FI964290A - Laite ja menetelmä kantataajuisen digitaalisen virhesignaalin muodostamiseksi adaptiivisessa esivääristimessä - Google Patents

Laite ja menetelmä kantataajuisen digitaalisen virhesignaalin muodostamiseksi adaptiivisessa esivääristimessä Download PDF

Info

Publication number
FI964290A
FI964290A FI964290A FI964290A FI964290A FI 964290 A FI964290 A FI 964290A FI 964290 A FI964290 A FI 964290A FI 964290 A FI964290 A FI 964290A FI 964290 A FI964290 A FI 964290A
Authority
FI
Finland
Prior art keywords
generating
error signal
baseband digital
digital error
predistortion device
Prior art date
Application number
FI964290A
Other languages
English (en)
Swedish (sv)
Other versions
FI964290A0 (fi
FI115576B (fi
Inventor
Robert Louis Palandech
Wayne Harl Bradley
George Francis Opas
James Edward Mitzlaff
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of FI964290A publication Critical patent/FI964290A/fi
Publication of FI964290A0 publication Critical patent/FI964290A0/fi
Application granted granted Critical
Publication of FI115576B publication Critical patent/FI115576B/fi

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
    • H03F1/3258—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits based on polynomial terms
    • 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
    • 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

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Amplifiers (AREA)
FI964290A 1995-02-28 1996-10-25 Laite ja menetelmä kantataajuisen digitaalisen virhesignaalin muodostamiseksi adaptiivisessa esivääristimessä FI115576B (fi)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US39525995 1995-02-28
US08/395,259 US5486789A (en) 1995-02-28 1995-02-28 Apparatus and method for providing a baseband digital error signal in an adaptive predistorter
US9516868 1995-12-21
PCT/US1995/016868 WO1996027236A1 (en) 1995-02-28 1995-12-21 Adaptive predistorter

Publications (3)

Publication Number Publication Date
FI964290A true FI964290A (fi) 1996-10-25
FI964290A0 FI964290A0 (fi) 1996-10-25
FI115576B FI115576B (fi) 2005-05-31

Family

ID=23562306

Family Applications (1)

Application Number Title Priority Date Filing Date
FI964290A FI115576B (fi) 1995-02-28 1996-10-25 Laite ja menetelmä kantataajuisen digitaalisen virhesignaalin muodostamiseksi adaptiivisessa esivääristimessä

Country Status (5)

