FI964793A0 - Menetelmä digitaalisessa kvadratuurimodulaattorissa ja kvadratuuridemolulaattorissa, digitaalinen kvadratuurimodulaattori ja kvadratuuridemodulaattori - Google Patents

Menetelmä digitaalisessa kvadratuurimodulaattorissa ja kvadratuuridemolulaattorissa, digitaalinen kvadratuurimodulaattori ja kvadratuuridemodulaattori

Info

Publication number
FI964793A0
FI964793A0 FI964793A FI964793A FI964793A0 FI 964793 A0 FI964793 A0 FI 964793A0 FI 964793 A FI964793 A FI 964793A FI 964793 A FI964793 A FI 964793A FI 964793 A0 FI964793 A0 FI 964793A0
Authority
FI
Finland
Prior art keywords
quadrature
digital
demodulator
modulator
procedure
Prior art date
Application number
FI964793A
Other languages
English (en)
Swedish (sv)
Other versions
FI964793A (fi
FI117494B (fi
Inventor
Jarmo Maekinen
Original Assignee
Nokia Telecommunications Oy
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 Telecommunications Oy filed Critical Nokia Telecommunications Oy
Publication of FI964793A0 publication Critical patent/FI964793A0/fi
Priority to FI964793A priority Critical patent/FI117494B/fi
Priority to US09/308,709 priority patent/US6570933B1/en
Priority to PCT/FI1997/000738 priority patent/WO1998024209A1/en
Priority to JP52433698A priority patent/JP3611862B2/ja
Priority to EP97913230A priority patent/EP0941593B1/en
Priority to DE69736188T priority patent/DE69736188T2/de
Priority to CNB971801797A priority patent/CN1172500C/zh
Priority to AU50563/98A priority patent/AU5056398A/en
Publication of FI964793A publication Critical patent/FI964793A/fi
Priority to US10/339,554 priority patent/US6714601B2/en
Priority to JP2004233425A priority patent/JP3826147B2/ja
Application granted granted Critical
Publication of FI117494B publication Critical patent/FI117494B/fi

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)
FI964793A 1996-11-29 1996-11-29 Menetelmä digitaalisessa kvadratuurimodulaattorissa ja kvadratuuridemodulaattorissa, digitaalinen kvadratuurimodulaattori ja kvadratuuridemodulaattori FI117494B (fi)

Priority Applications (10)

Application Number Priority Date Filing Date Title
FI964793A FI117494B (fi) 1996-11-29 1996-11-29 Menetelmä digitaalisessa kvadratuurimodulaattorissa ja kvadratuuridemodulaattorissa, digitaalinen kvadratuurimodulaattori ja kvadratuuridemodulaattori
EP97913230A EP0941593B1 (en) 1996-11-29 1997-11-28 Method in digital quadrature modulator and demodulator, and digital quadrature modulator and demodulator
PCT/FI1997/000738 WO1998024209A1 (en) 1996-11-29 1997-11-28 Method in digital quadrature modulator and demodulator, and digital quadrature modulator and demodulator
JP52433698A JP3611862B2 (ja) 1996-11-29 1997-11-28 デジタル直角変調及び復調方法、並びにデジタル直角変調器及び復調器
US09/308,709 US6570933B1 (en) 1996-11-29 1997-11-28 Method in digital quadrature modulator and demodulator, and digital quadrature modulator and demodulator
DE69736188T DE69736188T2 (de) 1996-11-29 1997-11-28 Verfahren in einem digitalen quadraturmodulator und -demodulator sowie digitaler quadraturmodulator und -demodulator
CNB971801797A CN1172500C (zh) 1996-11-29 1997-11-28 数字正交调制器和解调器中的方法,以及数字正交调制器和解调器
AU50563/98A AU5056398A (en) 1996-11-29 1997-11-28 Method in digital quadrature modulator and demodulator, and digital quadrature modulator and demodulator
US10/339,554 US6714601B2 (en) 1996-11-29 2003-01-10 Method in digital quadrature modulator and demodulator, and digital quadrature modulator and demodulator
JP2004233425A JP3826147B2 (ja) 1996-11-29 2004-08-10 デジタル直角変調器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI964793A FI117494B (fi) 1996-11-29 1996-11-29 Menetelmä digitaalisessa kvadratuurimodulaattorissa ja kvadratuuridemodulaattorissa, digitaalinen kvadratuurimodulaattori ja kvadratuuridemodulaattori
FI964793 1996-11-29

Publications (3)

Publication Number Publication Date
FI964793A0 true FI964793A0 (fi) 1996-11-29
FI964793A FI964793A (fi) 1998-05-30
FI117494B FI117494B (fi) 2006-10-31

Family

ID=8547175

Family Applications (1)

Application Number Title Priority Date Filing Date
FI964793A FI117494B (fi) 1996-11-29 1996-11-29 Menetelmä digitaalisessa kvadratuurimodulaattorissa ja kvadratuuridemodulaattorissa, digitaalinen kvadratuurimodulaattori ja kvadratuuridemodulaattori

Country Status (8)

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

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FI107212B (fi) * 1999-03-26 2001-06-15 Nokia Networks Oy I/Q-modulaattorin tasajännitesiirtymän korjaus
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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
US7358828B2 (en) * 2003-03-24 2008-04-15 Advantest Corporation Orthogonal modulation device, method, program, recording medium, and modulation device
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
JP4436410B2 (ja) * 2004-03-12 2010-03-24 株式会社エヌ・ティ・ティ・ドコモ クリッピングおよび修正されたコンステレーションを使用するｏｆｄｍにおけるピーク低減
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
US7911272B2 (en) 2007-06-19 2011-03-22 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including blended control embodiments
US9106316B2 (en) 2005-10-24 2015-08-11 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification
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
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
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JP5161877B2 (ja) * 2007-06-11 2013-03-13 株式会社アドバンテスト 測定装置およびプログラム
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
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KR20160058855A (ko) 2013-09-17 2016-05-25 파커비전, 인크. 정보를 포함하는 시간의 함수를 렌더링하기 위한 방법, 장치 및 시스템

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Also Published As

Publication number Publication date
US20030118121A1 (en) 2003-06-26
US6570933B1 (en) 2003-05-27
DE69736188D1 (de) 2006-08-03
JP3826147B2 (ja) 2006-09-27
DE69736188T2 (de) 2006-11-09
FI964793A (fi) 1998-05-30
CN1172500C (zh) 2004-10-20
AU5056398A (en) 1998-06-22
JP2004343806A (ja) 2004-12-02
WO1998024209A1 (en) 1998-06-04
US6714601B2 (en) 2004-03-30
EP0941593A1 (en) 1999-09-15
EP0941593B1 (en) 2006-06-21
JP3611862B2 (ja) 2005-01-19
CN1238878A (zh) 1999-12-15
JP2001505016A (ja) 2001-04-10
FI117494B (fi) 2006-10-31

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