (zh) * 2011-02-17 2013-11-11 Mstar Semiconductor Inc 類比電視信號接收電路及方法與相關之等化電路係數設定裝置及方法
CN102647568B (zh) * 2011-02-18 2015-04-22 晨星软件研发(深圳)有限公司 降低模拟电视信号接收中的信号失真的方法和电路
US10103908B1 (en) * 2016-05-12 2018-10-16 L3 Technologies Inc. Linear equalizers for outphasing amplification
US10411917B2 (en) * 2017-12-04 2019-09-10 Credo Technology Group Limited Linear feedback equalization
CN109542083B (zh) * 2018-11-16 2021-09-03 爱士惟新能源技术(江苏)有限公司 一种对数字控制系统的信号进行修正的方法、系统和终端

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4291277A (en) 1979-05-16 1981-09-22 Harris Corporation Adaptive predistortion technique for linearizing a power amplifier for digital data systems
US4435823A (en) 1980-12-29 1984-03-06 Harris Corporation Adaptive equalizer capable of linear and nonlinear weighting
US4412337A (en) 1981-11-04 1983-10-25 Motorola Inc. Power amplifier and envelope correction circuitry
US4700151A (en) 1985-03-20 1987-10-13 Nec Corporation Modulation system capable of improving a transmission system
US4947363A (en) 1988-12-12 1990-08-07 Motorola, Inc. Pipelined processor for implementing the least-mean-squares algorithm
FR2642243B1 (fr) 1989-01-24 1991-04-19 Labo Electronique Physique Circuit de predistorsion adaptative
US5049832A (en) 1990-04-20 1991-09-17 Simon Fraser University Amplifier linearization by adaptive predistortion
DE69310775T2 (de) 1993-07-09 1997-11-13 Edmunde Eugene Newhall Systeme mit erhöhter geschwindigkeit der informationsübertragung, welche eingebettete abtastmodulation und vorverzerrungsausgleich verwenden
US5489879A (en) 1995-02-16 1996-02-06 Seiko Communication Systems, Inc. Amplitude and phase error normalization of subcarrier generator
US5590121A (en) 1995-03-30 1996-12-31 Lucent Technologies Inc. Method and apparatus for adaptive filtering
US5751766A (en) * 1995-04-27 1998-05-12 Applied Signal Technology, Inc. Non-invasive digital communications test system
US5910965A (en) * 1995-06-30 1999-06-08 Harris Corporation Adaptive predistortion using over-the-hop feedback
US5748678A (en) * 1995-07-13 1998-05-05 Motorola, Inc. Radio communications apparatus
US5732333A (en) 1996-02-14 1998-03-24 Glenayre Electronics, Inc. Linear transmitter using predistortion
US5745006A (en) 1996-11-12 1998-04-28 Motorola, Inc. Method of compensating for distortion in an amplifier
US6054895A (en) * 1997-08-27 2000-04-25 Harris Corporation Apparatus and method for pre-distortion correction of a power amplifier stage
US6075411A (en) * 1997-12-22 2000-06-13 Telefonaktiebolaget Lm Ericsson Method and apparatus for wideband predistortion linearization
US5959500A (en) * 1998-01-26 1999-09-28 Glenayre Electronics, Inc. Model-based adaptive feedforward amplifier linearizer
US6104241A (en) * 1998-11-18 2000-08-15 Spectrian High efficiency feed-forward RF power amplifier with predistoration enchancement

Also Published As

Publication number Publication date
CA2297462C (en) 2008-01-22
US6285412B1 (en) 2001-09-04
KR20010022159A (ko) 2001-03-15
BR9810788A (pt) 2002-01-02
EP0998823A2 (de) 2000-05-10
WO1999005869A3 (en) 1999-04-08
JP2001511631A (ja) 2001-08-14
DE69836330T2 (de) 2007-06-14
WO1999005869A2 (en) 1999-02-04
EP0998823B1 (de) 2006-11-02
AU752776B2 (en) 2002-09-26
KR100545461B1 (ko) 2006-01-24
CA2297462A1 (en) 1999-02-04
AU8414298A (en) 1999-02-16
CN1268271A (zh) 2000-09-27

Similar Documents

Publication Publication Date Title
DE69836330D1 (de) Adaptive digitale vorverzerrungsvorrichtung zur linearisierung eines leistungsverstärkers für digitalen rundfunk
ATE184898T1 (de) Formaldehydfreie bindemittel für formkörper
DE19581530T1 (de) Verbessertes Material für Mundschutze
DE69934070D1 (de) Zustandanzeige für digitales Fernsehen
DE69909188D1 (de) Umhüllungsvorrichtung für Rundballen
DE69529165D1 (de) Verbesserte Vorrichtung zur Wunddrainage
DE59404711D1 (de) Modulationsverstärker für rundfunksender
DE69923038D1 (de) Verbindungsvorrichtung für metalische Gitterelementen
DE69535627D1 (de) Editiervorrichtung für videosignale
DE59813124D1 (de) Stampfgerät zur bodenverdichtung
FI974380A (fi) Menetelmä digitaalisen audiosignaalin siirtämiseksi
DE59804260D1 (de) Drossel zur funkentstörung
DE69733296D1 (de) Verstärkungsregelungsvorrichtung für einen linearen Leistungsverstärker
DE69728828D1 (de) Oberwellenverzerrungsmesssystem
DE69504192D1 (de) Anordnung zur digitalen durchführung einer divisionsoperation
DE50015549D1 (de) PC-System für Echtzeit- und Nicht-Echtzeitprogramme
DE69801695D1 (de) Digitale Schaltung zur Frequenzvervielfachung
ATE236555T1 (de) Steuerungseinrichtung für pantographische halterung
DE69515516D1 (de) Optionale einführungsvorrichtung für digital zu gebrauchenden tampon
DE69923911D1 (de) Vorrichtung zur Übertragung und Wiedergabe eines digitalen Audiosignales
DE69712849D1 (de) Höhenverstellung für Positionierungsvorrichtung
DE69523102D1 (de) Bearbeitungsvorrichtung für digitales Signal
DE69735079D1 (de) Gerät zur Korrektur eines Spurübergangssignals
DE59900337D1 (de) Herstellungsverfahren und -vorrichtung für gewickelte teigprodukte
DE69704430D1 (de) Zusammenstellung zur digitalen Audioverteilung

Legal Events

Date Code Title Description
8364 No opposition during term of opposition