WO2008090613A1 - 歪補償装置 - Google Patents

歪補償装置 Download PDF

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Publication number
WO2008090613A1
WO2008090613A1 PCT/JP2007/051161 JP2007051161W WO2008090613A1 WO 2008090613 A1 WO2008090613 A1 WO 2008090613A1 JP 2007051161 W JP2007051161 W JP 2007051161W WO 2008090613 A1 WO2008090613 A1 WO 2008090613A1
Authority
WO
WIPO (PCT)
Prior art keywords
distortion compensation
coefficient
distortion
compensation coefficient
transmission 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
PCT/JP2007/051161
Other languages
English (en)
French (fr)
Inventor
Hideharu Shako
Yasuhito Funyu
Takeshi Ohba
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to PCT/JP2007/051161 priority Critical patent/WO2008090613A1/ja
Priority to JP2008554937A priority patent/JP5040924B2/ja
Publication of WO2008090613A1 publication Critical patent/WO2008090613A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/60—Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators
    • H03F3/602—Combinations of several amplifiers
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)

Abstract

　パワーアンプの故障を検出するための専用の回路を不要とし、回路規模、消費電力、およびコストを抑制する。 　係数記憶手段（２）は、指定された書き込みアドレスに歪補償係数を記憶し、指定された読み出しアドレスに記憶している歪補償係数を出力する。プリディストーション手段（３）は、係数記憶手段（２）から出力された歪補償係数を用いて、送信信号に歪補償処理を施す。歪補償演算手段（４）は、歪補償処理の前の送信信号とパワーアンプ（１ａ，１ｂ）による増幅後の送信信号との誤差成分に基づいて歪補償係数の更新値を演算する。中央演算処理装置（５）は、係数記憶手段（２）の歪補償係数を読み出し、歪補償係数に基づいてパワーアンプ（１ａ，１ｂ）の故障を検出する。
PCT/JP2007/051161 2007-01-25 2007-01-25 歪補償装置 Ceased WO2008090613A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2007/051161 WO2008090613A1 (ja) 2007-01-25 2007-01-25 歪補償装置
JP2008554937A JP5040924B2 (ja) 2007-01-25 2007-01-25 歪補償装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/051161 WO2008090613A1 (ja) 2007-01-25 2007-01-25 歪補償装置

Publications (1)

Publication Number Publication Date
WO2008090613A1 true WO2008090613A1 (ja) 2008-07-31

Family

ID=39644195

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/051161 Ceased WO2008090613A1 (ja) 2007-01-25 2007-01-25 歪補償装置

Country Status (2)

Country Link
JP (1) JP5040924B2 (ja)
WO (1) WO2008090613A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010159346A (ja) * 2009-01-08 2010-07-22 Nippon Carbide Ind Co Inc 粘着剤及び光学フィルム
JP2011160043A (ja) * 2010-01-29 2011-08-18 Fujitsu Ltd 歪補償装置、送信装置、歪補償方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000201040A (ja) * 1999-01-08 2000-07-18 Matsushita Electric Ind Co Ltd 出力増幅回路
JP2002232305A (ja) * 2001-01-31 2002-08-16 Fujitsu Ltd 故障判定機能を備えた非線形歪補償送信装置
JP2003008360A (ja) * 2001-06-22 2003-01-10 Nec Mobiling Ltd プリディストーション形リニアライザ及びそのアラーム検出方法
JP2003060447A (ja) * 2001-08-20 2003-02-28 Fujitsu Ltd 送信システム

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000201040A (ja) * 1999-01-08 2000-07-18 Matsushita Electric Ind Co Ltd 出力増幅回路
JP2002232305A (ja) * 2001-01-31 2002-08-16 Fujitsu Ltd 故障判定機能を備えた非線形歪補償送信装置
JP2003008360A (ja) * 2001-06-22 2003-01-10 Nec Mobiling Ltd プリディストーション形リニアライザ及びそのアラーム検出方法
JP2003060447A (ja) * 2001-08-20 2003-02-28 Fujitsu Ltd 送信システム

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010159346A (ja) * 2009-01-08 2010-07-22 Nippon Carbide Ind Co Inc 粘着剤及び光学フィルム
JP2011160043A (ja) * 2010-01-29 2011-08-18 Fujitsu Ltd 歪補償装置、送信装置、歪補償方法

Also Published As

Publication number Publication date
JPWO2008090613A1 (ja) 2010-05-13
JP5040924B2 (ja) 2012-10-03

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