DE602005021265D1 - Mehrfachbandvorverzerrer unter Verwendung von Potenzreihendarstellung - Google Patents

Mehrfachbandvorverzerrer unter Verwendung von Potenzreihendarstellung

Info

Publication number
DE602005021265D1
DE602005021265D1 DE602005021265T DE602005021265T DE602005021265D1 DE 602005021265 D1 DE602005021265 D1 DE 602005021265D1 DE 602005021265 T DE602005021265 T DE 602005021265T DE 602005021265 T DE602005021265 T DE 602005021265T DE 602005021265 D1 DE602005021265 D1 DE 602005021265D1
Authority
DE
Germany
Prior art keywords
power series
series representation
band predistorter
predistorter
band
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.)
Active
Application number
DE602005021265T
Other languages
English (en)
Inventor
Yasunori Suzuki
Shoichi Narahashi
Shinji Mizuta
Yasushi Yamao
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.)
NTT Docomo Inc
Original Assignee
NTT Docomo 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 NTT Docomo Inc filed Critical NTT Docomo Inc
Publication of DE602005021265D1 publication Critical patent/DE602005021265D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/14—Flanged joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/16—Flanged joints characterised by the sealing means
    • F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
    • 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
    • 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
    • H03F1/3252—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using multiple parallel paths between input and output

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Amplifiers (AREA)
DE602005021265T 2004-02-03 2005-02-02 Mehrfachbandvorverzerrer unter Verwendung von Potenzreihendarstellung Active DE602005021265D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004027220 2004-02-03

Publications (1)

Publication Number Publication Date
DE602005021265D1 true DE602005021265D1 (de) 2010-07-01

Family

ID=34675482

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005021265T Active DE602005021265D1 (de) 2004-02-03 2005-02-02 Mehrfachbandvorverzerrer unter Verwendung von Potenzreihendarstellung

Country Status (5)

Country Link
US (1) US7170344B2 (de)
EP (1) EP1562285B1 (de)
KR (1) KR100665021B1 (de)
CN (1) CN100446413C (de)
DE (1) DE602005021265D1 (de)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7193462B2 (en) * 2005-03-22 2007-03-20 Powerwave Technologies, Inc. RF power amplifier system employing an analog predistortion module using zero crossings
US7756493B2 (en) * 2005-04-05 2010-07-13 Powerwave Technologies, Inc. Feed forward amplifier system and method using the pilot frequency from a positive feedback pilot generation and detection circuit to improve second loop convergence
CN100576724C (zh) * 2005-05-18 2009-12-30 株式会社Ntt都科摩 幂级数型前置补偿器及其控制方法
DE602006000525T2 (de) * 2005-06-03 2009-02-05 Ntt Docomo Inc. Mehrbandvorverzerrer mit Korrekturwertetabellen
DE602006000622T2 (de) * 2005-06-06 2009-03-26 Ntt Docomo Inc. Potenzreihenvorverzerrer mehrerer Frequenzbänder
US8102940B1 (en) * 2007-07-16 2012-01-24 Lockheed Martin Corporation Receive frequency band interference protection system using predistortion linearization
JP5228723B2 (ja) * 2008-09-10 2013-07-03 富士通株式会社 歪補償装置及び方法
JP5071370B2 (ja) * 2008-12-26 2012-11-14 富士通株式会社 歪補償装置及び方法
US8767857B2 (en) * 2009-05-14 2014-07-01 Seyed Aidin BASSAM Multi-cell processing architectures for modeling and impairment compensation in multi-input multi-output systems
JP5113871B2 (ja) * 2009-05-21 2013-01-09 株式会社エヌ・ティ・ティ・ドコモ べき級数型ディジタルプリディストータ及びその制御方法
EP2442459A1 (de) * 2009-06-12 2012-04-18 NTT DoCoMo, Inc. Relaisverstärkungsvorrichtung
US20100323641A1 (en) * 2009-06-22 2010-12-23 Qualcomm Incorporated Method and apparatus for using pre-distortion and feedback to mitigate nonlinearity of circuits
US8192634B2 (en) * 2009-07-13 2012-06-05 Gilles Stephen R Centrifugal basket assembly with segmented dam and method
JP5355508B2 (ja) * 2009-08-27 2013-11-27 株式会社エヌ・ティ・ティ・ドコモ べき級数型ディジタルプリディストータとその歪補償制御方法
US8750410B2 (en) 2010-09-22 2014-06-10 Texas Instruments Incorporated Multi-band power amplifier digital predistortion system and method
US8410843B2 (en) * 2011-01-10 2013-04-02 Massachusetts Institute Of Technology Polyphase nonlinear digital predistortion
FR2976426B1 (fr) * 2011-06-10 2013-05-31 Thales Sa Systeme d'amplification de signaux generes par une unite de generation de signaux d'un satellite.
US8380144B1 (en) * 2011-09-30 2013-02-19 Telefonaktiebolaget L M Ericsson (Publ) Systems and methods for digital predistortion in a dual band transmitter
US8391809B1 (en) * 2011-10-13 2013-03-05 Futurewei Technologies, Inc. System and method for multi-band predistortion
US8817859B2 (en) * 2011-10-14 2014-08-26 Fadhel Ghannouchi Digital multi-band predistortion linearizer with nonlinear subsampling algorithm in the feedback loop
CN103718456A (zh) * 2011-12-09 2014-04-09 株式会社Ntt都科摩 预失真器、预失真器控制方法
US8606197B2 (en) * 2012-01-16 2013-12-10 Telefonaktiebolaget L M Ericsson (Publ) Method and system for generating odd order predistortions for a power amplifier receiving concurrent dual band inputs
US9071207B2 (en) 2012-02-03 2015-06-30 Telefonaktiebolaget L M Ericsson (Publ) Predistortion of concurrent multi-band signal to compensate for PA non-linearity
US20130241656A1 (en) * 2012-03-19 2013-09-19 Auriga Measurement Systems, LLC Power Amplification System Using Doherty Amplifier with Linearization Circuit and Related Techniques
US8923787B2 (en) * 2012-07-05 2014-12-30 Pierre-André LAPORTE Low sampling rate adaptation scheme for dual-band linearization
US9385762B2 (en) 2013-05-22 2016-07-05 Telefonaktiebolaget L M Ericsson (Publ) Linearization of intermodulation bands for concurrent dual-band power amplifiers
US9252718B2 (en) 2013-05-22 2016-02-02 Telefonaktiebolaget L M Ericsson (Publ) Low complexity digital predistortion for concurrent multi-band transmitters
US9379744B2 (en) 2014-09-16 2016-06-28 Honeywell International Inc. System and method for digital predistortion
WO2018156932A1 (en) 2017-02-25 2018-08-30 Nanosemi, Inc. Multiband digital predistorter
US10141961B1 (en) 2017-05-18 2018-11-27 Nanosemi, Inc. Passive intermodulation cancellation
US11115067B2 (en) * 2017-06-09 2021-09-07 Nanosemi, Inc. Multi-band linearization system
US10931318B2 (en) * 2017-06-09 2021-02-23 Nanosemi, Inc. Subsampled linearization system
WO2019014422A1 (en) 2017-07-12 2019-01-17 Nanosemi, Inc. SYSTEMS AND METHODS FOR CONTROLLING RADIOS MADE WITH DIGITAL PREDISTORSION
US10547394B2 (en) * 2017-07-13 2020-01-28 Benjamin J. Egg Quad band relay common data link system and method
WO2019070573A1 (en) 2017-10-02 2019-04-11 Nanosemi, Inc. DIGITAL PREDISTORSION ADJUSTMENT BASED ON DETERMINATION OF CHARGE CHARACTERISTICS
US10644657B1 (en) 2018-05-11 2020-05-05 Nanosemi, Inc. Multi-band digital compensator for a non-linear system
US11863210B2 (en) 2018-05-25 2024-01-02 Nanosemi, Inc. Linearization with level tracking
CN112019221B (zh) * 2019-05-28 2021-11-02 中兴通讯股份有限公司 一种信号处理方法、装置和存储介质
US11456760B1 (en) * 2021-03-05 2022-09-27 Motorola Solutions, Inc. Linearizing narrowband carriers with low resolution predistorters

