DE69736188D1 - Verfahren in einem digitalen quadraturmodulator und -demodulator sowie digitaler quadraturmodulator und -demodulator - Google Patents

Verfahren in einem digitalen quadraturmodulator und -demodulator sowie digitaler quadraturmodulator und -demodulator

Info

Publication number
DE69736188D1
DE69736188D1 DE69736188T DE69736188T DE69736188D1 DE 69736188 D1 DE69736188 D1 DE 69736188D1 DE 69736188 T DE69736188 T DE 69736188T DE 69736188 T DE69736188 T DE 69736188T DE 69736188 D1 DE69736188 D1 DE 69736188D1
Authority
DE
Germany
Prior art keywords
dimodulator
quadrature modulator
digital quadrature
digital
modulator
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
Application number
DE69736188T
Other languages
English (en)
Other versions
DE69736188T2 (de
Inventor
Jarmo Maekinen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Oyj
Original Assignee
Nokia Oyj
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nokia Oyj filed Critical Nokia Oyj
Application granted granted Critical
Publication of DE69736188D1 publication Critical patent/DE69736188D1/de
Publication of DE69736188T2 publication Critical patent/DE69736188T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3845—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier
    • H04L27/3854—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier using a non - coherent carrier, including systems with baseband correction for phase or frequency offset
    • H04L27/3863—Compensation for quadrature error in the received signal
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
DE69736188T 1996-11-29 1997-11-28 Verfahren in einem digitalen quadraturmodulator und -demodulator sowie digitaler quadraturmodulator und -demodulator Expired - Lifetime DE69736188T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI964793 1996-11-29
FI964793A FI117494B (fi) 1996-11-29 1996-11-29 Menetelmä digitaalisessa kvadratuurimodulaattorissa ja kvadratuuridemodulaattorissa, digitaalinen kvadratuurimodulaattori ja kvadratuuridemodulaattori
PCT/FI1997/000738 WO1998024209A1 (en) 1996-11-29 1997-11-28 Method in digital quadrature modulator and demodulator, and digital quadrature modulator and demodulator

Publications (2)

Publication Number Publication Date
DE69736188D1 true DE69736188D1 (de) 2006-08-03
DE69736188T2 DE69736188T2 (de) 2006-11-09

Family

ID=8547175

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69736188T Expired - Lifetime DE69736188T2 (de) 1996-11-29 1997-11-28 Verfahren in einem digitalen quadraturmodulator und -demodulator sowie digitaler quadraturmodulator und -demodulator

Country Status (8)

Country Link
US (2) US6570933B1 (de)
EP (1) EP0941593B1 (de)
JP (2) JP3611862B2 (de)
CN (1) CN1172500C (de)
AU (1) AU5056398A (de)
DE (1) DE69736188T2 (de)
FI (1) FI117494B (de)
WO (1) WO1998024209A1 (de)

