AT359650T - Amplitude imbalance of a quadrature modulator compensation - Google Patents

Amplitude imbalance of a quadrature modulator compensation

Info

Publication number
AT359650T
AT359650T AT03730275T AT03730275T AT359650T AT 359650 T AT359650 T AT 359650T AT 03730275 T AT03730275 T AT 03730275T AT 03730275 T AT03730275 T AT 03730275T AT 359650 T AT359650 T AT 359650T
Authority
AT
Austria
Prior art keywords
quadrature modulator
amplitude imbalance
modulator compensation
compensation
imbalance
Prior art date
Application number
AT03730275T
Other languages
German (de)
Inventor
Juha Heiskala
Lauri Kuru
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
Priority to US10/173,574 priority Critical patent/US6700453B2/en
Application filed by Nokia Corp filed Critical Nokia Corp
Publication of AT359650T publication Critical patent/AT359650T/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/32Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36Modulator circuits; Transmitter circuits
    • H04L27/366Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
    • H04L27/367Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion
    • H04L27/368Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion adaptive predistortion
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03DDEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/007Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related signals
    • H03D3/009Compensating quadrature phase or amplitude imbalances
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/0014Carrier regulation
    • H04L2027/0016Stabilisation of local oscillators
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/0014Carrier regulation
    • H04L2027/0018Arrangements at the transmitter end
AT03730275T 2002-06-18 2003-06-13 Amplitude imbalance of a quadrature modulator compensation AT359650T (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/173,574 US6700453B2 (en) 2002-06-18 2002-06-18 Amplitude imbalance compensation of quadrature modulator

Publications (1)

Publication Number Publication Date
AT359650T true AT359650T (en) 2007-05-15

Family

ID=29733386

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03730275T AT359650T (en) 2002-06-18 2003-06-13 Amplitude imbalance of a quadrature modulator compensation

Country Status (8)

Country Link
US (1) US6700453B2 (en)
EP (1) EP1514393B1 (en)
CN (1) CN100481828C (en)
AT (1) AT359650T (en)
AU (1) AU2003240909A1 (en)
DE (1) DE60313166T2 (en)
ES (1) ES2282634T3 (en)
WO (1) WO2003107615A1 (en)

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US7180937B2 (en) * 2002-11-20 2007-02-20 Agilent Technologies, Inc. Method for determining imbalance in a vector signal modulator
FR2858715B1 (en) * 2003-08-04 2005-12-30 Soitec Silicon On Insulator Method semiconductor layer detachment
JP4341418B2 (en) * 2004-01-30 2009-10-07 日本電気株式会社 Adjustment of the quadrature modulator apparatus and adjustment method and a communication apparatus and a program
US20050201483A1 (en) * 2004-03-12 2005-09-15 Edmund Coersmeier Error adjustment for multi-antenna transmitter
US7078965B2 (en) * 2004-04-26 2006-07-18 World Energy Labs (2), Inc. Servo balancing among driver devices
US7369624B2 (en) * 2004-06-01 2008-05-06 Orbital Sciences Corp. Carrier suppression type modulator with encoded modulating signals
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
US8078123B2 (en) * 2005-03-29 2011-12-13 Broadcom Corporation RF transmission error detection and correction module
US7474711B2 (en) * 2005-05-06 2009-01-06 Motorola, Inc Method and system for I/Q imbalance and DC offset correction
US7172489B1 (en) * 2005-07-26 2007-02-06 Flanagan Michael P Jar opener
KR100725905B1 (en) 2006-02-15 2007-05-31 한국과학기술원 Joint adaptive compensation for amplifier nonlinearity and quadrature modulation errors
CN101043269B (en) * 2006-03-22 2011-01-05 富士通株式会社 I-Q quadrature modulation transmitter and its device and method for monitoring I-Q phase deviation
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
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
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
JP4172805B2 (en) 2006-07-12 2008-10-29 株式会社東芝 Communication device, a method for setting value calculation orthogonal error compensation and orthogonal error compensation program
GB0705544D0 (en) * 2007-03-22 2007-05-02 Nokia Corp Radio receiver or transmitter and method for reducing an IQ gain imbalance
CN101309100B (en) 2007-05-18 2013-04-24 富士通株式会社 I/Q phase and gain compensating apparatus and method of orthogonal receiver
US8315336B2 (en) 2007-05-18 2012-11-20 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including a switching stage embodiment
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
US8334722B2 (en) 2007-06-28 2012-12-18 Parkervision, Inc. Systems and methods of RF power transmission, modulation and amplification
WO2009145887A1 (en) 2008-05-27 2009-12-03 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
JP2010169504A (en) * 2009-01-22 2010-08-05 Anritsu Corp Jitter transfer characteristic measuring instrument
KR20140026458A (en) 2011-04-08 2014-03-05 파커비전, 인크. Systems and methods of rf power transmission, modulation, and amplification
JP6174574B2 (en) 2011-06-02 2017-08-02 パーカーヴィジョン インコーポレイテッド Antenna control
US8995560B2 (en) 2011-10-26 2015-03-31 Google Technology Holdings LLC Power detection of individual carriers of a multiple-carrier wideband signal
WO2013067291A1 (en) * 2011-11-02 2013-05-10 Raytheon Company Quadrature modulator balancing system
EP3047348A4 (en) 2013-09-17 2016-09-07 Parkervision Inc Method, apparatus and system for rendering an information bearing function of time
CN105490759B (en) * 2014-10-13 2018-07-27 展讯通信(上海)有限公司 Iq signal calibration method and device
CN105490973B (en) * 2014-10-13 2018-11-27 展讯通信(上海)有限公司 Iq signal calibration method and device

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US6298096B1 (en) 1998-11-19 2001-10-02 Titan Corporation Method and apparatus for determination of predistortion parameters for a quadrature modulator
US6421398B1 (en) * 2000-01-28 2002-07-16 Alcatel Canada Inc. Modulation system having on-line IQ calibration
US6671336B1 (en) 2000-05-16 2003-12-30 Motorola, Inc. Gain controller for circuit having in-phase and quadrature channels, and method

Also Published As

Publication number Publication date
EP1514393B1 (en) 2007-04-11
AU2003240909A1 (en) 2003-12-31
DE60313166D1 (en) 2007-05-24
CN100481828C (en) 2009-04-22
US6700453B2 (en) 2004-03-02
EP1514393A1 (en) 2005-03-16
CN1663214A (en) 2005-08-31
WO2003107615A1 (en) 2003-12-24
US20030231075A1 (en) 2003-12-18
DE60313166T2 (en) 2007-12-20
ES2282634T3 (en) 2007-10-16

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Legal Events

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RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties