ATE213108T1 - Verfahren zur korrektur von nichtlinearen verzerrungen in einem verstärker und ein solches verfahren verwendenden funksenders - Google Patents

Verfahren zur korrektur von nichtlinearen verzerrungen in einem verstärker und ein solches verfahren verwendenden funksenders

Info

Publication number
ATE213108T1
ATE213108T1 AT97400614T AT97400614T ATE213108T1 AT E213108 T1 ATE213108 T1 AT E213108T1 AT 97400614 T AT97400614 T AT 97400614T AT 97400614 T AT97400614 T AT 97400614T AT E213108 T1 ATE213108 T1 AT E213108T1
Authority
AT
Austria
Prior art keywords
signal
complex
amplifier
predistortion
input
Prior art date
Application number
AT97400614T
Other languages
English (en)
Inventor
Gottfried Schnabl
Jacques Peltier
Original Assignee
Matra Nortel Communications
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 Matra Nortel Communications filed Critical Matra Nortel Communications
Application granted granted Critical
Publication of ATE213108T1 publication Critical patent/ATE213108T1/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
    • H03F1/3282—Acting on the phase and the amplitude of the input signal
    • 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
    • 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
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/438—Separate feedback of amplitude and phase 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)
  • Amplifiers (AREA)
  • Transmitters (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
AT97400614T 1996-03-22 1997-03-19 Verfahren zur korrektur von nichtlinearen verzerrungen in einem verstärker und ein solches verfahren verwendenden funksenders ATE213108T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9603617A FR2746564B1 (fr) 1996-03-22 1996-03-22 Procede pour corriger des non-linearites d'un amplificateur, et emetteur radio mettant en oeuvre un tel procede

Publications (1)

Publication Number Publication Date
ATE213108T1 true ATE213108T1 (de) 2002-02-15

Family

ID=9490462

Family Applications (1)

Application Number Title Priority Date Filing Date
AT97400614T ATE213108T1 (de) 1996-03-22 1997-03-19 Verfahren zur korrektur von nichtlinearen verzerrungen in einem verstärker und ein solches verfahren verwendenden funksenders

Country Status (9)

Country Link
US (1) US5903611A (de)
EP (1) EP0797294B1 (de)
JP (1) JPH1032435A (de)
AT (1) ATE213108T1 (de)
AU (1) AU711697B2 (de)
CA (1) CA2200387C (de)
DE (1) DE69710235T2 (de)
FR (1) FR2746564B1 (de)
TW (1) TW332365B (de)

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Also Published As

Publication number Publication date
FR2746564A1 (fr) 1997-09-26
TW332365B (en) 1998-05-21
US5903611A (en) 1999-05-11
AU1637297A (en) 1997-09-25
CA2200387C (en) 2004-06-22
JPH1032435A (ja) 1998-02-03
EP0797294B1 (de) 2002-02-06
EP0797294A1 (de) 1997-09-24
DE69710235D1 (de) 2002-03-21
CA2200387A1 (en) 1997-09-22
DE69710235T2 (de) 2002-09-19
AU711697B2 (en) 1999-10-21
FR2746564B1 (fr) 1998-06-05

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