Country Link
US (1) US5486789A (fi)
EP (1) EP0758501B1 (fi)
JP (1) JP3534414B2 (fi)
FI (1) FI115576B (fi)
WO (1) WO1996027236A1 (fi)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2967699B2 (ja) * 1995-03-06 1999-10-25 日本電気株式会社 送信装置
GB2301247A (en) * 1995-05-22 1996-11-27 Univ Bristol A cartesian loop transmitter amplifier
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
DE19635330A1 (de) * 1996-08-30 1998-03-12 Siemens Ag Verfahren und Anordnung zur modulatorindividuellen Kompensation von Gleichspannungs-Abweichungen eines Modulators
US5898338A (en) * 1996-09-20 1999-04-27 Spectrian Adaptive digital predistortion linearization and feed-forward correction of RF power amplifier
US5917373A (en) * 1997-06-30 1999-06-29 Harris Corporation Apparatus with reduced A/D dynamic range requirement in a compensating feedback system
US6081158A (en) * 1997-06-30 2000-06-27 Harris Corporation Adaptive pre-distortion apparatus for linearizing an amplifier output within a data transmission system
US6075411A (en) * 1997-12-22 2000-06-13 Telefonaktiebolaget Lm Ericsson Method and apparatus for wideband predistortion linearization
US6141541A (en) * 1997-12-31 2000-10-31 Motorola, Inc. Method, device, phone and base station for providing envelope-following for variable envelope radio frequency signals
US6600792B2 (en) * 1998-06-26 2003-07-29 Qualcomm Incorporated Predistortion technique for high power amplifiers
JP3570898B2 (ja) * 1998-08-24 2004-09-29 日本電気株式会社 プレディストーション回路
JP3185778B2 (ja) 1999-02-10 2001-07-11 日本電気株式会社 アクティブマトリクス型液晶表示装置、その製造方法及びその駆動方法
US6501805B1 (en) 1999-05-14 2002-12-31 Harris Corporation Broadcast transmission system with single correction filter for correcting linear and non-linear distortion
US6798843B1 (en) * 1999-07-13 2004-09-28 Pmc-Sierra, Inc. Wideband digital predistortion linearizer for nonlinear amplifiers
US6697436B1 (en) 1999-07-13 2004-02-24 Pmc-Sierra, Inc. Transmission antenna array system with predistortion
US6587514B1 (en) 1999-07-13 2003-07-01 Pmc-Sierra, Inc. Digital predistortion methods for wideband amplifiers
DE19944558C2 (de) * 1999-09-17 2002-10-10 Bosch Gmbh Robert Verfahren zum Senden von Funksignalen und Sender zum Versenden eines Funksignals
DE19962341C1 (de) * 1999-12-23 2001-08-23 Bosch Gmbh Robert Sender zum Versenden von Signalen über Funkkanäle und Verfahren zum Senden von Signalen über Funkkanäle
US6674808B1 (en) 1999-12-28 2004-01-06 General Dynamics Decision Systems, Inc. Post-amplifier filter rejection equalization
US6751447B1 (en) * 1999-12-30 2004-06-15 Samsung Electronics Cop., Ltd. Adaptive digital pre-distortion circuit using output reference signal and method of operation
US7068984B2 (en) * 2001-06-15 2006-06-27 Telefonaktiebolaget Lm Ericsson (Publ) Systems and methods for amplification of a communication signal
US7362821B1 (en) 2002-05-22 2008-04-22 Marvel International Ltd. Method and apparatus for amplifier linearization using adaptive predistortion
US7085330B1 (en) 2002-02-15 2006-08-01 Marvell International Ltd. Method and apparatus for amplifier linearization using adaptive predistortion
US6985704B2 (en) 2002-05-01 2006-01-10 Dali Yang System and method for digital memorized predistortion 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
US8811917B2 (en) * 2002-05-01 2014-08-19 Dali Systems Co. Ltd. Digital hybrid mode power amplifier system
EP1708360A1 (en) * 2005-03-30 2006-10-04 Siemens Aktiengesellschaft Method and apparatus for generating a high frequency signal
US7514482B2 (en) * 2005-07-25 2009-04-07 The Walman Optical Company Optical coating composition
US7680176B2 (en) * 2005-11-21 2010-03-16 Telefonaktiebolaget Lm Ericsson (Publ) Simplified generalized rake receiver method and apparatus
CN101479956B (zh) 2006-04-28 2013-07-31 大力系统有限公司 用于无线通信的高效率线性化功率放大器
US9026067B2 (en) * 2007-04-23 2015-05-05 Dali Systems Co. Ltd. Remotely reconfigurable power amplifier system and method
WO2008078195A2 (en) 2006-12-26 2008-07-03 Dali Systems Co., Ltd. Method and system for baseband predistortion linearization in multi-channel wideband communication systems
US8274332B2 (en) * 2007-04-23 2012-09-25 Dali Systems Co. Ltd. N-way Doherty distributed power amplifier with power tracking
JP5474764B2 (ja) * 2007-04-23 2014-04-16 ダリ システムズ カンパニー リミテッド Ｎウェイ分散電力増幅器
US8224266B2 (en) * 2007-08-30 2012-07-17 Dali Systems Co., Ltd. Power amplifier predistortion methods and apparatus using envelope and phase detector
EP2248255A4 (en) 2007-12-07 2014-05-28 Dali Systems Co Ltd DIGITAL PREDISTORSION RF DERIVED BASEBAND
US20090268678A1 (en) * 2008-04-24 2009-10-29 Fujitsu Limited Method and apparatus for automatic gain control in a mobile orthogonal frequency division multiple access (ofdma) network
US8498591B1 (en) 2009-08-21 2013-07-30 Marvell International Ltd. Digital Predistortion for nonlinear RF power amplifiers
US8699620B1 (en) 2010-04-16 2014-04-15 Marvell International Ltd. Digital Predistortion for nonlinear RF power amplifiers
CN103597807B (zh) 2010-09-14 2015-09-30 大理系统有限公司 远程可重新配置的分布式天线系统和方法
ITMO20120317A1 (it) * 2012-12-21 2014-06-22 Teko Telecom S P A Sistema e metodo per la predistorsione digitale in amplificatori di potenza, particolarmente per comunicazioni a radiofrequenza
US9160586B1 (en) 2013-07-24 2015-10-13 Marvell International Ltd. Method and apparatus for estimating and compensating for in-phase and quadrature (IQ) mismatch in a receiver of a wireless communication device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3900823A (en) * 1973-03-28 1975-08-19 Nathan O Sokal Amplifying and processing apparatus for modulated carrier signals
US4291277A (en) * 1979-05-16 1981-09-22 Harris Corporation Adaptive predistortion technique for linearizing a power amplifier for digital data systems
US4700151A (en) * 1985-03-20 1987-10-13 Nec Corporation Modulation system capable of improving a transmission system
US5049832A (en) * 1990-04-20 1991-09-17 Simon Fraser University Amplifier linearization by adaptive predistortion

