ATE361617T1 - Verfahren und vorrichtung zur durchführung einer adaptiven vorverzerrung - Google Patents
Verfahren und vorrichtung zur durchführung einer adaptiven vorverzerrungInfo
- Publication number
- ATE361617T1 ATE361617T1 AT01128934T AT01128934T ATE361617T1 AT E361617 T1 ATE361617 T1 AT E361617T1 AT 01128934 T AT01128934 T AT 01128934T AT 01128934 T AT01128934 T AT 01128934T AT E361617 T1 ATE361617 T1 AT E361617T1
- Authority
- AT
- Austria
- Prior art keywords
- sample stream
- predistortion
- samples
- radio signal
- adaptive predistortion
- Prior art date
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
- H03F1/3247—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using feedback acting on predistortion circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- 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
- H03F1/3294—Acting on the real and imaginary components of the input signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
-
- 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
- H03F2200/207—A hybrid coupler being used as power measuring circuit at the output of an amplifier circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/336—A I/Q, i.e. phase quadrature, modulator or demodulator being used in an amplifying circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Transmitters (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01128934A EP1318643B1 (de) | 2001-12-05 | 2001-12-05 | Verfahren und Vorrichtung zur Durchführung einer adaptiven Vorverzerrung |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE361617T1 true ATE361617T1 (de) | 2007-05-15 |
Family
ID=8179449
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT01128934T ATE361617T1 (de) | 2001-12-05 | 2001-12-05 | Verfahren und vorrichtung zur durchführung einer adaptiven vorverzerrung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1318643B1 (de) |
AT (1) | ATE361617T1 (de) |
DE (1) | DE60128245T2 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7469491B2 (en) | 2004-01-27 | 2008-12-30 | Crestcom, Inc. | Transmitter predistortion circuit and method therefor |
US7430248B2 (en) | 2004-01-27 | 2008-09-30 | Crestcom, Inc. | Predistortion circuit and method for compensating nonlinear distortion in a digital RF communications transmitter |
BRPI0507137A (pt) * | 2004-01-27 | 2007-06-19 | Crestcom Inc | circuito de pré-distorção de transmissor e método para isto |
US7429892B2 (en) | 2004-03-25 | 2008-09-30 | Optichron, Inc. | Model based distortion reduction for power amplifiers |
DE102004019984B4 (de) | 2004-04-23 | 2006-06-29 | Infineon Technologies Ag | Einrichtung zur Verarbeitung von Funk-Sendedaten mit einer digitalen Vorverzerrung |
US7288988B2 (en) | 2005-04-13 | 2007-10-30 | Powerwave Technologies, Inc. | Adaptive predistortion linearized amplifier system employing selective sampling |
CN100563225C (zh) | 2005-05-27 | 2009-11-25 | 华为技术有限公司 | 对基带数字信号进行预失真处理的通用装置 |
US7724840B2 (en) | 2006-12-19 | 2010-05-25 | Crestcom, Inc. | RF transmitter with predistortion and method therefor |
CN102227878B (zh) * | 2008-09-30 | 2014-10-22 | 法国电信公司 | 考虑回波的传输方法 |
JP5299298B2 (ja) * | 2010-01-29 | 2013-09-25 | 富士通株式会社 | 歪補償装置、送信装置、歪補償方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6285412B1 (en) * | 1997-07-23 | 2001-09-04 | Harris Corporation | Adaptive pre-equalization apparatus for correcting linear distortion of a non-ideal data transmission system |
US6252912B1 (en) * | 1997-12-24 | 2001-06-26 | General Dynamics Government Systems Corporation | Adaptive predistortion system |
-
2001
- 2001-12-05 DE DE60128245T patent/DE60128245T2/de not_active Expired - Lifetime
- 2001-12-05 EP EP01128934A patent/EP1318643B1/de not_active Expired - Lifetime
- 2001-12-05 AT AT01128934T patent/ATE361617T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP1318643A1 (de) | 2003-06-11 |
DE60128245T2 (de) | 2008-01-03 |
EP1318643B1 (de) | 2007-05-02 |
DE60128245D1 (de) | 2007-06-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |