IL198482A0 - Method of cancelling imperfections of an analogue signal generated by a device used to modulate an analogue signal from a digital modulation signal - Google Patents
Method of cancelling imperfections of an analogue signal generated by a device used to modulate an analogue signal from a digital modulation signalInfo
- Publication number
- IL198482A0 IL198482A0 IL198482A IL19848209A IL198482A0 IL 198482 A0 IL198482 A0 IL 198482A0 IL 198482 A IL198482 A IL 198482A IL 19848209 A IL19848209 A IL 19848209A IL 198482 A0 IL198482 A0 IL 198482A0
- Authority
- IL
- Israel
- Prior art keywords
- analogue signal
- cancelling
- imperfections
- modulate
- device used
- 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
- H04L27/362—Modulation using more than one carrier, e.g. with quadrature carriers, separately amplitude modulated
- H04L27/364—Arrangements for overcoming imperfections in the modulator, e.g. quadrature error or unbalanced I and Q levels
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/38—Angle modulation by converting amplitude modulation to angle modulation
- H03C3/40—Angle modulation by converting amplitude modulation to angle modulation using two signal paths the outputs of which have a predetermined phase difference and at least one output being amplitude-modulated
-
- 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
- H04L27/365—Modulation using digital generation of the modulated carrier (not including modulation of a digitally generated carrier)
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0802418A FR2930857A1 (en) | 2008-04-30 | 2008-04-30 | METHOD FOR CANCELING IMPERFECTIONS OF AN ANALOGUE SIGNAL GENERATED BY A DEVICE FOR MODULATING AN ANALOGUE SIGNAL FROM A DIGITAL MODULATION SIGNAL |
Publications (2)
Publication Number | Publication Date |
---|---|
IL198482A0 true IL198482A0 (en) | 2010-02-17 |
IL198482A IL198482A (en) | 2015-01-29 |
Family
ID=40231897
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IL198482A IL198482A (en) | 2008-04-30 | 2009-04-30 | Method for cancelling spurious spectral components of an analogue signal generated by a device used to modulate an analogue signal from a digital modulation signal |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2114045B1 (en) |
ES (1) | ES2662005T3 (en) |
FR (1) | FR2930857A1 (en) |
IL (1) | IL198482A (en) |
PL (1) | PL2114045T3 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2352570B (en) * | 1999-07-28 | 2003-12-24 | Wireless Systems Int Ltd | Distortion reduction |
US7403573B2 (en) * | 2003-01-15 | 2008-07-22 | Andrew Corporation | Uncorrelated adaptive predistorter |
US6931343B2 (en) | 2003-09-19 | 2005-08-16 | Globespanvirata, Incorporated | On-signal quadrature modulator calibration |
JP4574471B2 (en) * | 2004-09-17 | 2010-11-04 | 株式会社日立国際電気 | Distortion compensated quadrature modulator and radio transmitter |
-
2008
- 2008-04-30 FR FR0802418A patent/FR2930857A1/en not_active Withdrawn
-
2009
- 2009-04-30 ES ES09159169.3T patent/ES2662005T3/en active Active
- 2009-04-30 EP EP09159169.3A patent/EP2114045B1/en active Active
- 2009-04-30 IL IL198482A patent/IL198482A/en active IP Right Grant
- 2009-04-30 PL PL09159169T patent/PL2114045T3/en unknown
Also Published As
Publication number | Publication date |
---|---|
EP2114045B1 (en) | 2018-01-24 |
ES2662005T3 (en) | 2018-04-05 |
FR2930857A1 (en) | 2009-11-06 |
IL198482A (en) | 2015-01-29 |
PL2114045T3 (en) | 2018-05-30 |
EP2114045A1 (en) | 2009-11-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FF | Patent granted | ||
KB | Patent renewed | ||
KB | Patent renewed |