Also Published As

Publication number Publication date
JPH09512692A (ja) 1997-12-16
EP0758501B1 (en) 2002-03-27
EP0758501A1 (en) 1997-02-19
WO1996027236A1 (en) 1996-09-06
JP3534414B2 (ja) 2004-06-07
US5486789A (en) 1996-01-23
FI964290A0 (fi) 1996-10-25
EP0758501A4 (en) 1998-05-20
FI115576B (fi) 2005-05-31

Similar Documents

Publication Publication Date Title
FI964290A (fi) Laite ja menetelmä kantataajuisen digitaalisen virhesignaalin muodostamiseksi adaptiivisessa esivääristimessä
FI961736A0 (fi) Menetelmä ja laite digitaalisen valintaan perustuvan monitietekniikan toteuttamiseksi
HK1033348A1 (en) A method and apparatus for an adjustable hinged detent for electronic apparatus
FI952186A0 (fi) Menetelmä ja piirijärjestely vastaanotetun signaalin käsittelemiseksi
FI964491A (fi) Menetelmä ja laite koherentin vastaanottimen siirtyneen taajuuden estimoimiseksi
FI20080081A (fi) Menetelmä ja laite digitaalisen tietoliikennekanavan testaamiseksi
EE9900107A (et) Meetod ja aparatuur ajajaotussignaalide genereerimiseks raadiosideseadmes
FI951918A (fi) Lähetin-vastaanotinlaite ja menetelmä kompleksien I/Q-signaalin synnyttämiseksi ja käsittelemiseksi
ZA964876B (en) Method and apparatus for amplifying a signal
FI953753A0 (fi) Menetelmä ja laite yhdistetyn aaltomuodon synnyttämiseksi
AU2861192A (en) Apparatus and method for electronic device for information services
US5170257B1 (en) Method and apparatus for calibrating halftone output from an image-setting device
AU1269101A (en) A method of checking the validity of a set of digital information, and a method and an apparatus for retrieving digital information from an information source
EP0490716A3 (en) Method and apparatus for correcting an induction log for dip effect and producing an output record medium reflecting the correction
DK0949992T3 (da) Apparat og fremgangsmåde til støbning af en åbningsindretning på et emballageblad
AU642222B2 (en) Method and apparatus for grading fruit
AU8224591A (en) Method and apparatus for digital communication
AU7145391A (en) Method and apparatus for sealing pipe perforations
PH31479A (en) Apparatus for generating a signal representative of total harmonic distortion in waveforms of an a/celectrical system.
FI951687A0 (fi) Menetelmä ja väline painotuotteiden pakkaamiseen
GB2250667B (en) An apparatus and method for removing distortion in a received signal
FI961753A (fi) Laite ja menetelmä signaalin muokkaamiseksi ja sen tehon säätämiseksi lähettimessä
FI942374A0 (fi) Menetelmä ja laitteisto PAM-moduloidun signaalin muodostamiseksi
GB9325263D0 (en) Method and apparatus for generating an output device control signal
FI104024B1 (fi) Menetelmä ja laitteisto signaalin käsittelemiseksi tietoliikennelaitteistossa

Legal Events

Date Code Title Description
FG Patent granted

Ref document number: 115576

Country of ref document: FI