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Publication number Priority date Publication date Assignee Title
DE2306294A1 (de) 1973-02-08 1974-08-15 Rohde & Schwarz Schaltung zur kompensation der nichtlinearitaet eines verstaerkers, insbesondere des leistungsverstaerkers eines fernsehsenders
GB2153173B (en) * 1984-01-19 1987-09-30 Marconi Co Ltd High-frequency pre-distortion circuit for power amplifiers
US4811422A (en) * 1986-12-22 1989-03-07 Kahn Leonard R Reduction of undesired harmonic components
CN1135713C (zh) * 1997-04-22 2004-01-21 三星电子株式会社 控制前置补偿器失真特性的装置及方法
GB2335812B (en) 1998-03-06 2000-03-22 Wireless Systems Int Ltd A predistorter
KR100326176B1 (ko) 1998-08-06 2002-04-17 윤종용 이동통신시스템의전력증폭장치및방법
JP3772031B2 (ja) * 1998-09-02 2006-05-10 富士通株式会社 増幅器のプリディストータと増幅装置
EP1142104B1 (de) * 1998-12-24 2005-08-17 Nokia Corporation Mehrfrequenz-sendeeinrichtung unter verwendung von vorverzerrung und sendemethode
GB2348755B (en) * 1999-04-01 2001-03-07 Wireless Systems Int Ltd Signal processing
JP2001036372A (ja) * 1999-07-15 2001-02-09 Murata Mfg Co Ltd ディレイライン
DE10009596A1 (de) 2000-02-29 2001-08-30 Bosch Gmbh Robert Vorrichtung zur Linearisierung eines Hochfrequenz-Verstärkers
JP2002223171A (ja) * 2001-01-29 2002-08-09 Fujitsu Ltd 歪補償係数を補正及び補間する非線形歪補償送信装置

Also Published As

Publication number Publication date
US7170344B2 (en) 2007-01-30
KR20050078994A (ko) 2005-08-08
CN100446413C (zh) 2008-12-24
EP1562285A1 (de) 2005-08-10
CN1652456A (zh) 2005-08-10
KR100665021B1 (ko) 2007-01-04
EP1562285B1 (de) 2010-05-19
US20050168283A1 (en) 2005-08-04

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