DE69431215D1 - Kalibrierungsverfahren für Vektormodulatoren - Google Patents

Kalibrierungsverfahren für Vektormodulatoren

Info

Publication number
DE69431215D1
DE69431215D1 DE69431215T DE69431215T DE69431215D1 DE 69431215 D1 DE69431215 D1 DE 69431215D1 DE 69431215 T DE69431215 T DE 69431215T DE 69431215 T DE69431215 T DE 69431215T DE 69431215 D1 DE69431215 D1 DE 69431215D1
Authority
DE
Germany
Prior art keywords
calibration procedure
vector modulators
modulators
vector
calibration
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
DE69431215T
Other languages
English (en)
Other versions
DE69431215T2 (de
Inventor
Erkki Tiittanen
Heikki Mattila
Tapio Rautava
Jorma Matero
Kjell Ostman
Mikko Halttunen
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 DE69431215D1 publication Critical patent/DE69431215D1/de
Publication of DE69431215T2 publication Critical patent/DE69431215T2/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
    • H04L27/36—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
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/38—Angle modulation by converting amplitude modulation to angle modulation
    • H03C3/40—Angle modulation by converting amplitude modulation to angle modulation using two signal paths the outputs of which have a predetermined phase difference and at least one output being amplitude-modulated
    • H03C3/406—Angle modulation by converting amplitude modulation to angle modulation using two signal paths the outputs of which have a predetermined phase difference and at least one output being amplitude-modulated using a feedback loop containing mixers or demodulators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B1/0475—Circuits with means for limiting noise, interference or distortion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
    • H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
    • H04L27/2067—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states
    • H04L27/2071—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states in which the data are represented by the carrier phase, e.g. systems with differential coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
DE69431215T 1993-03-24 1994-03-22 Kalibrierungsverfahren für Vektormodulatoren Expired - Lifetime DE69431215T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/036,631 US5371481A (en) 1993-03-24 1993-03-24 Tuning techniques for I/Q channel signals in microwave digital transmission systems

Publications (2)

Publication Number Publication Date
DE69431215D1 true DE69431215D1 (de) 2002-10-02
DE69431215T2 DE69431215T2 (de) 2003-04-24

Family

ID=21889712

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69431215T Expired - Lifetime DE69431215T2 (de) 1993-03-24 1994-03-22 Kalibrierungsverfahren für Vektormodulatoren

Country Status (4)

Country Link
US (1) US5371481A (de)
EP (1) EP0617532B1 (de)
JP (1) JP3566330B2 (de)
DE (1) DE69431215T2 (de)

