KR20010021355A - 결합 신호간 상대 위상, 상대 이득 및 상대 위상 또는이득의 조절 방법 - Google Patents

결합 신호간 상대 위상, 상대 이득 및 상대 위상 또는이득의 조절 방법 Download PDF

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Publication number
KR20010021355A
KR20010021355A KR1020000047856A KR20000047856A KR20010021355A KR 20010021355 A KR20010021355 A KR 20010021355A KR 1020000047856 A KR1020000047856 A KR 1020000047856A KR 20000047856 A KR20000047856 A KR 20000047856A KR 20010021355 A KR20010021355 A KR 20010021355A
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KR
South Korea
Prior art keywords
gain
adjustment
phase
previous
signal
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.)
Ceased
Application number
KR1020000047856A
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English (en)
Korean (ko)
Inventor
가나단레자
마이어로버트에반
Original Assignee
루센트 테크놀러지스 인크
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Publication date
Application filed by 루센트 테크놀러지스 인크 filed Critical 루센트 테크놀러지스 인크
Publication of KR20010021355A publication Critical patent/KR20010021355A/ko
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/04—Modifications of control circuit to reduce distortion caused by control
    • 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
    • H03F1/3223—Modifications of amplifiers to reduce non-linear distortion using feed-forward
    • H03F1/3229—Modifications of amplifiers to reduce non-linear distortion using feed-forward using a loop for error extraction and another loop for error subtraction
    • H03F1/3235—Modifications of amplifiers to reduce non-linear distortion using feed-forward using a loop for error extraction and another loop for error subtraction using a pilot signal
    • 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
    • H03F2201/3212—Using a control circuit to adjust amplitude and phase of a signal in a signal path

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Feedback Control In General (AREA)
KR1020000047856A 1999-08-19 2000-08-18 결합 신호간 상대 위상, 상대 이득 및 상대 위상 또는이득의 조절 방법 Ceased KR20010021355A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/378,009 US6392480B1 (en) 1999-08-19 1999-08-19 Alternating gain and phase control system and method
US9/378,009 1999-08-19

Publications (1)

Publication Number Publication Date
KR20010021355A true KR20010021355A (ko) 2001-03-15

Family

ID=23491363

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020000047856A Ceased KR20010021355A (ko) 1999-08-19 2000-08-18 결합 신호간 상대 위상, 상대 이득 및 상대 위상 또는이득의 조절 방법

Country Status (9)

Country Link
US (1) US6392480B1 (enExample)
EP (1) EP1079516B1 (enExample)
JP (1) JP2001119249A (enExample)
KR (1) KR20010021355A (enExample)
CN (1) CN100452643C (enExample)
AU (1) AU765299B2 (enExample)
BR (1) BR0003387B1 (enExample)
CA (1) CA2315583C (enExample)
DE (1) DE60043683D1 (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6411644B1 (en) * 1998-09-29 2002-06-25 Lucent Technologies Inc. Frequency hop pilot technique for a control system that reduces distortion produced by electrical circuits
JP2003110369A (ja) * 2001-09-27 2003-04-11 Hitachi Kokusai Electric Inc 歪み補償増幅装置
EP1552605A4 (en) * 2002-06-25 2007-05-30 Soma Networks Inc AMPLIFIERS WITH DOWNSTREAM CORRECTION
US6882217B1 (en) 2002-09-27 2005-04-19 3Com Corporation Cubic spline predistortion, algorithm and training, for a wireless LAN system
US7274750B1 (en) 2002-09-27 2007-09-25 3Com Corporation Gain and phase imbalance compensation for OFDM systems
US9473275B2 (en) 2013-11-13 2016-10-18 Mediatek Singapore Pte. Ltd. Gain asymmetry characterizing circuit and method for determining characteristics of gain asymmetry possessed by transmitter

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04275708A (ja) * 1991-03-01 1992-10-01 Nippon Telegr & Teleph Corp <Ntt> 非線形歪補償回路
US5365190A (en) * 1993-05-03 1994-11-15 Duly Research, Inc. Feed-forward digital phase and amplitude correction system
US5477187A (en) * 1992-03-19 1995-12-19 Fujitsu Limited Feed forward amplifier
KR970031238A (ko) * 1995-11-16 1997-06-26 김광호 선형 증폭 장치 및 방법

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5485120A (en) * 1994-07-28 1996-01-16 Aval Communications Inc. Feed-forward power amplifier system with adaptive control and control method
US5610554A (en) * 1994-07-28 1997-03-11 Aval Communications Inc. Cancellation loop, for a feed-forward amplifier, employing an adaptive controller
US5455537A (en) * 1994-08-19 1995-10-03 Radio Frequency Systems, Inc. Feed forward amplifier
JP3361657B2 (ja) * 1995-07-20 2003-01-07 松下電器産業株式会社 フィードフォワード増幅器の制御装置および制御方法
US5789976A (en) * 1996-06-17 1998-08-04 Corporation De L'ecole Polytechnique Digital adaptive control of feedforward amplifier using frequency domain cancellation
US5847603A (en) * 1997-07-31 1998-12-08 Lucent Technologies Inc. Automatic control system for reducing distortion produced by electrical circuits
US5999048A (en) * 1998-01-13 1999-12-07 Lucent Technologies Inc. Method and apparatus for spread spectrum pilot extraction for RF amplifiers
US5929704A (en) * 1998-02-20 1999-07-27 Spectrian Control of RF error extraction using auto-calibrating RF correlator
US5963091A (en) * 1998-04-01 1999-10-05 Chen; Jiunn-Tsair Article comprising a power amplifier with feed forward linearizer using a RLS parameter tracking algorithm
JP2000004124A (ja) * 1998-06-17 2000-01-07 Nec Corp フィードフォワード増幅器
US6211733B1 (en) * 1999-10-22 2001-04-03 Powerwave Technologies, Inc. Predistortion compensation for a power amplifier

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04275708A (ja) * 1991-03-01 1992-10-01 Nippon Telegr & Teleph Corp <Ntt> 非線形歪補償回路
US5477187A (en) * 1992-03-19 1995-12-19 Fujitsu Limited Feed forward amplifier
US5365190A (en) * 1993-05-03 1994-11-15 Duly Research, Inc. Feed-forward digital phase and amplitude correction system
KR970031238A (ko) * 1995-11-16 1997-06-26 김광호 선형 증폭 장치 및 방법

Also Published As

Publication number Publication date
JP2001119249A (ja) 2001-04-27
CA2315583A1 (en) 2001-02-19
CN1289177A (zh) 2001-03-28
DE60043683D1 (de) 2010-03-04
EP1079516A2 (en) 2001-02-28
CN100452643C (zh) 2009-01-14
US6392480B1 (en) 2002-05-21
EP1079516A3 (en) 2001-10-31
CA2315583C (en) 2005-02-08
BR0003387A (pt) 2001-04-03
AU765299B2 (en) 2003-09-11
AU5196800A (en) 2001-02-22
EP1079516B1 (en) 2010-01-13
BR0003387B1 (pt) 2013-06-25

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