NO321303B1 - Adaptiv ubalansekorrigering i en kvadraturmodulator - Google Patents
Adaptiv ubalansekorrigering i en kvadraturmodulator Download PDFInfo
- Publication number
- NO321303B1 NO321303B1 NO20033695A NO20033695A NO321303B1 NO 321303 B1 NO321303 B1 NO 321303B1 NO 20033695 A NO20033695 A NO 20033695A NO 20033695 A NO20033695 A NO 20033695A NO 321303 B1 NO321303 B1 NO 321303B1
- Authority
- NO
- Norway
- Prior art keywords
- value
- modulator
- determining
- signal
- statistical distributions
- Prior art date
Links
- 230000003044 adaptive effect Effects 0.000 title description 5
- 238000012937 correction Methods 0.000 title description 3
- 238000000034 method Methods 0.000 claims abstract description 44
- 238000009826 distribution Methods 0.000 claims description 55
- 239000013598 vector Substances 0.000 claims description 28
- 230000015556 catabolic process Effects 0.000 claims description 8
- 238000006731 degradation reaction Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 8
- 238000012986 modification Methods 0.000 claims 4
- 230000004048 modification Effects 0.000 claims 4
- 230000001747 exhibiting effect Effects 0.000 claims 1
- 230000006735 deficit Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 10
- 230000010354 integration Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 230000006866 deterioration Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000001186 cumulative effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0016—Stabilisation of local oscillators
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0018—Arrangements at the transmitter end
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Transmitters (AREA)
- Optical Communication System (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO20033695A NO321303B1 (no) | 2003-08-20 | 2003-08-20 | Adaptiv ubalansekorrigering i en kvadraturmodulator |
| DE602004026255T DE602004026255D1 (de) | 2003-08-20 | 2004-08-19 | Adaptive Ungleichgewichtskorrektur basierend auf Amplitudenverteilung |
| AT04019674T ATE463114T1 (de) | 2003-08-20 | 2004-08-19 | Adaptive ungleichgewichtskorrektur basierend auf amplitudenverteilung |
| EP04019674A EP1511264B1 (de) | 2003-08-20 | 2004-08-19 | Adaptive Ungleichgewichtskorrektur basierend auf Amplitudenverteilung |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO20033695A NO321303B1 (no) | 2003-08-20 | 2003-08-20 | Adaptiv ubalansekorrigering i en kvadraturmodulator |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO20033695D0 NO20033695D0 (no) | 2003-08-20 |
| NO20033695L NO20033695L (no) | 2005-02-21 |
| NO321303B1 true NO321303B1 (no) | 2006-04-24 |
Family
ID=28036457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO20033695A NO321303B1 (no) | 2003-08-20 | 2003-08-20 | Adaptiv ubalansekorrigering i en kvadraturmodulator |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1511264B1 (de) |
| AT (1) | ATE463114T1 (de) |
| DE (1) | DE602004026255D1 (de) |
| NO (1) | NO321303B1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005013881A1 (de) * | 2005-03-24 | 2006-09-28 | Infineon Technologies Ag | Verfahren zur Signalverarbeitung und Sendeeinrichtung mit digitaler Vorverzerrung, insbesondere für den Mobilfunk |
| SE532400C2 (sv) * | 2006-08-30 | 2010-01-12 | Nera Networks As | Metod och anordning för detektering och uppskattning av kvadraturdefekter |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0324581A3 (de) * | 1988-01-13 | 1990-11-07 | Hewlett-Packard Company | Abgleichung von Vektordemodulatoren unter Verwendung einer statistischen Analyse |
| US5371481A (en) * | 1993-03-24 | 1994-12-06 | Nokia Mobile Phones Ltd. | Tuning techniques for I/Q channel signals in microwave digital transmission systems |
| JP2610092B2 (ja) | 1993-03-25 | 1997-05-14 | 日本碍子株式会社 | ノンセラミック碍子の金具把持構造及び金具の把持方法 |
-
2003
- 2003-08-20 NO NO20033695A patent/NO321303B1/no not_active IP Right Cessation
-
2004
- 2004-08-19 AT AT04019674T patent/ATE463114T1/de not_active IP Right Cessation
- 2004-08-19 EP EP04019674A patent/EP1511264B1/de not_active Expired - Lifetime
- 2004-08-19 DE DE602004026255T patent/DE602004026255D1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ATE463114T1 (de) | 2010-04-15 |
| EP1511264A1 (de) | 2005-03-02 |
| EP1511264B1 (de) | 2010-03-31 |
| NO20033695L (no) | 2005-02-21 |
| NO20033695D0 (no) | 2003-08-20 |
| DE602004026255D1 (de) | 2010-05-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| CREP | Change of representative |
Representative=s name: ZACCO NORWAY AS, POSTBOKS 2003 VIKA, 0125 OSLO, NO |
|
| MM1K | Lapsed by not paying the annual fees |