WO2000036799A3 - Transmitter linearization - Google Patents
Transmitter linearization Download PDFInfo
- Publication number
- WO2000036799A3 WO2000036799A3 PCT/FI1999/001050 FI9901050W WO0036799A3 WO 2000036799 A3 WO2000036799 A3 WO 2000036799A3 FI 9901050 W FI9901050 W FI 9901050W WO 0036799 A3 WO0036799 A3 WO 0036799A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- transmitter
- linearization parameters
- linearization
- transmitted
- parameters
- Prior art date
Links
Classifications
-
- 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
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/16—Multiple-frequency-changing
- H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
- H03D7/166—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature using two or more quadrature frequency translation stages
- H03D7/168—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature using two or more quadrature frequency translation stages using a feedback loop containing mixers or demodulators
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU19859/00A AU1985900A (en) | 1998-12-17 | 1999-12-16 | Transmitter linearization |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI982739 | 1998-12-17 | ||
FI982739A FI982739A (en) | 1998-12-17 | 1998-12-17 | Transmitter linearization |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2000036799A2 WO2000036799A2 (en) | 2000-06-22 |
WO2000036799A3 true WO2000036799A3 (en) | 2000-09-14 |
Family
ID=8553143
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FI1999/001050 WO2000036799A2 (en) | 1998-12-17 | 1999-12-16 | Transmitter linearization |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU1985900A (en) |
FI (1) | FI982739A (en) |
WO (1) | WO2000036799A2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2377837A (en) * | 2001-07-20 | 2003-01-22 | Univ Bristol | Mixer linearisation using frequency retranslation |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5093637A (en) * | 1987-12-27 | 1992-03-03 | Mitsubishi Denki Kabushiki Kaisha | Modulation device with input signal modification for correction of amplifier nonlinearities |
EP0658975A1 (en) * | 1993-12-14 | 1995-06-21 | ALCATEL ITALIA S.p.A. | Baseband predistortion system for the adaptive linearization of power amplifiers |
EP0731556A1 (en) * | 1995-03-06 | 1996-09-11 | NEC Corporation | High-power linear amplification using periodically updated amplitude and phase correction values |
EP0907276A1 (en) * | 1997-06-30 | 1999-04-07 | Harris Corporation | Adaptive pre-distortion apparatus for linearizing an amplifier output within a data transmission system |
-
1998
- 1998-12-17 FI FI982739A patent/FI982739A/en unknown
-
1999
- 1999-12-16 AU AU19859/00A patent/AU1985900A/en not_active Abandoned
- 1999-12-16 WO PCT/FI1999/001050 patent/WO2000036799A2/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5093637A (en) * | 1987-12-27 | 1992-03-03 | Mitsubishi Denki Kabushiki Kaisha | Modulation device with input signal modification for correction of amplifier nonlinearities |
EP0658975A1 (en) * | 1993-12-14 | 1995-06-21 | ALCATEL ITALIA S.p.A. | Baseband predistortion system for the adaptive linearization of power amplifiers |
EP0731556A1 (en) * | 1995-03-06 | 1996-09-11 | NEC Corporation | High-power linear amplification using periodically updated amplitude and phase correction values |
EP0907276A1 (en) * | 1997-06-30 | 1999-04-07 | Harris Corporation | Adaptive pre-distortion apparatus for linearizing an amplifier output within a data transmission system |
Also Published As
Publication number | Publication date |
---|---|
FI982739A (en) | 2000-06-18 |
WO2000036799A2 (en) | 2000-06-22 |
AU1985900A (en) | 2000-07-03 |
FI982739A0 (en) | 1998-12-17 |
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