DE60123982D1 - Offline-mcpa-kalibrierung - Google Patents
Offline-mcpa-kalibrierungInfo
- Publication number
- DE60123982D1 DE60123982D1 DE60123982T DE60123982T DE60123982D1 DE 60123982 D1 DE60123982 D1 DE 60123982D1 DE 60123982 T DE60123982 T DE 60123982T DE 60123982 T DE60123982 T DE 60123982T DE 60123982 D1 DE60123982 D1 DE 60123982D1
- Authority
- DE
- Germany
- Prior art keywords
- power amplifier
- spectrum
- input
- signal
- output
- 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.)
- Expired - Lifetime
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
-
- 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
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/02—Channels characterised by the type of signal
- H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0003071A SE517456C2 (sv) | 2000-09-07 | 2000-09-07 | MCPA-kalibrering off-line |
PCT/SE2001/001782 WO2002021683A1 (en) | 2000-09-07 | 2001-08-23 | Off-line mcpa calibration |
Publications (1)
Publication Number | Publication Date |
---|---|
DE60123982D1 true DE60123982D1 (de) | 2006-11-30 |
Family
ID=20280841
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60123982T Expired - Lifetime DE60123982D1 (de) | 2000-09-07 | 2001-08-23 | Offline-mcpa-kalibrierung |
Country Status (7)
Country | Link |
---|---|
US (1) | US6975688B2 (de) |
EP (1) | EP1316145B1 (de) |
AT (1) | ATE343246T1 (de) |
AU (1) | AU2001282773A1 (de) |
DE (1) | DE60123982D1 (de) |
SE (1) | SE517456C2 (de) |
WO (1) | WO2002021683A1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1351064A1 (de) * | 2002-04-06 | 2003-10-08 | Agilent Technologies, Inc. - a Delaware corporation - | Messgerät mit Spektrum-Analysator und Verfahren hierfür |
US7991071B2 (en) | 2002-05-16 | 2011-08-02 | Rf Micro Devices, Inc. | AM to PM correction system for polar modulator |
US7801244B2 (en) * | 2002-05-16 | 2010-09-21 | Rf Micro Devices, Inc. | Am to AM correction system for polar modulator |
DE10320420B4 (de) * | 2003-05-07 | 2005-05-25 | Siemens Ag | Anordnung und Verfahren zur digitalen Vorverzerrung eines komplexen Basisband-Eingangssignals |
US7720171B2 (en) * | 2003-06-13 | 2010-05-18 | Alcatel-Lucent Usa Inc. | Coefficient estimation method and apparatus |
US7551686B1 (en) | 2004-06-23 | 2009-06-23 | Rf Micro Devices, Inc. | Multiple polynomial digital predistortion |
US7529523B1 (en) | 2004-08-23 | 2009-05-05 | Rf Micro Devices, Inc. | N-th order curve fit for power calibration in a mobile terminal |
US8224265B1 (en) | 2005-06-13 | 2012-07-17 | Rf Micro Devices, Inc. | Method for optimizing AM/AM and AM/PM predistortion in a mobile terminal |
US7877060B1 (en) | 2006-02-06 | 2011-01-25 | Rf Micro Devices, Inc. | Fast calibration of AM/PM pre-distortion |
US7962108B1 (en) | 2006-03-29 | 2011-06-14 | Rf Micro Devices, Inc. | Adaptive AM/PM compensation |
US7689182B1 (en) | 2006-10-12 | 2010-03-30 | Rf Micro Devices, Inc. | Temperature compensated bias for AM/PM improvement |
US8009762B1 (en) | 2007-04-17 | 2011-08-30 | Rf Micro Devices, Inc. | Method for calibrating a phase distortion compensated polar modulated radio frequency transmitter |
US8489042B1 (en) | 2009-10-08 | 2013-07-16 | Rf Micro Devices, Inc. | Polar feedback linearization |
CN103973250B (zh) * | 2014-04-23 | 2016-08-31 | 京信通信系统(中国)有限公司 | Dpd mcpa功放增益自适应补偿方法、系统与装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2257860B (en) * | 1991-07-06 | 1995-09-20 | Racal Communications Syst Ltd | Amplification systems |
US5732333A (en) * | 1996-02-14 | 1998-03-24 | Glenayre Electronics, Inc. | Linear transmitter using predistortion |
US5937011A (en) * | 1996-03-26 | 1999-08-10 | Airnet Communications Corp. | Multi-carrier high power amplifier using digital pre-distortion |
US5959499A (en) * | 1997-09-30 | 1999-09-28 | Motorola, Inc. | Predistortion system and method using analog feedback loop for look-up table training |
US6600792B2 (en) * | 1998-06-26 | 2003-07-29 | Qualcomm Incorporated | Predistortion technique for high power amplifiers |
US6304140B1 (en) * | 2000-06-12 | 2001-10-16 | Motorola, Inc. | Digital predistortion for amplifiers |
-
2000
- 2000-09-07 SE SE0003071A patent/SE517456C2/sv unknown
-
2001
- 2001-08-23 EP EP01961512A patent/EP1316145B1/de not_active Expired - Lifetime
- 2001-08-23 WO PCT/SE2001/001782 patent/WO2002021683A1/en active IP Right Grant
- 2001-08-23 DE DE60123982T patent/DE60123982D1/de not_active Expired - Lifetime
- 2001-08-23 AU AU2001282773A patent/AU2001282773A1/en not_active Abandoned
- 2001-08-23 AT AT01961512T patent/ATE343246T1/de not_active IP Right Cessation
- 2001-09-05 US US09/947,054 patent/US6975688B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
SE517456C2 (sv) | 2002-06-11 |
EP1316145A1 (de) | 2003-06-04 |
ATE343246T1 (de) | 2006-11-15 |
US20020027961A1 (en) | 2002-03-07 |
SE0003071L (sv) | 2002-03-08 |
WO2002021683A1 (en) | 2002-03-14 |
US6975688B2 (en) | 2005-12-13 |
SE0003071D0 (sv) | 2000-09-07 |
EP1316145B1 (de) | 2006-10-18 |
AU2001282773A1 (en) | 2002-03-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8332 | No legal effect for de |