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GB2281830B (en) * 1993-09-11 1998-08-12 Nokia Mobile Phones Ltd I/q-modulator and i/q-demodulator
GB2282287B (en) * 1993-09-25 1998-01-28 Nokia Mobile Phones Ltd A mixer
US5574992A (en) * 1994-04-29 1996-11-12 Motorola, Inc. Method and apparatus for reducing off-channel interference produced by a linear transmitter
JPH0832462A (ja) * 1994-07-15 1996-02-02 Uniden Corp カーテジアンループのｄｃオフセット回路
DE4430679C1 (de) * 1994-08-29 1995-12-21 Dataradio Eng & Consult Verfahren und Vorrichtung zur Entzerrung von Signalpaaren
US5668842A (en) * 1995-02-28 1997-09-16 Hughes Aircraft Company High-speed digital-to-RF-converter
FI98177C (fi) 1995-06-01 1997-04-25 Nokia Mobile Phones Ltd Menetelmä ja piirijärjestely häiriöllisen signaalin käsittelemiseksi
FI98673C (fi) * 1995-08-07 1997-07-25 Nokia Telecommunications Oy Automaattinen radiolähettimen viritys
EP0760567A3 (de) * 1995-08-30 2000-09-06 Siemens Aktiengesellschaft Digitaler QAM-modulator
FR2739239B1 (fr) * 1995-09-27 1997-11-14 Alcatel Telspace Dispositif de correction d'un defaut de quadrature d'un modulateur en quadrature et/ou d'un demodulateur d'un signal a pluralite d'etats de phase, emetteur et recepteur correspondants
US5995541A (en) * 1995-10-13 1999-11-30 Philips Electronics North America Corporation Method and apparatus for self-calibration and testing of ZPSK transmitter/receiver IC's
JP3336860B2 (ja) * 1996-05-31 2002-10-21 安藤電気株式会社 変調精度の調整装置
US5705949A (en) * 1996-09-13 1998-01-06 U.S. Robotics Access Corp. Compensation method for I/Q channel imbalance errors
FR2755335B1 (fr) * 1996-10-24 1998-11-27 Alsthom Cge Alcatel Estimateur du defaut de balance d'un modulateur en quadrature et etage de modulation l'utilisant
GB2320864B (en) 1996-12-31 2001-07-11 Nokia Mobile Phones Ltd Signal Offset Elimination
JP3570843B2 (ja) * 1997-03-21 2004-09-29 日本電気エンジニアリング株式会社 位相変調器
FI105377B (fi) 1997-05-29 2000-07-31 Nokia Mobile Phones Ltd Menetelmä kahden rinnakkaisen kanavan koodijakoiseksi lähettämiseksi sekä menetelmän toteuttava radiolaite
US6618096B1 (en) * 1997-09-29 2003-09-09 Scientific-Atlanta, Inc. System and method for adaptively balancing quadrature modulators for vestigial-sideband generation
FI104133B (fi) 1997-11-28 1999-11-15 Nokia Mobile Phones Ltd Koodaus- ja modulointimenetelmä ja laite sen soveltamiseksi
FI106607B (fi) 1998-01-07 2001-02-28 Nokia Mobile Phones Ltd Solun valinta usean modulaation solukkoradiojärjestelmässä
US6298094B1 (en) * 1998-03-30 2001-10-02 Motorola, Inc. Method and apparatus for power control in a transmitter
US6198419B1 (en) * 1998-06-17 2001-03-06 Lucent Technologies, Inc. Method and apparatus for extending the spurious free dynamic range of a digital-to-analog converter
FI981518A (fi) 1998-07-01 2000-01-02 Nokia Mobile Phones Ltd Tiedonsiirtomenetelmä ja radiojärjestelmä
FI106491B (fi) 1998-08-12 2001-02-15 Nokia Mobile Phones Ltd Menetelmä ja laitteisto radiorajapinnan datanopeuden saumattomaksi muuttamiseksi piirikytketyssä välityksessä
DE50000726D1 (de) * 1999-02-11 2002-12-12 Siemens Ag Verfahren und anordnung zur leistungsregelung eines sendeverstärkers
US6512800B1 (en) * 1999-03-12 2003-01-28 Lucent Technologies Inc. Method and system for correcting phase and amplitude imbalances of a quadrature modulated RF signal
US6265949B1 (en) * 1999-12-22 2001-07-24 Lg Information & Communications, Ltd. Phase compensation apparatus and method for a digital modulator
US6421397B1 (en) * 2000-01-28 2002-07-16 Alcatel Canada Inc. Modulation system having on-line IQ calibration
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
US7065154B2 (en) * 2000-12-29 2006-06-20 Nokia Corporation Baseband predistortion method for multicarrier transmitters
US6745015B2 (en) 2001-02-08 2004-06-01 Motorola, Inc. Method for automatic carrier suppression tuning of a wireless communication device
EP1267484B1 (de) * 2001-06-14 2008-06-04 Alcatel Lucent Verfahren und Vorrichtung zur Vorverzerrung eines Sendesignals
DE10132587A1 (de) * 2001-07-05 2002-11-14 Infineon Technologies Ag Sendeanordnung mit Leistungsregelung
US7333557B2 (en) * 2002-12-16 2008-02-19 Nortel Networks Limited Adaptive controller for linearization of transmitter with impairments
US7251290B2 (en) * 2002-12-16 2007-07-31 Nortel Networks Limited Adaptive controller for linearization of transmitter
US7038465B2 (en) * 2003-04-02 2006-05-02 Agilent Technologies, Inc. System and method for calibrating balanced signals
US6768390B1 (en) * 2003-04-02 2004-07-27 Agilent Technologies, Inc. System and method for generating balanced modulated signals with arbitrary amplitude and phase control using modulation
US6907025B2 (en) * 2003-06-06 2005-06-14 Interdigital Technology Corporation Adjusting the amplitude and phase characteristics of transmitter generated wireless communication signals in response to base station transmit power control signals and known transmitter amplifier characteristics
NO321303B1 (no) * 2003-08-20 2006-04-24 Nera Asa Adaptiv ubalansekorrigering i en kvadraturmodulator
KR100602642B1 (ko) * 2004-01-30 2006-07-19 삼성전자주식회사 무선 기지국 시스템에서의 위상 에러 보정장치 및 그 방법
US20080146168A1 (en) * 2004-02-09 2008-06-19 Sige Semiconductor Inc. Methods of Enhancing Power Amplifier Linearity
US7177772B2 (en) * 2004-05-25 2007-02-13 Texas Instruments Incorporated System and method for generating and measuring noise parameters
US7564893B2 (en) * 2005-03-22 2009-07-21 Agilent Technologies, Inc. Test system and method for parallel modulation error measurement of transceivers
US8995502B1 (en) 2006-04-04 2015-03-31 Apple Inc. Transceiver with spectral analysis
US7796960B1 (en) 2006-04-04 2010-09-14 Nortel Networks Limited Signal transmitter linearization
US8498590B1 (en) 2006-04-04 2013-07-30 Apple Inc. Signal transmitter linearization
US8886341B1 (en) 2006-04-04 2014-11-11 Microsoft Corporation Adaptive sample-by-sample controller for under-determined systems
US7944984B1 (en) * 2006-04-11 2011-05-17 Marvell International Ltd. I/Q calibration in the presence of phase offset
US7865160B2 (en) * 2006-06-27 2011-01-04 Motorola Mobility, Inc. Mixed mode power measurement calibration and reporting in wireless communication networks
US7567782B2 (en) * 2006-07-28 2009-07-28 Freescale Semiconductor, Inc. Re-configurable impedance matching and harmonic filter system
US8478222B2 (en) * 2007-01-05 2013-07-02 Qualcomm Incorporated I/Q calibration for walking-IF architectures
US7852969B2 (en) * 2007-07-30 2010-12-14 Mitutoyo Corporation System and method for dynamic calibration of a quadrature encoder
JP5070993B2 (ja) * 2007-08-27 2012-11-14 富士通株式会社 音処理装置、位相差補正方法及びコンピュータプログラム
US20090079497A1 (en) * 2007-09-21 2009-03-26 Nanoamp Solutions, Inc. (Cayman) Phase tuning techniques
JP2018040624A (ja) * 2016-09-06 2018-03-15 三菱電機株式会社 送信機、集積回路、検出部および集積回路の試験方法
CN109691226B (zh) 2016-12-21 2021-07-16 松下电器产业株式会社 电磁能量传递系统、生成射频信号的方法和射频通道

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US4700151A (en) * 1985-03-20 1987-10-13 Nec Corporation Modulation system capable of improving a transmission system
GB2213006B (en) * 1987-11-27 1992-01-29 Stc Plc Correction of rf errors in quadrature channels of a zero-if transmitter
FI81704C (fi) * 1989-04-11 1990-11-12 Telenokia Oy Kvadraturmodulator.
US5021753A (en) * 1990-08-03 1991-06-04 Motorola, Inc. Splatter controlled amplifier
JP2887987B2 (ja) * 1991-10-23 1999-05-10 日本電気株式会社 ディジタル変調回路

Also Published As

Publication number Publication date
EP0617532A1 (de) 1994-09-28
EP0617532B1 (de) 2002-08-28
DE69431215T2 (de) 2003-04-24
JPH06326737A (ja) 1994-11-25
US5371481A (en) 1994-12-06
JP3566330B2 (ja) 2004-09-15

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