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US6826169B1 (en) * 1996-12-20 2004-11-30 Fujitsu Limited Code multiplexing transmitting apparatus
US6148047A (en) * 1998-05-06 2000-11-14 Philips Electronics North America Corporation DC offset compensation for zero if quadrature demodulator
FI107212B (fi) * 1999-03-26 2001-06-15 Nokia Networks Oy I/Q-modulaattorin tasajännitesiirtymän korjaus
DE19949007C1 (de) * 1999-10-11 2001-02-08 Bosch Gmbh Robert Verfahren zum Empfang von Funksignalen in einer Mobilstation und Mobilstation
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AU2003213704A1 (en) * 2002-03-19 2003-10-08 Thomson Licensing S.A. Slicing algorithm for multi-level modulation equalizing schemes
GB0217219D0 (en) * 2002-07-25 2002-09-04 Pace Micro Tech Plc Constellation error vector usage through gain and phase impairments in QAM demodulators
FR2844412B1 (fr) * 2002-09-05 2004-12-03 Thomson Licensing Sa Procede et dispositif de modulation d'une porteuse avec compensation d'erreur d'amplitude et de phase
CN1296012C (zh) * 2002-10-01 2007-01-24 深圳迈瑞生物医疗电子股份有限公司 全数字超声频谱多普勒成像方法及装置
JP4344357B2 (ja) * 2003-03-24 2009-10-14 株式会社アドバンテスト 直交変調装置、方法、プログラム、記録媒体および変調装置
DE10348846B4 (de) * 2003-10-21 2010-07-08 Infineon Technologies Ag Verfahren zur Schätzung eines Frequenzversatzes eines modulierten Bandpass-Signals
JP4341418B2 (ja) * 2004-01-30 2009-10-07 日本電気株式会社 直交変調器の調整装置及び調整方法並びに通信装置とプログラム
WO2005096580A1 (en) * 2004-03-12 2005-10-13 Ntt Docomo, Inc. Peak reduction in ofdm using clipping and modified constellations
JP4376689B2 (ja) * 2004-04-21 2009-12-02 富士通株式会社 直交変調システム
US7181205B1 (en) 2004-05-11 2007-02-20 Rf Micro Devices, Inc. I/Q calibration
DE102004029932A1 (de) * 2004-06-21 2006-01-05 Rohde & Schwarz Gmbh & Co. Kg Verfahren und Vorrichtung zur gleichzeitigen Kompensation von Signalfehlern in IQ-Modulatoren
US7197087B2 (en) * 2004-07-09 2007-03-27 Powerwave Technologies, Inc. System and method for differential IQ delay compensation in a communications system utilizing adaptive AQM compensation
US7327803B2 (en) * 2004-10-22 2008-02-05 Parkervision, Inc. Systems and methods for vector power amplification
US7355470B2 (en) 2006-04-24 2008-04-08 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioning
JP4595509B2 (ja) * 2004-11-26 2010-12-08 ソニー株式会社 無線通信装置及び無線通信方法、並びにコンピュータ・プログラム
US7564893B2 (en) * 2005-03-22 2009-07-21 Agilent Technologies, Inc. Test system and method for parallel modulation error measurement of transceivers
JP5028002B2 (ja) * 2005-09-29 2012-09-19 富士フイルム株式会社 電子内視鏡システム
US8334722B2 (en) 2007-06-28 2012-12-18 Parkervision, Inc. Systems and methods of RF power transmission, modulation and amplification
US8013675B2 (en) 2007-06-19 2011-09-06 Parkervision, Inc. Combiner-less multiple input single output (MISO) amplification with blended control
US7911272B2 (en) 2007-06-19 2011-03-22 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including blended control embodiments
WO2007088938A1 (ja) * 2006-02-03 2007-08-09 Anritsu Corporation 位相制御装置及びそれを用いるパルスパターンジェネレータ並びにエラーディテクタ
CN101043269B (zh) * 2006-03-22 2011-01-05 富士通株式会社 I-q正交调制发射机及其i-q路间相位偏置的监测装置和方法
US7937106B2 (en) 2006-04-24 2011-05-03 ParkerVision, Inc, Systems and methods of RF power transmission, modulation, and amplification, including architectural embodiments of same
US8031804B2 (en) * 2006-04-24 2011-10-04 Parkervision, Inc. Systems and methods of RF tower transmission, modulation, and amplification, including embodiments for compensating for waveform distortion
US7801245B2 (en) * 2006-12-28 2010-09-21 Alcatel-Lucent Usa Inc. Increased reliability of data captures for signal predistortion
US7809080B2 (en) * 2006-12-28 2010-10-05 Alcatel-Lucent Usa Inc. Strategically selecting data captures for signal predistortion
WO2008144017A1 (en) 2007-05-18 2008-11-27 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
DE112008001573T5 (de) * 2007-06-11 2010-05-06 Advantest Corporation Messgerät und Programm
CN101246507B (zh) * 2007-12-29 2010-09-29 湖南大学 一种∑δ调制器开关电流集成电路的参数设计优化方法
US7855995B1 (en) * 2008-02-11 2010-12-21 Urbain A. von der Embse QLM maximum likelihood demodulation
WO2009145887A1 (en) 2008-05-27 2009-12-03 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
CN101912277B (zh) * 2010-08-06 2013-03-27 深圳市蓝韵实业有限公司 一种基于流水线设计的实时数字正交解调的方法与装置
WO2012139126A1 (en) 2011-04-08 2012-10-11 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
WO2012167111A2 (en) 2011-06-02 2012-12-06 Parkervision, Inc. Antenna control
CN106415435B (zh) 2013-09-17 2020-08-11 帕克维辛股份有限公司 用于呈现信息承载时间函数的方法、装置和系统
CN111510406B (zh) * 2020-06-03 2024-05-17 上海创远仪器技术股份有限公司 实现宽带iq调制实时预失真校准的电路及方法

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EP0324581A3 (de) 1988-01-13 1990-11-07 Hewlett-Packard Company Abgleichung von Vektordemodulatoren unter Verwendung einer statistischen Analyse
EP0343273B1 (de) 1988-05-27 1994-04-27 Deutsche ITT Industries GmbH Korrekturschaltung für ein digitales Quadratur-Signalpaar
FR2641923B1 (fr) 1989-01-19 1991-03-22 Alcatel Thomson Faisceaux Procede d'asservissement des parametres d'un modulateur a 2n etats de phase et d'amplitude, et dispositif de mise en oeuvre de ce procede
FI81704C (fi) 1989-04-11 1990-11-12 Telenokia Oy Kvadraturmodulator.
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FI94818C (fi) 1993-06-02 1995-10-25 Nokia Telecommunications Oy Menetelmä digitaalisesti moduloidun signaalin demoduloimiseksi sekä demodulaattori
US5705949A (en) * 1996-09-13 1998-01-06 U.S. Robotics Access Corp. Compensation method for I/Q channel imbalance errors
FI117494B (fi) * 1996-11-29 2006-10-31 Nokia Corp Menetelmä digitaalisessa kvadratuurimodulaattorissa ja kvadratuuridemodulaattorissa, digitaalinen kvadratuurimodulaattori ja kvadratuuridemodulaattori
US6108529A (en) * 1998-02-01 2000-08-22 Bae Systems Aerospace Electronics Inc. Radio system including FET mixer device and square-wave drive switching circuit and method therefor
US6625424B1 (en) * 2000-03-21 2003-09-23 Koninklijke Philips Electronics N.V. Autocalibration of a transceiver through nulling of a DC-voltage in a receiver and injecting of DC-signals in a transmitter

Also Published As

Publication number Publication date
WO1998024209A1 (en) 1998-06-04
EP0941593B1 (de) 2006-06-21
DE69736188T2 (de) 2006-11-09
JP2004343806A (ja) 2004-12-02
US20030118121A1 (en) 2003-06-26
JP3611862B2 (ja) 2005-01-19
FI964793A0 (fi) 1996-11-29
EP0941593A1 (de) 1999-09-15
JP3826147B2 (ja) 2006-09-27
AU5056398A (en) 1998-06-22
JP2001505016A (ja) 2001-04-10
CN1238878A (zh) 1999-12-15
US6714601B2 (en) 2004-03-30
CN1172500C (zh) 2004-10-20
FI117494B (fi) 2006-10-31
US6570933B1 (en) 2003-05-27
FI964793A (fi) 1998-05-30

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Legal Events

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8364 No opposition during term of opposition