FI117494B - Menetelmä digitaalisessa kvadratuurimodulaattorissa ja kvadratuuridemodulaattorissa, digitaalinen kvadratuurimodulaattori ja kvadratuuridemodulaattori - Google Patents

Menetelmä digitaalisessa kvadratuurimodulaattorissa ja kvadratuuridemodulaattorissa, digitaalinen kvadratuurimodulaattori ja kvadratuuridemodulaattori Download PDF

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Publication number
FI117494B
FI117494B FI964793A FI964793A FI117494B FI 117494 B FI117494 B FI 117494B FI 964793 A FI964793 A FI 964793A FI 964793 A FI964793 A FI 964793A FI 117494 B FI117494 B FI 117494B
Authority
FI
Finland
Prior art keywords
quadrature
amplitude
samples
modulator
demodulator
Prior art date
Application number
FI964793A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI964793A (fi
FI964793A0 (fi
Inventor
Jarmo Maekinen
Original Assignee
Nokia Corp
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 Corp filed Critical Nokia Corp
Publication of FI964793A0 publication Critical patent/FI964793A0/fi
Priority to FI964793A priority Critical patent/FI117494B/fi
Priority to JP52433698A priority patent/JP3611862B2/ja
Priority to EP97913230A priority patent/EP0941593B1/en
Priority to AU50563/98A priority patent/AU5056398A/en
Priority to PCT/FI1997/000738 priority patent/WO1998024209A1/en
Priority to DE69736188T priority patent/DE69736188T2/de
Priority to US09/308,709 priority patent/US6570933B1/en
Priority to CNB971801797A priority patent/CN1172500C/zh
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

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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
PCT/FI1997/000738 WO1998024209A1 (en) 1996-11-29 1997-11-28 Method in digital quadrature modulator and demodulator, and digital quadrature modulator and demodulator
EP97913230A EP0941593B1 (en) 1996-11-29 1997-11-28 Method in digital quadrature modulator and demodulator, and digital quadrature modulator and demodulator
AU50563/98A AU5056398A (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
DE69736188T DE69736188T2 (de) 1996-11-29 1997-11-28 Verfahren in einem digitalen quadraturmodulator und -demodulator sowie digitaler quadraturmodulator und -demodulator
US09/308,709 US6570933B1 (en) 1996-11-29 1997-11-28 Method in digital quadrature modulator and demodulator, and digital quadrature modulator and 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
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 FI964793A0 (fi) 1996-11-29
FI964793A FI964793A (fi) 1998-05-30
FI117494B true 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 (zh)
EP (1) EP0941593B1 (zh)
JP (2) JP3611862B2 (zh)
CN (1) CN1172500C (zh)
AU (1) AU5056398A (zh)
DE (1) DE69736188T2 (zh)
FI (1) FI117494B (zh)
WO (1) WO1998024209A1 (zh)

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BRPI0303333A2 (pt) * 2002-03-19 2016-06-21 Thomson Licensing Sa algoritmo de fracionamento para esquemas de equalização com modulação com múltiplos níveis
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
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CN1965553B (zh) * 2004-03-12 2010-05-26 株式会社Ntt都科摩 生成误差信号的设备和方法
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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
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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
CN101310498B (zh) * 2006-02-03 2012-01-11 安立股份有限公司 相位控制器设备、以及使用相位控制器设备的脉冲模式生成器和误差检测器
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
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
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US7801245B2 (en) * 2006-12-28 2010-09-21 Alcatel-Lucent Usa Inc. Increased reliability of data captures for signal predistortion
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Also Published As

Publication number Publication date
FI964793A (fi) 1998-05-30
JP3611862B2 (ja) 2005-01-19
JP3826147B2 (ja) 2006-09-27
DE69736188T2 (de) 2006-11-09
WO1998024209A1 (en) 1998-06-04
DE69736188D1 (de) 2006-08-03
US6714601B2 (en) 2004-03-30
JP2004343806A (ja) 2004-12-02
CN1172500C (zh) 2004-10-20
JP2001505016A (ja) 2001-04-10
FI964793A0 (fi) 1996-11-29
EP0941593B1 (en) 2006-06-21
EP0941593A1 (en) 1999-09-15
US20030118121A1 (en) 2003-06-26
CN1238878A (zh) 1999-12-15
AU5056398A (en) 1998-06-22
US6570933B1 (en) 2003-05-27

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